Увійти

Готові списки джерел за темами / Laser diode driver / Статті в журналах

Статті в журналах з теми "Laser diode driver"

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Laser diode driver.

Автор: Grafiati

Опубліковано: 28 вересня 2022

Оновлено: 28 січня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "Laser diode driver".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Chen, Fu-Zen, Yu-Cheng Song, and Fu-Shun Ho. "An Efficiency Improvement Driver for Master Oscillator Power Amplifier Pulsed Laser Systems." Processes 10, no. 6 (June 16, 2022): 1197. http://dx.doi.org/10.3390/pr10061197.

Повний текст джерела

Анотація:

The master oscillator power amplifier (MOPA) pulsed laser, one of the popular topologies for high-power fiber laser systems, is widely applied in industrial machining laser systems. In MOPA, the low-power pulsed laser, stimulated from a seed laser diode, is amplified by the high- power optical energy from pump laser diodes via the gain fiber. Generally, the high-power pump laser diodes are driven by lossy linear current drivers. The switched mode current drivers boost the driver efficiency but suffer from pulse energy consistency due to the current switching ripple. In this paper, a laser driver system that varies the switching frequency of current source to synchronize with pulsed laser repetition rate is analyzed and implemented. Experimental results are demonstrated using a 20 W pulsed fiber laser system.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Du Haiyan, 杜海艳. "A Novel Laser Diode Driver." Applied laser 30, no. 3 (2010): 214–18. http://dx.doi.org/10.3788/al20103003.0214.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

BASOV, N. G., Yu M. POPOV, V. V. BEZOTOSNY, and Kh Kh KUMYKOV. "2D high power laser diode arrays for solid-state laser driver inertial fusion energy project." Laser and Particle Beams 17, no. 3 (July 1999): 427–35. http://dx.doi.org/10.1017/s0263034699173105.

Повний текст джерела

Анотація:

2D arrays of laser diodes were developed and investigated under QCW operating conditions. Output power and energy density up to 1 kW/cm2 and 0.45 J/cm2 (at pulse duration 0.5 ms) were measured at the wavelength 810 nm. The spectral composition of radiation, shape of the output pulses, and far-field and near-field radiation zones were examined under various pumping parameters. The kinetics of the temperature profiles in monolithic QCW AlGaAs/GaAs linear bars and 2D arrays, emitting at the wavelength 810 nm was modeled numerically. Quasi-CW and CW operation under various pump parameters were considered as a function of a heat sink design. A calculation model was used to interpret the experimental dependences of the output parameters of the arrays on the pump conditions for application in the solid-state laser driver project. The limit of total power conversion efficiency of diode lasers was analyzed in respect of the threshold current density, series resistance and external differential quantum efficiency. The estimated maximum value of 75% was obtained for the present technological level of the diode lasers production. The corresponding limit of the output optical power density of 2D laser array was defined around 10 kW/cm2.

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Chang, Chun-Ming, and Tai-Shan Liao. "A novel simplified laser diode driver." Review of Scientific Instruments 72, no. 2 (2001): 1583. http://dx.doi.org/10.1063/1.1332116.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Liu, Ching-Yao, Chih-Chiang Wu, Li-Chuan Tang, Wei-Hua Chieng, Edward-Yi Chang, Chun-Yen Peng, and Hao-Chung Kuo. "Design of High Peak Power Pulsed Laser Diode Driver." Photonics 9, no. 9 (September 14, 2022): 652. http://dx.doi.org/10.3390/photonics9090652.

Повний текст джерела

Анотація:

This paper attempts to describe a laser diode driver circuit using the depletion mode gallium nitride high electron mobility transistor (D-mode GaN HEMT) to generate nanosecond pulses at a repetition rate up to 10 MHz from the vertical-cavity surface-emitting laser (VCSEL). The feature of this driver circuit is a large instantaneous laser power output designed in the most efficient way. The design specifications include a pulse duration between 10 ns and 100 ns and a peak power up to above 100 W. The pulsed laser diode driver uses the D-mode GaN HEMT, which has very small Coss difference between turn-on and turn-off states. The analysis is according to a laser diode model that is adjusted to match the VCSEL, made in National Yang Ming Chiao Tung University (NYCU). A design guide is summarized from the derivations and analysis of the proposed laser diode driver. According to the design guide, we selected the capacitor, resistor, and diode components to achieve 10 ns to 100 ns pulse duration for laser lighting. The experiment demonstrated that the maximum power-to-light efficiency can be as high as 86% and the maximum peak power can be 150 W, which matches the specifications of certain applications such as light detection and ranging (LiDAR).

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Rudd, E. P. "Laser diode driver with 5-decade range." IEEE Transactions on Instrumentation and Measurement 49, no. 1 (2000): 2–4. http://dx.doi.org/10.1109/19.836298.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Yamanaka, Masanobu, Kenta Naito, Tadashi Kanabe, Masahiro Nakatsuka, and Sadao Nakai. "Laser diode pumped solid state laser for laser fusion reactor driver." Kakuyūgō kenkyū 62, no. 2 (1989): 79–94. http://dx.doi.org/10.1585/jspf1958.62.79.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Żbik, Mateusz, and Piotr Wieczorek. "Charge-Line Dual-FET High-Repetition-Rate Pulsed Laser Driver." Applied Sciences 9, no. 7 (March 27, 2019): 1289. http://dx.doi.org/10.3390/app9071289.

Повний текст джерела

Анотація:

Most modern pulsed laser systems require versatile laser diode drivers. A state-of-the-art pulsed laser driver should provide precise peak power regulation, high repetition rate, and pulse duration control. A new, charge line dual-FET transistor circuit structure was developed to provide all these features. The pulsed modulation current is adjustable up to Imax = 1.2 A, with the laser diode forward voltage acceptable up to UF max = 20 V. The maximum repetition rate is limited by a charge line circuit to frep max = 20 MHz. Compared to the conventional single transistor drivers, the solution proposed in this paper allows a precise, high resolution width regulation to be obtained, whereas a low pulse jitter is ensured. In the solution, two separate, out-of-phase signals are used to trigger the individual Field Effect Transistors (FET). The resultant pulsed modulation current full-width-at-half-maxima (FWHM) is regulated from ~200 ps up to 2 ns. All control and timing signals are generated with a popular Field-Programmable Gate Array (FPGA) digital circuitry. The use of standard FPGA devices ensures the low cost and high reliability of the circuit, which are not available in laser drivers consisting of sophisticated analogue adjustable delay circuits.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Smolina, Е. V. "MULTIELEMENT LASER’S PUMP CURRENT FRONT SHAPING METHOD." Journal of Applied Spectroscopy 89, no. 5 (September 21, 2022): 709–13. http://dx.doi.org/10.47612/0514-7506-2022-89-5-709-713.

Повний текст джерела

Анотація:

It is shown that for reliable operation of laser diode matrices, it is important to ensure the maximum allowable, but not leading to their destruction, current input and output rate. Some of the solutions used in the design of laser diode drivers are listed in order to limit the increase in the rate of current input and output. A method for controlling the rate of rise of the laser emitter current is proposed, the essence of which is to form the leading and trailing edges of the output current of the laser driver so that its first and, at least, the second derivative are continuous, in order to avoid triggering internal mechanisms that lead to degradation of the emitter structure.

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Zhu, Yulong, Xinzhe Wang, Chenxi Zhu, Zhaoyuan Chen, Zhisheng Huang, Zhanhong Jin, Yang Li та ін. "A laser source driver in 0.18 μm SiGe BiCMOS technology for high speed quantum key distribution". AIP Advances 12, № 12 (1 грудня 2022): 125025. http://dx.doi.org/10.1063/5.0118778.

Повний текст джерела

Анотація:

Quantum key distribution (QKD) has rapidly developed recently. The repetition frequency of the QKD system increases from tens or hundreds of MHz to GHz. A laser diode (LD) operating in gain-switched mode is widely used as a weak coherent light source in a QKD system. We present an LD driver circuit fabricated in 0.18 μm SiGe heterojunction bipolar transistor bipolar complementary metal oxide semiconductor technology. The circuit can operate at frequencies up to 2.5 GHz, satisfying the requirements of high-speed laser drives in practical QKD systems. The output current of the driver circuit can reach 100 mA when driving an LD whose input equivalent resistance is ∼21 Ω. The extinction ratio of the 1550-nm distributed feedback LD light source driven by our driver circuit reaches 23 dB at the operating frequency of 2.5 GHz, meeting the requirements of QKD systems. This circuit will be used in miniaturized QKD systems.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Toci, Guido, Zeudi Mazzotta, Luca Labate, François Mathieu, Matteo Vannini, Barbara Patrizi, and Leonida A. Gizzi. "Conceptual Design of a Laser Driver for a Plasma Accelerator User Facility." Instruments 3, no. 3 (August 8, 2019): 40. http://dx.doi.org/10.3390/instruments3030040.

Повний текст джерела

Анотація:

The purpose of the European project EuPRAXIA is to realize a novel plasma accelerator user facility. The laser driven approach sets requirements for a very high performance level for the laser system: pulse peak power in the petawatt range, pulse repetition rate of several tens of Hz, very high beam quality and overall stability of the system parameters, along with 24/7 operation availability for experiments. Only a few years ago these performances were considered unrealistic, but recent advances in laser technologies, in particular in the chirped pulse amplification (CPA) of ultrashort pulses and in high energy, high repetition rate pump lasers have changed this scenario. This paper discusses the conceptual design and the overall architecture of a laser system operating as the driver of a plasma acceleration facility for different applications. The laser consists of a multi-stage amplification chain based CPA Ti:Sapphire, using frequency doubled, diode laser pumped Nd or Yb solid state lasers as pump sources. Specific aspects related to the cooling strategy of the main amplifiers, the operation of pulse compressors at high average power, and the beam pointing diagnostics are addressed in detail.

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Stöbe, K. "Very Short Pulsed High Diode Currents Generated by a Fast Laser Diod Driver." Photonics Russia, no. 6 (2018): 576–84. http://dx.doi.org/10.22184/1993-7296.2018.12.6.576.584.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Hornung, J., Z. G. Wang, W. Bronner, E. Olander, K. Köhler, P. Ganser, B. Raynor, W. Benz, and M. Ludwig. "7.4 Gbit/s monolithically integrated GaAs/AlGaAs laser diode-laser driver structure." Electronics Letters 29, no. 19 (1993): 1694. http://dx.doi.org/10.1049/el:19931127.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Zhu Tiezhu, 朱铁柱, 莫太山 Mo Taishan, and 叶甜春 Ye Tianchun. "Burst-mode laser diode driver with dual-loop power control." Infrared and Laser Engineering 46, no. 2 (2017): 205001. http://dx.doi.org/10.3788/irla201746.0205001.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Zhu Tiezhu, 朱铁柱, 莫太山 Mo Taishan, and 叶甜春 Ye Tianchun. "Burst-mode laser diode driver with dual-loop power control." Infrared and Laser Engineering 46, no. 2 (2017): 205001. http://dx.doi.org/10.3788/irla20174602.205001.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Thompson, M. T., and M. F. Schlecht. "High power laser diode driver based on power converter technology." IEEE Transactions on Power Electronics 12, no. 1 (January 1997): 46–52. http://dx.doi.org/10.1109/63.554168.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Ray, A. "Study of the frequency fluctuations of a semiconductor diode laser." Canadian Journal of Physics 86, no. 2 (February 1, 2008): 351–58. http://dx.doi.org/10.1139/p07-155.

Повний текст джерела

Анотація:

Frequency fluctuations of an inexpensive single-mode semiconductor diode laser, which operates in the 822 nm region, are investigated by direct measurement of the error signal. The linear slope of first derivative signal of a transition in the (2,1,1) vibration-rotation band of water vapour is used as a frequency discriminator. A balanced photodetector is used to reduce the intensity noise and to improve the S/N ratio. Frequency stability of the diode laser is investigated when the laser is under a free-running condition and is locked to the line center of the reference transition. An integrator is used to provide feedback voltage to the laser current driver. After frequency stabilization, a more than 60-fold improvement in long-term laser-frequency stability is attained over the performance provided by the free-running semiconductor diode laser. The frequency-noise power spectrum of the diode laser is extracted from the error signal for the Fourier-frequency range ~100 Hz. The Allan variance curve for the laser system is obtained from the frequency-noise power spectrum of the error signal by using a suitable mathematical relation under certain approximations. The extracted values of the Allan variance are compared with the theoretical τ–1 model. The experimental setup is easy to implement in graduate laboratory classes. PACS Nos.: 42.55.Px, 42.62.Fi, 33.70.Jg

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Li Tao, 李. 涛., 祝连庆 Zhu Lianqing, 刘. 锋. Liu Feng, and 张荫民 Zhang Yinmin. "Research on adjustable narrow pulse driver of laser diode with LDMOS." Infrared and Laser Engineering 45, no. 1 (2016): 0105003. http://dx.doi.org/10.3788/irla201645.0105003.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

David, Romain, Bruno Allard, Xavier Branca, and Charles Joubert. "Design of integrated laser diode driver for 3D-depth sensing applications." Microelectronics Journal 113 (July 2021): 105056. http://dx.doi.org/10.1016/j.mejo.2021.105056.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Li Tao, 李. 涛., 祝连庆 Zhu Lianqing, 刘. 锋. Liu Feng, and 张荫民 Zhang Yinmin. "Research on adjustable narrow pulse driver of laser diode with LDMOS." Infrared and Laser Engineering 45, no. 1 (2016): 105003. http://dx.doi.org/10.3788/m0001820164501.105003.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Orth, C. D., S. A. Payne, and W. F. Krupke. "A diode pumped solid state laser driver for inertial fusion energy." Nuclear Fusion 36, no. 1 (January 1996): 75–116. http://dx.doi.org/10.1088/0029-5515/36/1/i06.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Chen, Xiao-Fei, Xue-Cheng Zou, Shuang-Xi Lin, and Kai Yu. "A 1.25Gbps DC-coupled laser diode driver with VBE compensation technique." Microelectronics Journal 37, no. 11 (November 2006): 1361–65. http://dx.doi.org/10.1016/j.mejo.2006.06.010.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Huan, Wang, Wang Zhigong, Xu Jian, Wang Rong, Miao Peng, and Luo Yin. "A 1.25 Gb/s laser diode driver with pulse width optimization." Journal of Semiconductors 31, no. 9 (September 2010): 095004. http://dx.doi.org/10.1088/1674-4926/31/9/095004.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Chen, Yingmei, Yilin Zheng, and Li Zhang. "A 5 GHz linear laser diode driver for ROF transmission systems." Microwave and Optical Technology Letters 57, no. 1 (November 18, 2014): 41–45. http://dx.doi.org/10.1002/mop.28776.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Földes, I. B., and S. Szatmári. "On the use of KrF lasers for fast ignition." Laser and Particle Beams 26, no. 4 (September 18, 2008): 575–82. http://dx.doi.org/10.1017/s026303460800061x.

Повний текст джерела

Анотація:

AbstractThe KrF laser has been considered as an inertial fusion driver alternative to diode-pumped lasers. The possibilities of KrF lasers for fast ignition is supported by their short wavelength and the corresponding larger penetration depth together with the possible use of the same amplifiers for fusion driver and fast ignitor. It is shown that in the case of a fusion test facility both the energy and the intensity requirements can be fulfilled. A fast ignitor using 20 ps KrF pulses requires beam smoothing techniques after angular multiplexing due to the coherence of the beam. A multiple beam fast ignitor is suggested as an alternative in which a high number of beams of 1 ps duration are separately focused on the fuel after polarization demultiplexing. This arrangement allows even the pulse-forming of the ignitor.

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Liao, Lihuan, Jingjing Zhang, and Daming Dong. "The driver design for N2O gas detection system based on tunable interband cascade laser." E3S Web of Conferences 78 (2019): 03002. http://dx.doi.org/10.1051/e3sconf/20197803002.

Повний текст джерела

Анотація:

In this paper, the driver circuit for N2O gas detection system based on tunable interband cascade laser (ICL) is developed. Considering the influence of power supply stability on the digital-analog hybrid drive circuit of tunable diode laser absorption spectroscopy (TDALS), the high-efficiency TPS5430 is used to design the positive and negative power supply circuit. The large electrolytic capacitor + post-stage LC filter combination filter is used to effectively filter out high and low frequency ripple and switching noise. The use of thick high current trace + via + multilayer printed circuit board (PCB) design makes the line temperature rise smaller, more stable and durable, and uses high frequency shielding inductance to effectively reduce radiation interference to ensure the stability of the drive. The STM32F407, a highperformance microcontroller based on the ARM Cortex-M4 core, is used as the master control chip and generates a sawtooth scanning signal. The direct digital synthesizer (DDS) chip ICL8038 is used to generate a sinusoidal modulated signal of a specific frequency. The two signals are superimposed by a reverse addition circuit, and the laser drive signal is generated by a developed positive feedback balanced voltagecurrent conversion circuit. Experimental results show that the driver circuit can well meet the drive development requirements of N2O gas detection systems based on tunable interband cascade laser.

Стилі APA, Harvard, Vancouver, ISO та ін.

27

NAITO, Kenta, Masanobu YAMANAKA, Tadashi KANABE, Masahiro NAKATSUKA, Kunioki MIMA, and Sadao NAKAI. "Concept design of a laser diode pumped solid state laser system for a laser fusion reactor driver." Review of Laser Engineering 18, no. 8 (1990): 652–69. http://dx.doi.org/10.2184/lsj.18.8_652.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Hu, Zheng Fei, Ying Mei Chen, and Min Di Huang. "A 5GHz Analog Laser Diode Driver for Radio-over-Fiber Transmission Applications." Applied Mechanics and Materials 635-637 (September 2014): 1063–66. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1063.

Повний текст джерела

Анотація:

The design of an analog laser diode (LD) driver for 5GHz radio-over-fiber (ROF) transmission systems is presented in this paper. The proposed linear LD driver adopted a single-ended two-stage amplifier structure with the operating voltages of 1.8V and 3.3V respectively. The technique of self-biased cascade amplifier is employed to increase the gain and alleviate the danger of gate oxide breakdown. The simulation results show that the analog amplifier achieves the power gain of 35dB and the output 1dB compression point of 18dBm at 5GHz. The corresponding output modulation current is up to 50mA at the 1dB compression point. The total chip area is only 710μm×580μm with the all on chip input and output matching network, and the power consumption is 130mW.

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Matsui, H., T. Eguchi, T. Kanabe, M. Yamanaka, M. Nakatsuka, Y. Izawa, and S. Nakai. "Conceptual design of a laser-diode-pumped Nd:glass slab laser driver for inertial fusion energy." Fusion Engineering and Design 44, no. 1-4 (February 1999): 401–5. http://dx.doi.org/10.1016/s0920-3796(98)00317-2.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Ilchev, Svetozar, Rumen Andreev, and Zlatoliliya Ilcheva. "Ultra-Compact Laser Diode Driver for the Control of Positioning Laser Units in Industrial Machinery." IFAC-PapersOnLine 52, no. 25 (2019): 435–40. http://dx.doi.org/10.1016/j.ifacol.2019.12.577.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Kawashima, Toshiyuki, Takeshi Kanzaki, Ken Matsui, Yoshinori Kato, Hiroki Matsui, Tadashi Kanabe, Masanobu Yamanaka, et al. "Quasi-CW 110 kW AlGaAs Laser Diode Array Module for Inertial Fusion Energy Laser Driver." Japanese Journal of Applied Physics 40, Part 1, No. 12 (December 15, 2001): 6852–58. http://dx.doi.org/10.1143/jjap.40.6852.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Kawashima, Toshiyuki, Tadashi Kanabe, Osamu Matsumoto, Ryo Yasuhara, Hiroyuki Furukawa, Masahiro Miyamoto, Takashi Sekine, et al. "Development of Diode-Pumped Solid-State Laser HALNA for Fusion Reactor Driver." IEEJ Transactions on Electronics, Information and Systems 125, no. 2 (2005): 233–39. http://dx.doi.org/10.1541/ieejeiss.125.233.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

33

WANG, Qing, Xiao-jian TIAN, Ge WU, and Ming-yuan LUO. "Design of high-peak current and narrow pulse driver of laser diode." Journal of China Universities of Posts and Telecommunications 16 (September 2009): 82–85. http://dx.doi.org/10.1016/s1005-8885(08)60343-x.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Kawashima, Toshiyuki, Tadashi Kanabe, Osamu Matsumoto, Ryo Yasuhara, Hiroyuki Furukawa, Masahiro Miyamoto, Takashi Sekine, et al. "Development of diode-pumped solid-state laser HALNA for fusion reactor driver." Electrical Engineering in Japan 155, no. 2 (2006): 27–35. http://dx.doi.org/10.1002/eej.20288.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Levato, Tadzio, Stefano Bonora, Gabriele Grittani, Carlo Lazzarini, Muhammad Nawaz, Michal Nevrkla, Leonardo Villanova, et al. "HELL: High-Energy Electrons by Laser Light, a User-Oriented Experimental Platform at ELI Beamlines." Applied Sciences 8, no. 9 (September 5, 2018): 1565. http://dx.doi.org/10.3390/app8091565.

Повний текст джерела

Анотація:

Laser wake field acceleration (LWFA) is an efficient method to accelerate electron beams to high energy. This is a benefit in research infrastructures where a multidisciplinary environment can benefit from the different secondary sources enabled, having the opportunity to extend the range of applications that is accessible and to develop new ideas for fundamental studies. The ELI Beamline project is oriented to deliver such beams to the scientific community both for applied and fundamental research. The driver laser is a Ti:Sa diode-pumped system , running at a maximum performance of 10 Hz, 30 J, and 30 fs. The possibilities to setup experiments using different focal lengths parabolas, as well as the possibility to counter-propagate a second laser beam intrinsically synchronized, are considered in the electron acceleration program. Here, we review the laser-driven electron acceleration experimental platform under implementation at ELI Beamlines, the HELL (High-energy Electrons by Laser Light) experimental platform .

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Szilágyi, László, Guido Belfiore, Ronny Henker, and Frank Ellinger. "20–25 Gbit/s low-power inductor-less single-chip optical receiver and transmitter frontend in 28 nm digital CMOS." International Journal of Microwave and Wireless Technologies 9, no. 8 (May 2, 2017): 1667–77. http://dx.doi.org/10.1017/s1759078717000472.

Повний текст джерела

Анотація:

The design of an analog frontend including a receiver amplifier (RX) and laser diode driver (LDD) for optical communication system is described. The RX consists of a transimpedance amplifier, a limiting amplifier, and an output buffer (BUF). An offset compensation and common-mode control circuit is designed using switched-capacitor technique to save chip area, provides continuous reduction of the offset in the RX. Active-peaking methods are used to enhance the bandwidth and gain. The very low gate-oxide breakdown voltage of transistors in deep sub-micron technologies is overcome in the LDD by implementing a topology which has the amplifier placed in a floating well. It comprises a level shifter, a pre-amplifier, and the driver stage. The single-chip frontend, fabricated in a 28 nm bulk-digital complementary metal–oxide–semiconductor (CMOS) process has a total active area of 0.003 mm2, is among the smallest optical frontends. Without the BUF, which consumes 8 mW from a separate supply, the RX power consumption is 21 mW, while the LDD consumes 32 mW. Small-signal gain and bandwidth are measured. A photo diode and laser diode are bonded to the chip on a test-printed circuit board. Electro-optical measurements show an error-free detection with a bit error rate of 10−12at 20 Gbit/s of the RX at and a 25 Gbit/s transmission of the LDD.

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Naito, Kenta, Masanobu Yamanaka, Masahiro Nakatsuka, Tadashi Kanabe, Kunioki Mima, Chiyoe Yamanaka, and Sadao Nakai. "Conceptual Design Studies of a Laser Diode Pumped Solid State Laser System for the Laser Fusion Reactor Driver." Japanese Journal of Applied Physics 31, Part 1, No. 2A (February 15, 1992): 259–73. http://dx.doi.org/10.1143/jjap.31.259.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Cong, Menglong, Shanshan Zhang, Yiding Wang, Dachao Liang, and Kunpeng Zhou. "Design of a Laser Driver and Its Application in Gas Sensing." Applied Sciences 12, no. 12 (June 9, 2022): 5883. http://dx.doi.org/10.3390/app12125883.

Повний текст джерела

Анотація:

A laser driver which features high stability and a graphical user-interface was designed and used in trace gas sensing. The running of the laser driver was managed by an ARM processor which was embedded with a real-time operating system (RTOS). Through clicking on the touch screen that was configured with an emWin graphical user-interface (GUI), the parameters of the driving current can be graphically set and monitored. The circuit model of the distributed feedback laser diode (DFB-LD) was introduced into a TINA-SPICE simulation to evaluate the performance of the current source. Through simulation, the potential self-oscillation can be visually predicted, and the feedback loop can be appropriately compensated. To validate the applicability, the laser driver was used for driving a carefully selected DFB-LD and was employed in wavelength modulation spectroscopy (WMS) for CH4 detection at R(3) absorption line of the 2ν3 overtone. Under the conditions of room temperature, normal pressure and an effective absorption path of 15.4 cm, repetitive experiments were conducted using gas samples, with their concentrations ranging from 400 ppm to 1%, and the detection limit derived from the signal-to-noise ratio (SNR) was 7.2 ppm. The promising result indicates the high potential of this laser driver for use in absorption spectrum-based sensing applications.

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Arms, K. E., K. K. Gan, M. Johnson, H. Kagan, R. Kass, A. Rahimi, C. Rush, et al. "Radiation-Hard ASICs for Optical Data Transmission in the ATLAS Pixel Detector." International Journal of Modern Physics A 20, no. 16 (June 30, 2005): 3802–4. http://dx.doi.org/10.1142/s0217751x05027667.

Повний текст джерела

Анотація:

We have developed two radiation-hard ASICs for optical data transmission in the ATLAS pixel detector at the CERN Large Hadron Collider (LHC): a driver chip for a Vertical Cavity Surface Emitting Laser (VCSEL) diode for 80 Mbit/s data transmission from the detector, and a Bi -Phase Mark decoder chip to recover the control data and 40 MHz clock which is received optically by a PIN diode on the detector side. We present comprehensive results from the final design and from irradiation studies of both circuits with 24 GeV protons up to a total dose of 62 Mrad.

Стилі APA, Harvard, Vancouver, ISO та ін.

40

MATSUI, Hiroki, Takeyoshi EGUCHI, Tadashi KANABE, Masanobu YAMANAKA, Masahiro NAKATSUKA, Yasukazu IZAWA, and Sadao NAKAI. "Conceptual Design of Laser-Diode-Pumped Water-Cooled Nd:Glass Slab Laser Driver for Inertial Fusion Energy." Review of Laser Engineering 28, no. 3 (2000): 176–81. http://dx.doi.org/10.2184/lsj.28.176.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Chen, Xiao-fei, Xue-cheng Zou, Shuang-xi Lin, Zheng-lin Liu, and Hai Jin. "A 155 Mbps laser diode driver with automatic power and extinction ratio control." Journal of Zhejiang University-SCIENCE A 8, no. 8 (July 2007): 1346–50. http://dx.doi.org/10.1631/jzus.2007.a1346.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Burge, Leah, Lauryn McKenna, and Murray Korman. "Photoacoustic medical imaging demonstration using a pulsed LED." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 5 (August 1, 2021): 1756–64. http://dx.doi.org/10.3397/in-2021-1919.

Повний текст джерела

Анотація:

This demonstration of photoacoustics involves a focused light-emitting diode (LED) pulse (620 nm wavelength) which illuminates an optically absorbing target. The rapid expansion generates an ultrasonic pulse detected by an immersion transducer. An LED is a cost-effective alternative to the traditional neodymium-doped Yttrium-Aluminum Garnet (Nd:YAG) laser and laser diode- that is most effective in near-infrared. The LED is driven by a home-made MOSFET driver capable of 100 A pulses. Focused pulses illuminate a horizontal 1.2 mm capillary tube filled with Fast Green Dye. A highly-diffuse Teflon cylindrical cavity (9 cm tall, 6 cm diam) contains the mounted capillary tube. A 2.25 MHz immersion transducer with four low-noise amplifier gain blocks (combined 86 decibel gain, 0.5- 30 MHz bandwidth), detects a time-averaged signal from over 1000 trials. Comparisons are made using India ink. Earlier, T. J. Allen and P. C. Beard used 35 percent hematocrit blood in a capillary tube at a 620 nm wavelength demonstrating the feasibility of photoacoustic medical imaging of vascular systems under the skin or shallow-tissue cancerous tumors (using tomography) as an alternative to radioactive medical imaging. Our work precedes a photoacoustic tomography demonstration using three targets in an open acrylic tank.

Стилі APA, Harvard, Vancouver, ISO та ін.

43

LIANG, CHUNGUANG, QINGMING ZENG, ZHENCHANG MA, MINGWEN YUAN, and JINPING AO. "GaAs HIGH SPEED DEVICES AND CIRCUITS." International Journal of High Speed Electronics and Systems 07, no. 03 (September 1996): 447–61. http://dx.doi.org/10.1142/s0129156496000256.

Повний текст джерела

Анотація:

This paper presents the R&D of GaAs-based high speed devices and circuits at the Hebei Semiconductor Research Institute (HSRI) in China. It is concerned with low noise and medium power GaAs-MESFET MMIC and monolithic laser diode driver and preamplifier for 2.4 Gb/s fiber communication application, GaAs-based high speed digital circuits like single and dual modulus frequency divider, digital/analog convertor, shift register, HEMT and HBT integrated circuits.

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Xiao kaibo, 肖凯博, 袁晓东 Yuan Xiaodong, 蒋新颖 Jiang Xinying, 严雄伟 Yan Xiongwei, 王振国 Wang Zhenguo, 李明中 Li Mingzhong, 郑建刚 Zheng Jiangang, and 郑万国 Zheng Wanguo. "Research Status of Conceptual Design of Diode-Pumped Solid-State Laser Driver for LIFE." Laser & Optoelectronics Progress 52, no. 4 (2015): 040001. http://dx.doi.org/10.3788/lop52.040001.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Xiao Kaibo, 肖凯博, 袁晓东 Yuan Xiaodong, 蒋新颖 Jiang Xinying, 严雄伟 Yan Xiongwei, 王振国 Wang Zhenguo, 李明中 Li Mingzhong, 郑建刚 Zheng Jiangang, and 郑万国 Zheng Wanguo. "Research Status of Conceptual Designs of Diode-Pumped Solid-State Laser Driver for HiPER." Laser & Optoelectronics Progress 52, no. 8 (2015): 080005. http://dx.doi.org/10.3788/lop52.080005.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Tang Xiong-Xin, Qiu Ji-Si, Fan Zhong-Wei, Wang Hao-Cheng, Liu Yue-Liang, Liu Hao, and Su Liang-Bi. "Experimental study of diode-pumped Nd, Y:CaF2 amplifier for inertial confinement fusion laser driver." Acta Physica Sinica 65, no. 20 (2016): 204206. http://dx.doi.org/10.7498/aps.65.204206.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

47

Kurita, Takashi, Tadashi Ikegawa, Osamu Matsumoto, Ryo Yasuhara, Takashi Sekine, Toshiyuki Kawashima, Masahiro Miyamoto, Hirofumi Kan, and Yasukazu Izawa. "Large-Scale 200-kW Laser Diode Pumping Module for Inertial Fusion Energy Driver HALNA." IEEJ Transactions on Electronics, Information and Systems 128, no. 5 (2008): 707–12. http://dx.doi.org/10.1541/ieejeiss.128.707.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Hicks, James, and Gabor Patonay. "A Simple Driver for Dynamic Or Static Operation of a Laser Diode Intracavity Spectrophotometer." Instrumentation Science & Technology 18, no. 3-4 (January 1989): 213–26. http://dx.doi.org/10.1080/10739148908543708.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Abdullah, M. S., M. Z. Jamaludin, G. Witjaksono, and M. H. H. Mokhtar. "A new design of pulsed laser diode driver system for multistate quantum key distribution." Optics & Laser Technology 43, no. 5 (July 2011): 978–83. http://dx.doi.org/10.1016/j.optlastec.2010.12.002.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Chen, Ming Fei, I. Feng Li, and Chun Wei Hu. "The Driver Circuit and Focusing Lens Designed for the Laser Range-Finder." Key Engineering Materials 364-366 (December 2007): 160–65. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.160.

Повний текст джерела

Анотація:

This paper has partitioned the laser range-finder into two parts: one is the laser diode (LD) driver circuit and the other is the focusing lens. The LD’s surface temperature rise will affect the LD’s light-power simultaneously when an LD works in a steady current. For this reason, we designed a driver circuit to control the LD’s light power to be effective and so as to freely adjust the LD’s brightness. There are three parts in driver circuit: the regulated power circuits, the regulated current circuit, and the limited current circuit. This investigation used a power meter to measure the LD’s power which was relative to the surface temperature. Then the experimental results were compared with the PSpice simulation, and the differences between the result and the simulation were eventually analyzed. The limited current circuit is an important part in our systems because the LD is easily damaged when active current is unstable. Similarly, the surface temperature would be raised after the LD is working for a while which results in the circuit failure. If the LD has worked for a very long time, the heat generated in the circuit should be taken care of. Therefore, we added an automatic power control circuit (APC) into the LD driver circuit in order to reduce the impact of heat. The emitted distance of laser beam could be up to 10 meters with adjusted focusing lens. The laser spot was extended into an ellipse before focusing laser beams. Therefore, we had to put a focal lens to shape the the laser spot into a circular spot. During this experiment, the LD did not work directly without installing the heat sink. Otherwise, the high temperature would damage LD immediately.

Стилі APA, Harvard, Vancouver, ISO та ін.

Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!