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Journal articles on the topic 'Tunable Fiber Laser'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

H. Ahmad, H. Ahmad, S. N. Aidit S. N. Aidit, S. I. Ooi S. I. Ooi, and Z. C. Tiu Z. C. Tiu. "All-fiber, wavelength-tunable ultrafast praseodymium fiber laser." Chinese Optics Letters 16, no. 12 (2018): 121405. http://dx.doi.org/10.3788/col201816.121405.

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2

Pei, Wenxi, Hao Li, Wei Huang, Meng Wang, and Zefeng Wang. "All-Fiber Gas Raman Laser by D2-Filled Hollow-Core Photonic Crystal Fibers." Photonics 8, no. 9 (September 9, 2021): 382. http://dx.doi.org/10.3390/photonics8090382.

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We report here an all-fiber structure tunable gas Raman laser based on deuterium-filled hollow-core photonic crystal fibers (HC-PCFs). An all-fiber gas cavity is fabricated by fusion splicing a 49 m high-pressure deuterium-filled HC-PCF with two solid-core single-mode fibers at both ends. When pumped with a pulsed fiber amplifier seeded by a tunable laser diode at 1.5 μm, Raman lasers ranging from 1643 nm to 1656 nm are generated. The maximum output power is ~1.2 W with a Raman conversion efficiency of ~45.6% inside the cavity. This work offers an alternative choice for all-fiber lasers operating at 1.6–1.7 μm band.

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3

Khattak, Anum, Gerard Tatel, and Li Wei. "Tunable and Switchable Erbium-Doped Fiber Laser Using a Multimode-Fiber Based Filter." Applied Sciences 8, no. 7 (July 13, 2018): 1135. http://dx.doi.org/10.3390/app8071135.

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We demonstrated a compact tunable and switchable single/dual-wavelength erbium-doped fiber laser. The fiber laser can be tuned and switched from single-wavelength to dual-wavelength oscillation by using our recently proposed tunable comb filter. The comb filter consists of a section of multimode fiber (MMF) coiled into a polarization controller and two sections of single mode fibers (SMFs) to form a SMF/MMF/SMF structure, serving as a simple tunable all-fiber Mach-Zehnder interferometer. Due to the insertion of the MMF-based polarization controller (PC), an additional phase shift is introduced from the difference of the birefringence intensity in different dominant modes, which can be used to tune the fiber laser. In the experiment, by properly adjusting the PC, a tuning range of 9.3 nm can be achieved for the single-wavelength operation. Moreover, dual-wavelength operation with different free-spectral-ranges can be obtained. The tunable and switchable fiber lasers are of great importance for their applications in optical testing, optical fiber sensing, and signal processing.

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4

Grzegorczyk, Adrian, and Marcin Mamajek. "A 70 W thulium-doped all-fiber laser operating at 1940 nm." Photonics Letters of Poland 11, no. 3 (September 30, 2019): 81. http://dx.doi.org/10.4302/plp.v11i3.928.

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An all-fiber thulium-doped fiber laser operating at a wavelength of 1940 nm is reported. A maximum output continuous-wave power of 70.7 W with a slope efficiency of 59%, determined with respect to the absorbed pump power, was demonstrated. The laser delivered almost a single-mode beam with a beam quality factor of < 1.3.Full Text: PDF ReferencesM. N. Zervas and C. A. Codemard, "High Power Fiber Lasers: A Review", IEEE J. Sel. Top. Quantum Electron. 20, 0904123 (2014). CrossRef D. J. Richardson, J. Nilsson, and W. A. Clarkson. "High power fiber lasers: current status and future perspectives [Invited]", J. Opt. Soc. Am. B 27, B63 (2010). CrossRef J. Swiderski, A. Zajac, and M. Skorczakowski, "Pulsed ytterbium-doped large mode area double-clad fiber amplifier in MOFPA configuration", Opto-Electron. Rev. 15, 98 (2007). CrossRef M. Eckerle et al. "High-average-power actively-modelocked Tm3+ fiber lasers", Proc. SPIE 8237, 823740 (2012). CrossRef J. Swiderski, D. Dorosz, M. Skorczakowski, and W. Pichola, "Ytterbium-doped fiber amplifier with tunable repetition rate and pulse duration", Laser Phys. 20, 1738 (2010). CrossRef P. Grzes and J. Swiderski, "Gain-Switched 2-μm Fiber Laser System Providing Kilowatt Peak-Power Mode-Locked Resembling Pulses and Its Application to Supercontinuum Generation in Fluoride Fibers", IEEE Phot. J. 10, 1 (2018). CrossRef S. Liang et al. "Transmission of wireless signals using space division multiplexing in few mode fibers", Opt. Express 26, 6490 (2018). CrossRef J. Swiderski, M. Michalska, and P. Grzes, "Broadband and top-flat mid-infrared supercontinuum generation with 3.52 W time-averaged power in a ZBLAN fiber directly pumped by a 2-µm mode-locked fiber laser and amplifier", Appl. Phys. B 124, 152 (2018). CrossRef F. Zhao et al. "Electromagnetically induced polarization grating", Sci. Rep. 8, 16369 (2018). CrossRef J. Sotor et al. "Ultrafast thulium-doped fiber laser mode locked with black phosphorus", Opt. Lett. 40, 3885 (2015). CrossRef M. Olivier et al. "Femtosecond fiber Mamyshev oscillator at 1550 nm", Opt. Lett. 44, 851 (2019). CrossRef J. Swiderski and M. Michalska, "Over three-octave spanning supercontinuum generated in a fluoride fiber pumped by Er & Er:Yb-doped and Tm-doped fiber amplifiers", Opt. Laser Technol. 52, 75 (2013). CrossRef C.Yao et al. "High-power mid-infrared supercontinuum laser source using fluorotellurite fiber", Optica 5, 1264 (2018). CrossRef J. Swiderski and M. Maciejewska, "Watt-level, all-fiber supercontinuum source based on telecom-grade fiber components", Appl. Phys. B 109, 177 (2012). CrossRef O. Traxer and E. X. Keller, "Thulium fiber laser: the new player for kidney stone treatment? A comparison with Holmium:YAG laser", World J. Urol., 1-12 (2019). CrossRef M. Michalska, et al. "Highly stable, efficient Tm-doped fiber laser—a potential scalpel for low invasive surgery", Laser Phys. Lett. 13, 115101 (2016). CrossRef R. L. Blackmon et al. "Thulium fiber laser ablation of kidney stones using a 50-μm-core silica optical fiber", Opt. Eng., 54, 011004 (2015). CrossRef A. Zajac et al. "Fibre lasers – conditioning constructional and technological", Bull. Pol. Ac.: Tech. 58, 491 (2010). CrossRef C. Guo, D. Shen, J. Long, and F. Wang, "High-power and widely tunable Tm-doped fiber laser at 2 \mu m", Chin. Opt. Lett. 10, 091406 (2012). CrossRef F. Liu et al. "Tandem-pumped, tunable thulium-doped fiber laser in 2.1 μm wavelength region", Opt. Express 27, 8283 (2019). CrossRef H. Ahmad, M. Z. Samion, K. Thambiratnam, and M. Yasin, "Widely Tunable Dual-Wavelength Thulium-doped fiber laser Operating in 1.8-2.0 mm Region", Optik 179, 76 (2019). CrossRef N. M. Fried, "Thulium fiber laser lithotripsy: An in vitro analysis of stone fragmentation using a modulated 110‐watt Thulium fiber laser at 1.94 µm", Lasers Surg. Med. 37, 53 (2005). CrossRef N. M. Fried, "High‐power laser vaporization of the canine prostate using a 110 W Thulium fiber laser at 1.91 μm", Lasers Surg. Med. 36, 52 (2005). CrossRef E. Lippert et al. "Polymers Designed for Laser Applications-Fundamentals and Applications", Proc. SPIE 6397, P639704 (2006). CrossRef N. Dalloz et al. "High power Q-switched Tm3+, Ho3+-codoped 2μm fiber laser and application for direct OPO pumping", Proc. SPIE 10897, 108970J (2019). CrossRef N. J. Ramírez-Martinez, M. Nunez-Velazquez, A. A. Umnikov, and J. K. Sahu, "Highly efficient thulium-doped high-power laser fibers fabricated by MCVD", Opt. Express 27, 196 (2019). CrossRef T. Ehrenreich et al. "1-kW, All-Glass Tm:fiber Laser", Proc. SPIE 7580, 758016 (2010). DirectLink L. Shah et al. "Integrated Tm:fiber MOPA with polarized output and narrow linewidth with 100 W average power", Opt. Express 20, 20558 (2012). CrossRef H. Zhen-Yue, Y. Ping, X. Qi-Rong, L. Qiang, and G. Ma-Li, "227-W output all-fiberized Tm-doped fiber laser at 1908 nm", Chin. Phys. B 23, 104206 (2014). CrossRef

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5

Li, Hao, Wenxi Pei, Wei Huang, Meng Wang, and Zefeng Wang. "Highly Efficient Nanosecond 1.7 μm Fiber Gas Raman Laser by H2-Filled Hollow-Core Photonic Crystal Fibers." Crystals 11, no. 1 (December 30, 2020): 32. http://dx.doi.org/10.3390/cryst11010032.

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We report here a high-power, highly efficient, wavelength-tunable nanosecond pulsed 1.7 μm fiber laser based on hydrogen-filled hollow-core photonic crystal fibers (HC-PCFs) by rotational stimulated Raman scattering. When a 9-meter-long HC-PCF filled with 30 bar hydrogen is pumped by a homemade tunable 1.5 μm pulsed fiber amplifier, the maximum average Stokes power of 3.3 W at 1705 nm is obtained with a slope efficiency of 84%, and the slope efficiency achieves the highest recorded value for 1.7 μm pulsed fiber lasers. When the pump pulse repetition frequency is 1.3 MHz with a pulse width of approximately 15 ns, the average output power is higher than 3 W over the whole wavelength tunable range from 1693 nm to 1705 nm, and the slope efficiency is higher than 80%. A steady-state theoretical model is used to achieve the maximum Stokes power in hydrogen-filled HC-PCFs, and the simulation results accord well with the experiments. This work presents a new opportunity for highly efficient tunable pulsed fiber lasers at the 1.7 μm band.

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6

Takahashi, Yoshitaka, and Takatoshi Oginosawa. "Tunable Fiber Laser with Scanner Mirror." Key Engineering Materials 497 (December 2011): 135–41. http://dx.doi.org/10.4028/www.scientific.net/kem.497.135.

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A wavelength-tunable laser is a powerful tool as light source for sensing and its research and development has been studied so far. In order to obtain a new tunable laser the authors have developed a tunable Er3+-doped fiber laser in Littman/Metcalf configuration, and incorporating a Galvano mirror, scanning of the lasing wavelength is demonstrated. For the emission range that a semiconductor-based light source hardly covers, a tunable Tm3+-Ho3+ fluoride fiber laser is also demonstrated.

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7

Radzi, Nurnazifah M., Amirah A. Latif, Mohammad F. Ismail, Josephine Y. C. Liew, Noor A. Awang, Han K. Lee, Fauzan Ahmad, Siti F. Norizan, and Harith Ahmad. "Tunable Spacing Dual-Wavelength Q-Switched Fiber Laser Based on Tunable FBG Device." Photonics 8, no. 12 (November 23, 2021): 524. http://dx.doi.org/10.3390/photonics8120524.

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A tunable spacing dual-wavelength Q-switched fiber laser is experimentally demonstrated based on a fiber Bragg grating tunable device incorporated in an erbium-doped fiber laser (EDFL). The system utilizes two identical fiber Bragg gratings (FBGs) at 1547.1 nm origin to enable two laser lines operation. The wavelength separations between two laser lines are controlled by fixing one of the FBGs while applying mechanical stretch and compression to the other one, using a fiber Bragg grating tunable device. The seven steps of wavelength spacing could be tuned from 0.3344 to 0.0469 nm spacing. Pulse characteristics for both close and wide spacing of dual-wavelength Q-switched fiber laser are successfully being recorded. The findings demonstrate the latest idea of dual-wavelength fiber laser based on FBG tunable device, which offers a wide range of future applications.

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8

Pei, Wenxi, Hao Li, Wei Huang, Meng Wang, and Zefeng Wang. "All-Fiber Tunable Pulsed 1.7 μm Fiber Lasers Based on Stimulated Raman Scattering of Hydrogen Molecules in Hollow-Core Fibers." Molecules 26, no. 15 (July 28, 2021): 4561. http://dx.doi.org/10.3390/molecules26154561.

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Fiber lasers that operate at 1.7 μm have important applications in many fields, such as biological imaging, medical treatment, etc. Fiber gas Raman lasers (FGRLs) based on gas stimulated Raman scattering (SRS) in hollow-core photonic crystal fibers (HC-PCFs) provide an elegant way to realize efficient 1.7 μm fiber laser output. Here, we report the first all-fiber structure tunable pulsed 1.7 μm FGRLs by fusion splicing a hydrogen-filled HC-PCF with solid-core fibers. Pumping with a homemade tunable pulsed 1.5 μm fiber amplifier, efficient 1693~1705 nm Stokes waves are obtained by hydrogen molecules via SRS. The maximum average output Stokes power is 1.63 W with an inside optical–optical conversion efficiency of 58%. This work improves the compactness and stability of 1.7 μm FGRLs, which is of great significance to their applications.

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9

Wang, Ya, Shengbao Zhan, Wenran Le, Qinghai Liu, Yuting Wang, Lin Zou, and Zhifeng Deng. "Comparison of Output Performance of Tunable Lasers with Two Different External Cavities." International Journal of Optics 2022 (August 17, 2022): 1–7. http://dx.doi.org/10.1155/2022/7829924.

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Based on the simplified model of the tunable fiber laser system, the tuning performance of the laser was analyzed. Two kinds of tunable setups were established, which are the configurations with an external cavity and the configuration of the Littrow cavity. The tuning output characteristics experimentally were analyzed by means of setups. The simulation gives the output efficiency of two tunable lasers as 40% and 30%. In the experiment, the measured slope efficiency of the two lasers was 24% and 18.3%, and the tunable range of the two lasers was 32 nm and 40 nm, respectively. Both lasers could achieve laser output with good beam quality.

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10

Hu, Zhijia, Jiangying Xia, Yunyun Liang, JianXiang Wen, Enming Miao, Jingjing Chen, Sizhu Wu, Xiaodong Qian, Haiming Jiang, and Kang Xie. "Tunable random polymer fiber laser." Optics Express 25, no. 15 (July 20, 2017): 18421. http://dx.doi.org/10.1364/oe.25.018421.

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11

Lin, H., and Y. W. Wang. "Waveband-tunable supercontinuum fiber laser." Optics Communications 333 (December 2014): 22–25. http://dx.doi.org/10.1016/j.optcom.2014.07.032.

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12

Moore, Peter J., Zachary J. Chaboyer, and Gautam Das. "Tunable dual-wavelength fiber laser." Optical Fiber Technology 15, no. 4 (August 2009): 377–79. http://dx.doi.org/10.1016/j.yofte.2009.04.001.

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13

Zhihui Fu, 傅志辉, 叶雯 Wen Ye, 杨丁中 Dingzhong Yang, and 沈永行 Yonghang Shen. "Tunable Yb-doped fiber laser with a Mach-Zenhder Interferometer." Chinese Journal of Lasers 36, no. 11 (2009): 2832–35. http://dx.doi.org/10.3788/cjl20093611.2832.

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14

Hanshuo Wu, Hanshuo Wu, Jiaxin Song Jiaxin Song, Jun Ye Jun Ye, Jiangming Xu Jiangming Xu, Hanwei Zhang Hanwei Zhang, Jinyong Leng Jinyong Leng, and Pu Zhou Pu Zhou. "Hundred-watt-level linearly polarized tunable Raman random fiber laser." Chinese Optics Letters 16, no. 6 (2018): 061402. http://dx.doi.org/10.3788/col201816.061402.

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15

Su, Yu, Jian Hua Ren, Tong Gang Zhao, Shu Qun Shen, Zheng Shan Xu, Xiao Bo Liu, and Wei Wu. "Widely Tunable Fiber Ring Laser with Narrow Linewidth and Fine Tuning Resolution Based on Laser Materials." Advanced Materials Research 496 (March 2012): 290–93. http://dx.doi.org/10.4028/www.scientific.net/amr.496.290.

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We experimentally demonstrate a tunable fiber ring laser with narrow linewidth and fine tuning resolution based on Er3+-doped fiber(EDF) laser material. A tunable fiber Bragg grating(FBG) filter is used in the system as the frequency selecting element, and a stepping motor together with a single chip acts as the precise tuning mechanism. The fiber ring laser has a narrow linewidth of ~0.07nm, a tuning resolution of ~1.5pm/pulse, an output power of ~25 mW, and a slope efficiency of ~17.9%.

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16

Michalska, Maria, Paweł Grześ, and Jacek Swiderski. "High power, 100 W-class, thulium-doped all-fiber lasers." Photonics Letters of Poland 11, no. 4 (December 31, 2019): 109. http://dx.doi.org/10.4302/plp.v11i4.953.

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In this work, sub-kilowatt, compact thulium-doped fiber laser systems, operating at a wavelength of 1940 nm, have been presented. The continuous-wave laser power generated out of a single oscillator was 90 W with a slope efficiency of 56.7%. Applying a master oscillator – power amplifier configuration, an output power of 120.5 W with a slope efficiency of 58.2% was demonstrated. These are the first results of the works aimed at developing kW-class “eye-safe” laser systems in Poland. Full Text: PDF ReferencesZ. Liu, et al., "Implementing termination analysis on quantum programming", Sci. China Inf. Sci. 62, 41301 (2019) CrossRef S. D. Jackson, A. Sabella, D.G Lancaster, "Application and Development of High-Power and Highly Efficient Silica-Based Fiber Lasers Operating at 2 μm", IEEE J. Sel. Top. Quantum Electron. 13, 567, (2007). CrossRef E. Russell, N. Kavanagh, K. Shortiss, and F. C. G. Gunning, "Development of thulium-doped fibre amplifiers for the 2μm waveband", Proc. SPIE 10683, 106832Q (2018) CrossRef P. Peterka, B. Faure, W. Blanc, M. Karásek, and B. Dussardier, "Theoretical modelling of S-band thulium-doped silica fibre amplifiers", Opt. Quantum Electron. 36, 201 (2004) CrossRef M. Eichhorn, "Pulsed 2 μm fiber lasers for direct and pumping applications in defence and security", Proc. SPIE 7836, 78360B (2010). CrossRef O. Traxer and E. X. Keller, "Thulium fiber laser: the new player for kidney stone treatment? A comparison with Holmium:YAG laser", World J. Urol. 2019 Feb 6. doi: 10.1007/s00345-019-02654-5 CrossRef S. Das, "Optical parametric oscillator: status of tunable radiation in mid-IR to IR spectral range based on ZnGeP2 crystal pumped by solid state lasers", Opt. Quant. Electron. 51, 70 (2019) CrossRef M. Michalska, P. Hlubina, and J. Swiderski, "Mid-infrared Supercontinuum Generation to ∼4.7 μm in a ZBLAN Fiber Pumped by an Optical Parametric Generator", IEEE Photon. J 9, 3200207 (2017) CrossRef https://www.ipgphotonics.com DirectLink M.D. Burns, P. C. Shardlow, P. Barua, T. L. Jefferson-Brain, J. K. Sahu, and W. A.Clarkson, "47 W continuous-wave 1726 nm thulium fiber laser core-pumped by an erbium fiber laser", Opt. Lett. 44, 5230 (2019) CrossRef S.D. Jackson, "Cross relaxation and energy transfer upconversion processes relevant to the functioning of 2 μm Tm3+-doped silica fibre lasers", Opt. Commun. 230, 197 (2004). CrossRef X. Wang, P. Zhou, X. Wang, H. Xiao, and L. Si, "102 W monolithic single frequency Tm-doped fiber MOPA", Opt. Express 21, 32386 (2013) CrossRef K. Yin, R. Zhu, B. Zhang, G. Liu, P. Zhou, and J. Hou, "300 W-level, wavelength-widely-tunable, all-fiber integrated thulium-doped fiber laser", Opt. Express 24, 11085 (2016) CrossRef G. D. Goodno, L. D. Book, and J. E. Rothenberg, "600-W, single-mode, single-frequency thulium fibre laser amplifier", Proc. SPIE 7195, 71950Y (2009). CrossRef T. Ehrenreich, R. Leveille, I. Majid, K. Tankala, G. Rines, and P. Moulton, "1-kW, all-glass Tm: fiber laser", Proc. SPIE 7580, 1 (2010) DirectLink M. Michalska et al., "Highly stable, efficient Tm-doped fiber laser—a potential scalpel for low invasive surgery", Laser Phys. Lett. 13, 115101 (2016). CrossRef

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17

Komorowski, Paweł, Krzysztof Anders, Urszula Zdulska, and Ryszard Piramidowicz. "Erbium doped ZBLAN fiber laser operating in the visible - feasibility study." Photonics Letters of Poland 9, no. 3 (September 30, 2017): 85. http://dx.doi.org/10.4302/plp.v9i3.769.

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This work is focused on developing all-fiber green laser in hybrid geometry, based on combination of Er:ZBLAN active fiber and silica fiber-based passive components of optical resonator and deploying Fiber Bragg Gratings (FBGs) as highly selective mirrors for green spectral range. The scope of work covers fundamental spectroscopic characterization of Er:ZBLAN samples, determination of key spectroscopic parameters, modelling the lasing properties and lasing experiments in different pumping geometries. Full Text: PDF ReferencesW.P. Risk, T.R. Gosnell, A.V. Nurmikko, "Compact blue-green lasers", Cambridge University Press. (2003) CrossRef J.Y. Allain, M. Monerie, and H. Poignant, "Tunable green upconversion erbium fibre laser", Electronics Lett., 28 (1992) 111-113 CrossRef Z . Luo, Q. Ruan, M. Zhong, Y. Cheng, R. Yang, B. Xu, H. Xu, Z. Cai, "Compact self-Q-switched green upconversion Er:ZBLAN all-fiber laser operating at 543.4 nm", Optics Lett. 41 (2016) 2258-2261 CrossRef D. E. McCumber, "Einstein relations connecting broadband emission and absorption spectra", Physical Review 136 (1964) 954-957 CrossRef

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18

Valiunas, Jonas K., and Gautam Das. "Tunable Single-Longitudinal-Mode High-Power Fiber Laser." International Journal of Optics 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/475056.

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We report a novel CW tunable high-power single-longitudinal-mode fiber laser with a linewidth of∼9 MHz. A tunable fiber Bragg grating provided wavelength selection over a 10 nm range. An all-fiber Fabry-Perot filter was used to increase the longitudinal mode spacing of the laser cavity. An unpumped polarization-maintaining erbium-doped fiber was used inside the cavity to eliminate mode hopping and increase stability. A maximum output power of 300 mW was produced while maintaining single-longitudinal-mode operation.

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19

NISHIZAWA, Norihiko, and Toshio GOTO. "Wavelength Tunable Ultrashort Pulse Fiber Laser." Review of Laser Engineering 29, no. 2 (2001): 84–89. http://dx.doi.org/10.2184/lsj.29.84.

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20

Sabert, Hendrik. "Tunable narrow‐band Nd3+fiber laser." Applied Physics Letters 59, no. 17 (October 21, 1991): 2067–69. http://dx.doi.org/10.1063/1.106132.

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21

Ji Zhaoyu, 吉照宇, 邓宇翔 Deng Yuxiang, and 张祖兴 Zhang Zuxing. "Tunable Multiwavelength Brillouin Random Fiber Laser." Chinese Journal of Lasers 45, no. 9 (2018): 0901002. http://dx.doi.org/10.3788/cjl201845.0901002.

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22

Němec, Michal, Jan Šulc, Michal Jelínek, Václav Kubeček, Helena Jelínková, Maxim E. Doroshenko, Olimkhon K. Alimov, Vasilii A. Konyushkin, Andrei N. Nakladov, and Vyatcheslav V. Osiko. "Thulium fiber pumped tunable Ho:CaF_2 laser." Optics Letters 42, no. 9 (April 28, 2017): 1852. http://dx.doi.org/10.1364/ol.42.001852.

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23

Ober, M. H., G. D. Sucha, C. A. C. Mendonca, T. H. Chiu, M. E. Fermann, M. Hofer, R. Hofer, D. Harter, and G. A. Reider. "Widely tunable femtosecond neodymium fiber laser." Optics Letters 20, no. 22 (November 15, 1995): 2303. http://dx.doi.org/10.1364/ol.20.002303.

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24

Shubochkin, R. L., V. A. Kozlov, A. L. G. Carter, and T. F. Morse. "Tunable thulium-doped all-fiber laser." IEEE Photonics Technology Letters 10, no. 7 (July 1998): 944–45. http://dx.doi.org/10.1109/68.681278.

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25

Jing Gao, Guanghui Yang, Xin Zou, Ming Li, Tingwu Ge, Siyuan Li, and Zhiyong Wang. "All-Fiber Tunable Supercontinuum Laser Source." IEEE Photonics Technology Letters 27, no. 14 (July 15, 2015): 1553–56. http://dx.doi.org/10.1109/lpt.2015.2429916.

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26

Popa, D., Z. Sun, T. Hasan, F. Torrisi, F. Wang, and A. C. Ferrari. "Graphene Q-switched, tunable fiber laser." Applied Physics Letters 98, no. 7 (February 14, 2011): 073106. http://dx.doi.org/10.1063/1.3552684.

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27

Fang, Nian, Lu-Tang Wang, and Zhao-Ming Huang. "DOP-tunable semiconductor fiber ring laser." Microwave and Optical Technology Letters 51, no. 7 (July 2009): 1669–71. http://dx.doi.org/10.1002/mop.24403.

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28

Dastmalchi, Mansour, and Gautam Das. "Tunable medium power multiwavelength fiber laser." Microwave and Optical Technology Letters 51, no. 10 (July 23, 2009): 2517–19. http://dx.doi.org/10.1002/mop.24648.

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29

Pei, Wenxi, Hao Li, Yulong Cui, Zhiyue Zhou, Meng Wang, and Zefeng Wang. "Narrow-Linewidth 2 μm All-Fiber Laser Amplifier with a Highly Stable and Precisely Tunable Wavelength for Gas Molecule Absorption in Photonic Crystal Hollow-Core Fibers." Molecules 26, no. 17 (September 1, 2021): 5323. http://dx.doi.org/10.3390/molecules26175323.

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In recent years, mid-infrared fiber lasers based on gas-filled photonic crystal hollow-core fibers (HCFs) have attracted enormous attention. They provide a potential method for the generation of high-power mid-infrared emissions, particularly beyond 4 μm. However, there are high requirements of the pump for wavelength stability, tunability, laser linewidth, etc., due to the narrow absorption linewidth of gases. Here, we present the use of a narrow-linewidth, high-power fiber laser with a highly stable and precisely tunable wavelength at 2 μm for gas absorption. It was a master oscillator power-amplifier (MOPA) structure, consisting of a narrow-linewidth fiber seed and two stages of Thulium-doped fiber amplifiers (TDFAs). The seed wavelength was very stable and was precisely tuned from 1971.4 to 1971.8 nm by temperature. Both stages of the amplifiers were forward-pumping, and a maximum output power of 24.8 W was obtained, with a slope efficiency of about 50.5%. The measured laser linewidth was much narrower than the gas absorption linewidth and the wavelength stability was validated by HBr gas absorption in HCFs. If the seed is replaced, this MOPA laser can provide a versatile pump source for mid-infrared fiber gas lasers.

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30

Ma, Lin, Jiang Sun, Yanhui Qi, Zexin Kang, and Shuisheng Jian. "Tunable and switchable fiber laser based on modal interference." Modern Physics Letters B 29, no. 09 (April 10, 2015): 1550033. http://dx.doi.org/10.1142/s0217984915500335.

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A tunable and switchable erbium-doped fiber (EDF) laser based on modal interference has been proposed and experimentally demonstrated in this paper. Here a core-offset structure has been used to excite the cladding modes and a segment of polarization maintaining fiber inserted in a Sagnac loop interferometer has been used as wavelength selective component. By adjusting the statement of polarization controller (PC) and the bending of the core-offset structure, a tunable and switchable fiber laser with the signal-to-noise ratio (SNR) of more than 50 dB has been achieved in this paper.

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31

Liaw, Shien-Kuei, and Guo-Sing Jhong. "Tunable Fiber Laser Using a Broad-Band Fiber Mirror and a Tunable FBG as Laser-Cavity Ends." IEEE Journal of Quantum Electronics 44, no. 6 (June 2008): 520–27. http://dx.doi.org/10.1109/jqe.2008.917783.

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32

Zhang, Yusheng. "C+L band wavelength and bandwidth tunable fiber laser incorporating carbon nanotubes." Modern Physics Letters B 34, no. 30 (July 21, 2020): 2050340. http://dx.doi.org/10.1142/s0217984920503406.

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Spectral wavelength and bandwidth tunable mode-locking ultrafast fiber laser has widespread applications in the fields of optical telecommunication, spectroscopy, pump-probe measurements, and so on. Here, we report an single-wall carbon nanotube (SWCNT)-based wavelength and bandwidth tunable mode-locked fiber laser operation in the C[Formula: see text]L band. The output spectral wavelength and bandwidth can be continuously tuned by adjusting the intra-cavity tunable filter with a wavelength tuning range spanning [Formula: see text]70 nm (from 1539.8 nm to 1610.1 nm) and bandwidth from 0.5 nm to 4.5 nm, respectively. Our results provide a compact, mode-locked fiber laser wider in tuning range than the other systems for various applications requiring variable spectral wavelength or bandwidth.

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33

Yamashita, Shinji, Yuichi Nakazaki, Ryosei Konishi, and Osamu Kusakari. "Wide and Fast Wavelength-Swept Fiber Laser Based on Dispersion Tuning for Dynamic Sensing." Journal of Sensors 2009 (2009): 1–12. http://dx.doi.org/10.1155/2009/572835.

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We have developed a unique wide and fast wavelength-swept fiber laser for dynamic and accurate fiber sensing. The wavelength tuning is based on the dispersion tuning technique, which simply modulates the loss/gain in the dispersive laser cavity. By using wideband semiconductor optical amplifiers (SOAs), the sweep range could be as wide as∼180 nm. Since the cavity contains no mechanical components, such as tunable filters, we could achieve very high sweep rate, as high as∼200 kHz. We have realized the swept lasers at three wavelength bands, 1550 nm, 1300 nm, and 800 nm, using SOAs along with erbium-doped fiber amplifiers (EDFAs), and in two laser configurations, ring and linear ones. We also succeeded in applying the swept laser for a dynamic fiber-Bragg grating (FBG) sensor system. In this paper, we review our researches on the wide and fast wavelength-swept fiber lasers.

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34

Yangbo Bai, Yangbo Bai, Wanghua Xiang Wanghua Xiang, Peng Zu Peng Zu, and Guizhong Zhang Guizhong Zhang. "Tunable dual-wavelength passively mode-locked Yb-doped fiber laser using SESAM." Chinese Optics Letters 10, no. 11 (2012): 111405–7. http://dx.doi.org/10.3788/col201210.111405.

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35

Zhu, Lianqing, Wei He, Mingli Dong, Xiaoping Lou, and Fei Luo. "Tunable multi-wavelength thulium-doped fiber laser incorporating two-stage cascaded Sagnac loop comb filter." Modern Physics Letters B 30, no. 21 (August 10, 2016): 1650292. http://dx.doi.org/10.1142/s0217984916502924.

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A tunable multi-wavelength narrow-linewidth thulium-doped fiber laser employing two-stage cascaded Sagnac loop mirrors is proposed and experimentally demonstrated. The designed fiber laser is composed of a pump source, wavelength division multiplex, circulator, thulium-doped fiber, polarization controllers (PCs), couplers and polarization-maintaining fibers (PMFs). Two cascaded Sagnac loops are used as the cavity reflector and filter, and the proposed filter is fabricated using two sections of PMFs with 2-m and 1-m lengths, respectively. In the experiment, the laser threshold is 110 mW, and laser can emit single, double, triple, quadruple and quintuple wavelengths in the spectral range of 1873–1901 nm through the simultaneous adjustment of the two PCs. The power fluctuations and 3-dB linewidth are less than 2.1 dB and 0.2 nm, respectively, over 10 min at room temperature, and the side-mode suppression ratio is greater than 20 dB. The proposed laser will be useful in various fields, such as spectral analysis, fiber sensing and optical communication.

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36

Sharbirin, Anir Syazwan, Mohammad Faizal Ismail, and Harith Ahmad. "Isolator-free, widely tunable thulium/holmium fiber laser." Malaysian Journal of Fundamental and Applied Sciences 14 (October 25, 2018): 439–42. http://dx.doi.org/10.11113/mjfas.v14n0.1273.

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An isolator-free thulium/holmium-doped fiber laser with a broadly tunable wavelength output is proposed and demonstrated for the first time. A theta resonator configuration is implemented in order to produce rectification of lasing direction without the need for an optical isolator, thus, making it a more cost-effective setup in comparison to the conventional ring resonator. Over 160 nm of wavelength tunability can be generated, which covers a huge range of the two-micron region starting from 1888 nm up to a maximum of 2048 nm. The laser exhibits excellent wavelength control with its short-range wavelength tuning capability, whereby the shortest tuning spacing obtainable is as small as ~0.1 nm. The tunable laser peaks maintain a strong optical-signal-to-noise (OSNR) value for the whole tuning range, reaching more than 60 dB, also a full-width half-maximum (FWHM) value less than ~0.2 nm with a maximum output power of 6.82 mW. The isolator-free cavity indicates a significant improvement in the slope efficiency of the laser in comparison to a ring cavity setup with similar components. The proposed laser would have substantial use as a laser seed for application in sensing and spectroscopy.

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37

Miao Xuefeng, 缪雪峰, 王天枢 Wang Tianshu, 周雪芳 Zhou Xuefang, 袁珊 Yuan Shan, 江璐彤 Jiang Lutong, and 孙玲玲 Sun Lingling. "A Tunable Multiwavelength Brillouin-Erbium Fiber Laser." Chinese Journal of Lasers 39, no. 6 (2012): 0602010. http://dx.doi.org/10.3788/cjl201239.0602010.

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38

INOUE, Akira. "Tunable Solid-state Laser. Fiber Bragg Grating." Review of Laser Engineering 23, no. 10 (1995): 880–89. http://dx.doi.org/10.2184/lsj.23.880.

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39

Ball, G. A., and W. W. Morey. "Continuously tunable single-mode erbium fiber laser." Optics Letters 17, no. 6 (March 15, 1992): 420. http://dx.doi.org/10.1364/ol.17.000420.

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40

Yanlong Shen, 沈炎龙, 顾春 Chun Gu, 许立新 Lixin Xu, 王安廷 Anting Wang, 明海 Hai Ming, 刘洋 Yang Liu, and 王小兵 Xiaobing Wang. "A novel 852-nm tunable fiber laser." Chinese Optics Letters 7, no. 11 (2009): 1022–23. http://dx.doi.org/10.3788/col20090711.1022.

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41

Shao, J. F., Q. S. Shen, Z. J. Wu, L. Zhan, S. L. Li, and Z. Q. Cao. "Fiber-ring laser with tunable optical bistability." Laser Physics 18, no. 9 (September 2008): 1048–51. http://dx.doi.org/10.1134/s1054660x08090090.

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42

Zhou, Hao, Guoying Feng, Ke Yao, Chao Yang, Jiayu Yi, and Shouhuan Zhou. "Fiber-based tunable microcavity fluidic dye laser." Optics Letters 38, no. 18 (September 10, 2013): 3604. http://dx.doi.org/10.1364/ol.38.003604.

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43

Lin, Hermann. "Waveband-tunable multiwavelength erbium-doped fiber laser." Applied Optics 49, no. 14 (May 4, 2010): 2653. http://dx.doi.org/10.1364/ao.49.002653.

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44

Ma, Chunyang, Ankita Khanolkar, and Andy Chong. "High-performance tunable, self-similar fiber laser." Optics Letters 44, no. 5 (February 27, 2019): 1234. http://dx.doi.org/10.1364/ol.44.001234.

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45

Xu, Y. Z., H. Y. Tam, W. C. Du, and M. S. Demokan. "Tunable dual-wavelength-switching fiber grating laser." IEEE Photonics Technology Letters 10, no. 3 (March 1998): 334–36. http://dx.doi.org/10.1109/68.661401.

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46

Mao, Xuefeng, Shiwei Zhao, Suzhen Yuan, Xiaofa Wang, and Peichao Zheng. "Continuously tunable wideband semiconductor fiber-ring laser." Laser Physics 27, no. 8 (July 18, 2017): 085102. http://dx.doi.org/10.1088/1555-6611/aa78dd.

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47

Ye, Jun, Jiangming Xu, Hanwei Zhang, Jian Wu, and Pu Zhou. "Wavelength-tunable Q-switched Raman fiber laser." Laser Physics 28, no. 3 (February 16, 2018): 035108. http://dx.doi.org/10.1088/1555-6611/aaa134.

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48

Martinez-Manuel, Rodolfo, Kaboko Jean-Jacques Monga, and Johan Meyer. "Wavelength Tunable Actively Q-Switched Fiber Laser." IEEE Photonics Technology Letters 33, no. 1 (January 1, 2021): 39–42. http://dx.doi.org/10.1109/lpt.2020.3043074.

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49

Michel, D., Feng Xiao, and K. Alameh. "MEMS-Based Tunable Linear-Cavity Fiber Laser." IEEE Photonics Journal 4, no. 3 (June 2012): 895–902. http://dx.doi.org/10.1109/jphot.2012.2200037.

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50

Oshiba, Saeko, Kiyoshi Nagai, Masato Kawahara, Akira Watanabe, and Yoshio Kawai. "Widely tunable semiconductor optical fiber ring laser." Applied Physics Letters 55, no. 23 (December 4, 1989): 2383–85. http://dx.doi.org/10.1063/1.102024.

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