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Articoli di riviste sul tema "Multicore optical fiber"

Autore: Grafiati
Pubblicato: 7 dicembre 2024

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1

Dorosz, J. "Novel constructions of optical fibers doped with rare – earth ions". Bulletin of the Polish Academy of Sciences Technical Sciences 62, n. 4 (1 dicembre 2014): 619–26. http://dx.doi.org/10.2478/bpasts-2014-0067.

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Abstract. In the paper the research on rare-earth doped and co-doped optical fibre conducted in the Laboratory of Optical Fiber Technology at the Bialystok University of Technology is presented. Novel active fibre constructions like multicore, helical-core and side detecting ribbon/core optical fibers were developed with a targeted focus into application. First construction i.e. multicore RE doped optical fibers enable supermode generation due to phase - locking of laser radiation achieved in a consequence of exchanging radiation between the cores during the laser action. In the paper a far - field pattern of 19 - core optical fiber-doped with Yb3+ ions, registered in the MOFPA system, showed centrally located peak of relatively high radiation intensity together with smaller side-lobes. Another new construction presented here is helical-core optical fibers with the helix pitch from several mm and the off-set ranging from 10 μm to 200 μm. The properties of helical-core optical fiber co-doped with Nd3+/Yb3+ were also discussed. In the field of sensor applications novel construction of a sidedetecting luminescent optical fiber for an UV sensor application has been presented. The developed optical fiber with an active core/ribbon, made of phosphate glass doped with 0.5 mol% Tb3+ ions, was used as a UV sensing element.
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Hou, Y., e Y. Jung. "Spatially and spectrally resolved multicore optical fiber sensor with polarization sensitivity". AIP Advances 12, n. 6 (1 giugno 2022): 065023. http://dx.doi.org/10.1063/5.0095297.

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We design and fabricate a multicore fiber sensor with the end facets of cores patterned with one-dimensional sub-wavelength Au wire grid polarizers, which are aligned either radially or azimuthally on the cross section of the fiber. With a fan-out device bridging the individual cores and external single core fibers followed by a compact spectrometer, it is able to spatially detect the light intensity, spectrum, and polarization states of the incident light in a highly integrated format. These multicore fiber sensors offer a new opportunity to simultaneously measure multiple optical parameters by a single operation.
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3

Awad, Ehab. "Multicore optical fiber Y-splitter". Optics Express 23, n. 20 (22 settembre 2015): 25661. http://dx.doi.org/10.1364/oe.23.025661.

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Liñares-Beiras, Jesús, Xesús Prieto-Blanco, Daniel Balado e Gabriel M. Carral. "Autocompensating Measurement-Device-Independent quantum cryptography in few-mode optical fibers". EPJ Web of Conferences 238 (2020): 09002. http://dx.doi.org/10.1051/epjconf/202023809002.

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We present an autocompensating quantum cryptography technique for Measurement-Device-Independent quantum cryptography devices with different kind of optical fiber modes. We center our study on collinear spatial modes in few-mode optical fibers by using both fiber and micro-optical components. We also indicate how the obtained results can be easily extended to polarization modes in monomode optical fibers and spatial codirectional modes in multicore optical fibers.
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Sasho, Seiji, Satoshi Takahashi, Okihiro Sugihara e Maki Suemitsu. "Optical Coupler With Multicore Plastic Optical Fiber". IEEE Photonics Technology Letters 29, n. 8 (15 aprile 2017): 659–62. http://dx.doi.org/10.1109/lpt.2017.2677478.

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6

MASUDA, Hiroji. "Multicore Optical Fiber Amplifi cation Technology". Review of Laser Engineering 41, n. 6 (2013): 416. http://dx.doi.org/10.2184/lsj.41.6_416.

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7

Villatoro, Joel, Enrique Antonio-Lopez, Axel Schülzgen e Rodrigo Amezcua-Correa. "Miniature multicore optical fiber vibration sensor". Optics Letters 42, n. 10 (12 maggio 2017): 2022. http://dx.doi.org/10.1364/ol.42.002022.

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8

Idrisov, Ravil, Adrian Lorenz, Manfred Rothhardt e Hartmut Bartelt. "Composed Multicore Fiber Structure for Extended Sensor Multiplexing with Fiber Bragg Gratings". Sensors 22, n. 10 (19 maggio 2022): 3837. http://dx.doi.org/10.3390/s22103837.

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A novel multicore optical waveguide component based on a fiber design optimized towards selective grating inscription for multiplexed sensing applications is presented. Such a fiber design enables the increase in the optical sensor capacity as well as extending the sensing length with a single optical fiber while preserving the spatial sensing resolution. The method uses a multicore fiber with differently doped fiber cores and, therefore, enables a selective grating inscription. The concept can be applied in a draw tower inscription process for an efficient production of sensing networks. Along with the general concept, the paper discusses the specific preparation of the fiber-based sensing component and provides experimental results showing the feasibility of such a sensing system.
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9

Barrera, David, Javier Madrigal e Salvador Sales. "Tilted fiber Bragg gratings in multicore optical fibers for optical sensing". Optics Letters 42, n. 7 (31 marzo 2017): 1460. http://dx.doi.org/10.1364/ol.42.001460.

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Rojas-Rojas, Santiago, Daniel Martínez, Kei Sawada, Luciano Pereira, Stephen P. Walborn, Esteban S. Gómez, Nadja K. Bernardes e Gustavo Lima. "Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers". Quantum 8 (12 agosto 2024): 1436. http://dx.doi.org/10.22331/q-2024-08-12-1436.

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With the advent of quantum technology, the interest in communication tasks assisted by quantum systems has increased both in academia and industry. Nonetheless, the transmission of a quantum state in real-world scenarios is bounded by environmental noise, so that the quantum channel is an open quantum system. In this work, we study a high-dimensional open quantum system in a multicore optical fiber by characterizing the environmental interaction as quantum operations corresponding to probabilistic phase-flips. The experimental platform is currently state-of-the-art for quantum information processing with multicore fibers. At a given evolution stage we observe a non-Markovian behaviour of the system, which is demonstrated through a proof-of-principle implementation of the Quantum Vault protocol. A better understanding of phase-noise in multicore fibers will improve several real-world communication protocols, since they are a prime candidate to be adopted in future telecom networks.
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11

Alonso-Murias, Monserrat C., David Monzón-Hernández, Osvaldo Rodríguez-Quiroz, J. Enrique Antonio-Lopez, Axel Schülzgen, Rodrigo Amezcua-Correa e Joel Villatoro. "Long-range multicore optical fiber displacement sensor". Optics Letters 46, n. 9 (30 aprile 2021): 2224. http://dx.doi.org/10.1364/ol.421004.

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Egorova, Olga, Maksim Astapovich, Sergei Semenov e Mikhail Salganskii. "MULTICORE OPTICAL FIBER WITH RECTANGULAR CROSS-SECTION". Applied photonics 3, n. 1 (6 aprile 2016): 1–9. http://dx.doi.org/10.15593/2411-4367/2016.01.02.

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Mohit, Farhad, Armando Ricciardi, Andrea Cusano e Antonello Cutolo. "Tapered multicore optical fiber probe for optogenetics". Results in Optics 4 (agosto 2021): 100109. http://dx.doi.org/10.1016/j.rio.2021.100109.

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14

Semjonov, S. L., e O. N. Egorova. "Reliability of multicore optical fibers in fiber-optic delay lines". Bulletin of the Lebedev Physics Institute 44, n. 11 (novembre 2017): 332–35. http://dx.doi.org/10.3103/s1068335617110057.

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15

Budinski, Vedran, e Denis Donlagic. "Miniature Twist/Rotation Fabry Perot Sensor Based on a Four-Core Fiber". Proceedings 2, n. 13 (11 dicembre 2018): 1091. http://dx.doi.org/10.3390/proceedings2131091.

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This paper presents a miniature Fabry Perot twist/rotation sensor. The presented sensor consists of a single lead-in multicore fiber, which has four eccentrically positioned cores, a special asymmetrical microstructure, similar to a truncated cylinder, and an inline semi reflective mirror, all packed in a glass capillary housing. The perpendicular cut lead-in multicore fiber and the inline semi reflective mirror form four Fabry-Perot cavities. The optical path length of each Fabry-Perot interferometer is defined by the distance between mirrors, refractive index and twist/rotation angle of the microstructure in relation to the core positions in the lead in multicore fiber. Optical paths of Fabry-Perot Interferometers are modulated by a structure’s twist/rotation, change of structure length, or change of temperature. Each of these parameters modulate the optical path length of the individual interferometers in their own separate fashion, thus allowing independent measurements of twist/rotation, length/strain and temperature.
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16

Sasaki, Yusuke, Ryohei Fukumoto, Katsuhiro Takenaga, Shogo Shimizu e Kazuhiko Aikawa. "Optical-Fiber Cable Employing 200-μm-Coated Four-Core Multicore Fibers". Journal of Lightwave Technology 40, n. 5 (1 marzo 2022): 1560–66. http://dx.doi.org/10.1109/jlt.2022.3144505.

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17

Saitoh, Kunimasa, e Shoichiro Matsuo. "Multicore fibers for large capacity transmission". Nanophotonics 2, n. 5-6 (16 dicembre 2013): 441–54. http://dx.doi.org/10.1515/nanoph-2013-0037.

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AbstractWe experience Internet traffic growth of 100 times every 10 years. However, the capacity of existing standard single-mode fiber is approaching its fundamental limit regardless of significant realization of transmission technologies which allow for high spectral efficiencies. Space division multiplexing (SDM) based on multicore fibers (MCFs) has emerged as a solution to the problem of saturation of the capacity of optical transmission systems. This article presents the recent progress on the MCFs for future large capacity long-distance transmission systems. In MCFs, there is a tradeoff relationship between low crosstalk and high multiplicity, therefore the maximum number of cores and the core arrangement have to be carefully determined based on the required crosstalk level and core size. The state-of-the-art of fabricated MCFs and the transmission experiments using MCFs are reviewed. The current maximum capacity-distance product in MCF transmission is 368.2 (184.1+184.1) Pb/s/fiber km with the relative spatial efficiency of 4.7 compared with a standard single-mode fiber. In order to increase the spatial efficiency as well as the capacity-distance product further in MCFs, the possibility of heterogeneous MCFs and few-mode MCFs is also presented.
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18

NAGASE, Ryo, Katsuyoshi SAKAIME, Kengo WATANABE e Tsunetoshi SAITO. "MU-Type Multicore Fiber Connector". IEICE Transactions on Electronics E96.C, n. 9 (2013): 1173–77. http://dx.doi.org/10.1587/transele.e96.c.1173.

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19

Lanziano, Liora, Ilay Sherf e Dror Malka. "A 1 × 8 Optical Splitter Based on Polycarbonate Multicore Polymer Optical Fibers". Sensors 24, n. 15 (5 agosto 2024): 5063. http://dx.doi.org/10.3390/s24155063.

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Visible light communication (VLC) is becoming more relevant due to the accelerated advancement of optical fibers. Polymer optical fiber (POF) technology appears to be a solution to the growing demand for improved transmission efficiency and high-speed data rates in the visible light range. However, the VLC system requires efficient splitters with low power losses to expand the optical energy capability and boost system performance. To solve this issue, we propose an effective 1 × 8 optical splitter based on multicore polycarbonate (PC) POF technology suitable for functioning in the green-light spectrum at a 530 nm wavelength. The new design is based on replacing 23 air-hole layers with PC layers over the fiber length, while each PC layer length is suitable for the light coupling of the operating wavelength, which allows us to set the right size of each PC layer between the closer PC cores. To achieve the best result, the key geometrical parameters were optimized through RSoft Photonics CAD suite software that utilized the beam propagation method (BPM) and analysis using MATLAB script codes for finding the tolerance ranges that can support device fabrication. The results show that after a light propagation of 2 mm, an equally green light at a 530 nm wavelength is divided into eight channels with very low power losses of 0.18 dB. Additionally, the splitter demonstrates a large bandwidth of 25 nm and stability with a tolerance range of ±8 nm around the operated wavelength, ensuring robust performance even under laser drift conditions. Furthermore, the splitter can function with 80% and above of the input signal power around the operated wavelength, indicating high efficiency. Therefore, the proposed device has a great potential to boost sensing detection applications, such as Raman spectroscopic and bioengineering applications, using the green light.
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20

Egorova, O. N., M. E. Belkin, D. A. Klushnik, S. G. Zhuravlev, M. S. Astapovich e S. L. Semojnov. "Microwave signal delay line based on multicore optical fiber". Physics of Wave Phenomena 25, n. 4 (ottobre 2017): 289–92. http://dx.doi.org/10.3103/s1541308x17040082.

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21

Villatoro, Joel, Amy Van Newkirk, Enrique Antonio-Lopez, Joseba Zubia, Axel Schülzgen e Rodrigo Amezcua-Correa. "Ultrasensitive vector bending sensor based on multicore optical fiber". Optics Letters 41, n. 4 (11 febbraio 2016): 832. http://dx.doi.org/10.1364/ol.41.000832.

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22

Macho, Andres, Maria Morant e Roberto Llorente. "Next-Generation Optical Fronthaul Systems Using Multicore Fiber Media". Journal of Lightwave Technology 34, n. 20 (15 ottobre 2016): 4819–27. http://dx.doi.org/10.1109/jlt.2016.2573038.

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23

Zhu, B., T. F. Taunay, M. F. Yan, J. M. Fini, M. Fishteyn, E. M. Monberg e F. V. Dimarcello. "Seven-core multicore fiber transmissions for passive optical network". Optics Express 18, n. 11 (11 maggio 2010): 11117. http://dx.doi.org/10.1364/oe.18.011117.

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24

Coquoz, Olivier, Ramiro Conde, Fatemeh Taleblou e Christian Depeursinge. "Performances of endoscopic holography with a multicore optical fiber". Applied Optics 34, n. 31 (1 novembre 1995): 7186. http://dx.doi.org/10.1364/ao.34.007186.

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Gadalla, Mahmoud, Veronique Francois e Bora Ung. "Realization of Multicore Fiber Reconfigurable Optical Add–Drop Multiplexer". IEEE Photonics Technology Letters 30, n. 3 (1 febbraio 2018): 281–84. http://dx.doi.org/10.1109/lpt.2017.2785310.

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26

Shashidharan, Sreenesh, Forest Zhu e Yang Yang. "Microstructured Multicore Polymer Optical Fiber Temperature-insensitive Stress Sensor". Optik 186 (giugno 2019): 458–63. http://dx.doi.org/10.1016/j.ijleo.2018.12.102.

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27

Sorokin, Arseny A., Elena A. Anashkina, Joel F. Corney, Vjaceslavs Bobrovs, Gerd Leuchs e Alexey V. Andrianov. "Numerical Simulations on Polarization Quantum Noise Squeezing for Ultrashort Solitons in Optical Fiber with Enlarged Mode Field Area". Photonics 8, n. 6 (18 giugno 2021): 226. http://dx.doi.org/10.3390/photonics8060226.

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Broadband quantum noise suppression of light is required for many applications, including detection of gravitational waves, quantum sensing, and quantum communication. Here, using numerical simulations, we investigate the possibility of polarization squeezing of ultrashort soliton pulses in an optical fiber with an enlarged mode field area, such as large-mode area or multicore fibers (to scale up the pulse energy). Our model includes the second-order dispersion, Kerr and Raman effects, quantum noise, and optical losses. In simulations, we switch on and switch off Raman effects and losses to find their contribution to squeezing of optical pulses with different durations (0.1–1 ps). For longer solitons, the peak power is lower and a longer fiber is required to attain the same squeezing as for shorter solitons, when Raman effects and losses are neglected. In the full model, we demonstrate optimal pulse duration (~0.4 ps) since losses limit squeezing of longer pulses and Raman effects limit squeezing of shorter pulses.
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Chuncan, Wang, Zhang Fan, Liu Chu e Jian Shuisheng. "Microstructured optical fiber for in-phase mode selection in multicore fiber lasers". Optics Express 16, n. 8 (4 aprile 2008): 5505. http://dx.doi.org/10.1364/oe.16.005505.

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Shams, S. M. Waquar, Md Jakaria, Md Sohel Mahmud Sher, Shakila Naznin e S. M. Saiful Alom. "Design of low crosstalk homogeneous multicore few mode fiber for future high-capacity optical transmission". Computer Science and Engineering Research 01, n. 01 (16 marzo 2024): 3–8. http://dx.doi.org/10.69517/cser.2024.01.01.0002.

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Many researches are diligently striving to develop a multi-core optical fiber with minimal signal distortion and reduced issues. The current study proposed few designs for homogeneous multicore few mode fiber which is characterized by the combination of high index ring and trench. This study also added four air holes surrounding each core. We considered pure silica for both the outer clad and the inner clad of the fiber. To calculate the crosstalk, a two-core model was used and the mode coupling coefficient was determined using coupled-mode and couple-power theory. For the current work we considered only the fundamental mode (LP01) to compute the crosstalk between neighboring cores. The proposed structure was simulated using the wave optics module of COMSOL Multiphysics (Version 6.1), a well-known commercial software tool based on finite element method (FEM). MATLAB (Version R2018a) was used to calculate the mode coupling coefficient and crosstalk after extracting the mode field data from COMSOL. Obtained results revealed that the proposed structure can offer lower crosstalk which was attractive for future high-capacity fiber optic communication using multicore fiber technology.
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Wang, Wei, Shi Qiu, Haidong Xu, Tianxu Lin, Fanchao Meng, Ying Han, Yuefeng Qi, Chao Wang e Lantian Hou. "Trench-Assisted Multicore Fiber with Single Supermode Transmission and Nearly Zero Flattened Dispersion". Applied Sciences 8, n. 12 (3 dicembre 2018): 2483. http://dx.doi.org/10.3390/app8122483.

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A trench-assisted multicore fiber (TA-MCF) with single-supermode transmission and nearly zero flattened dispersion is proposed herein. By adding a simplified microstructure cladding with only one ring of low-index inclusions on the basis of the multicore fiber, the microstructure cladding and mode-coupling mechanism were jointly employed into the TA-MCF to modulate light transmission. This guarantees that the TA-MCFs had sufficient capability for wideband dispersion management when only pure, germanium-doped, and fluorine-doped silica glass with low index differences were chosen to form the TA-MCF. Analyses also revealed that the TA-MCFs have the merits of shorter cut-off wavelength and flatter-top optical intensity distribution compared with traditional multicore fibers. After the investigation of the structural parameters’ influences on the dispersion of the fundamental supermode, two TA-MCFs with single-supermode transmission and nearly zero flattened dispersion were designed. For the seven-core TA-MCF, the dispersion varying from −0.46 to 1.35 ps/(nm·km) in the wavelength range of 1.50 to 2.04 μm, with bending loss as low as 0.085 dB/km and 35-mm bending radius at 1550 nm was achieved with index difference less than 0.015. The TA-MCFs proposed herein have the advantages of being a quasi-single material, with an all solid scheme and simplified structure.
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Li, Zequan, Jiantao Liu, Changming Xia, Zhiyun Hou e Guiyao Zhou. "Supermode Characteristics of Nested Multiple Hollow-Core Anti-Resonant Fibers". Photonics 9, n. 11 (29 ottobre 2022): 816. http://dx.doi.org/10.3390/photonics9110816.

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Mode-division multiplexing (MDM) can achieve ultra-high data capacity in optical fiber communication. Several impressive works on multicore fiber (MCF), multi-mode fiber, and few-mode multicore fiber have made significant achievements in MDM. However, none of the previous works can simultaneously maintain the transmission loss, chromatic dispersion (CD), and differential group delay (DGD) at a relatively low level. A nested multiple hollow-core anti-resonant fiber (NMH-ARF) has significant potential for applications in MDM. This study proposes a novel NMH-ARF with its structural design based on the traditional single-core nested anti-resonant fiber. We increased the number of nodes between capillaries. By changing the position of the nested tubes, several interconnected areas form when a single core is separated. We investigated the mode-coupling theory and transmission characteristics of this fiber. This fiber structure showed a low sensitivity to bending and achieved a super-low DGD and a super-low confinement loss (CL) at a wavelength of 1.55 µm while keeping CD relatively low.
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Zhang, Shuanglu, Atsushi Okamoto, Yuta Abe, Ryo Watanabe, Akihisa Tomita, Daiki Soma, Yuta Wakayama e Takehiro Tsuritani. "Spatial-light-modulator-based optical-fiber joint switch for few-mode multicore fibers". Optics Express 29, n. 24 (8 novembre 2021): 39096. http://dx.doi.org/10.1364/oe.443033.

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Vallés, Juan A., e David Benedicto. "Optimized active multicore fiber bending sensor". Optical Materials 87 (gennaio 2019): 53–57. http://dx.doi.org/10.1016/j.optmat.2018.06.002.

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Astapovich, M. S., O. N. Egorova e S. L. Semenov. "Bending dependence of optical delay difference between multicore fiber cores". Bulletin of the Lebedev Physics Institute 43, n. 12 (dicembre 2016): 361–64. http://dx.doi.org/10.3103/s1068335616120058.

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Guerrero, Luis Gonzalez, Maria Morant, Tongyun Li, Martyn J. Fice, Alwyn J. Seeds, Roberto Llorente, Ian H. White, Richard V. Penty e Cyril C. Renaud. "Integrated Wireless-Optical Backhaul and Fronthaul Provision Through Multicore Fiber". IEEE Access 8 (2020): 146915–22. http://dx.doi.org/10.1109/access.2020.3014702.

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Westbrook, Paul S., Tristan Kremp, Kenneth S. Feder, Wing Ko, Eric M. Monberg, Hongchao Wu, Debra A. Simoff, Thierry F. Taunay e Roy M. Ortiz. "Continuous Multicore Optical Fiber Grating Arrays for Distributed Sensing Applications". Journal of Lightwave Technology 35, n. 6 (15 marzo 2017): 1248–52. http://dx.doi.org/10.1109/jlt.2017.2661680.

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Deakin, Callum, Michael Enrico, Nick Parsons e Georgios Zervas. "Design and Analysis of Beam Steering Multicore Fiber Optical Switches". Journal of Lightwave Technology 37, n. 9 (1 maggio 2019): 1954–63. http://dx.doi.org/10.1109/jlt.2019.2896318.

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Zhan, Yuxin, Qiaoqiao Liu, Shengfei Feng, Jiasheng Ye, Xinke Wang, Wenfeng Sun e Yan Zhang. "Photonic molecules stacked on multicore optical fiber for vapor sensing". Applied Physics Letters 117, n. 17 (26 ottobre 2020): 171107. http://dx.doi.org/10.1063/5.0025261.

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Chunxia, Yue, Ding Hui, Ding Wei e Xu Chaowei. "Weakly-coupled multicore optical fiber taper-based high-temperature sensor". Sensors and Actuators A: Physical 280 (settembre 2018): 139–44. http://dx.doi.org/10.1016/j.sna.2018.07.016.

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Pytel, Anna, Marek Napierała, Łukasz Szostkiewicz, Łukasz Ostrowski, Michał Murawski, Paweł Mergo e Tomasz Nasiłowski. "Optical power 1 × 7 splitter based on multicore fiber technology". Optical Fiber Technology 37 (settembre 2017): 1–5. http://dx.doi.org/10.1016/j.yofte.2017.06.002.

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41

Gelkop, Bar, Linoy Aichnboim e Dror Malka. "RGB wavelength multiplexer based on polycarbonate multicore polymer optical fiber". Optical Fiber Technology 61 (gennaio 2021): 102441. http://dx.doi.org/10.1016/j.yofte.2020.102441.

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Novack, Ari, David D’Annunzio, Ekin Doğuş Çubuk, Naci Inci e Lynne Molter. "Three-dimensional phase step profilometry with a multicore optical fiber". Applied Optics 51, n. 8 (5 marzo 2012): 1045. http://dx.doi.org/10.1364/ao.51.001045.

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Goyal, Shivani, Rajinder S. Kaler e Hardeep Singh. "Performance analysis of multicore multimode fiber for passive optical network". Microwave and Optical Technology Letters 62, n. 9 (24 aprile 2020): 3030–37. http://dx.doi.org/10.1002/mop.32383.

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Rabenandrasana, Joscelin, Alexander I. Zaitsev, Alexander L. Zubilevich e Margarita N. Voronkova. "EXPERIMENTAL STUDIES OF MULTICORE OPTICAL FIBER DURING TRANSMISSION CHARACTERISTICS OF CLASSICAL AND QUANTUM CHANNELS". SYNCHROINFO JOURNAL 9, n. 3 (2023): 2–8. http://dx.doi.org/10.36724/2664-066x-2023-9-3-2-8.

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Today, it is not possible to abandon modern sources of information; with such rapid development of technology, we need to analyze large amounts of data. To a greater extent, applications that require speed and volume of transported information are responsible for the increase in transmitted data, such as streaming and cloud data processing services, as well as traffic transfer between data centers. The experimental part of the research involves several schemes for distributing a quantum channel inside a multi-core fiber, as well as different models for placing classical channels. To transmit the quantum channel, scientific and educational complexes developed by the Qrate company were used; the transmission of the quantum channel was implemented based on the BB84 protocol. The article analyzes experimental studies on the parallel transmission of three quantum channels in a multi-core optical fiber with satisfaction of the quantum bit error rate and key length, as well as a study of the influence of classical power on the transmission of a quantum channel along the adjacent core of the fiber under study. Such research provides a new direction for the development of microstructured fibers specifically for the needs of quantum communications.
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45

ZHENG Jinhu, 郑金虎, 徐炳生 XU Bingshen, 沈赫男 SHEN Henan, 于飞 YU Fei e 陈建 CHEN Jian. "应用于相干成像的一种螺旋多芯光纤设计". ACTA PHOTONICA SINICA 53, n. 1 (2024): 0106001. http://dx.doi.org/10.3788/gzxb20245301.0106001.

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46

Bylina, M., e L. Gultyaeva. "Multi-Core Optical Fiber with Stepped Single-Mode Cores. Part 1. Insulation with Solid Clads". Proceedings of Telecommunication Universities 8, n. 4 (10 gennaio 2023): 28–38. http://dx.doi.org/10.31854/1813-324x-2022-8-4-28-38.

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An optical fiber with several unrelated cores inside a common clad (multi-core fiber) is used to increase the capacity of linear paths of communication systems. The number of cores in one fiber is limited by mutual influences between them, to reduce which various design solutions are used. The aim of the work is to compare various multicore fibers and identify structures that allow placing the largest number of cores in a common shell with a standard diameter of 125 microns. In the first part of this paper, modeling of single-mode fibers with cores isolated by additional solid shells is carried out. As a result of modeling, the characteristics of the fundamental modes of the cores of each fiber are calculated – the distribution of the electric field strength, chromatic dispersion and the diameter of the field of the fundamental mode, a technique is proposed and an assessment of mutual influences is carried out, the maximum possible number of cores is determined. It is shown that the insulating clad reduces mutual influences and allows increasing the number of cores by reducing the distance between them.
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47

Jiang, Jing, e Makoto Tsubokawa. "Evaluation of optical MIMO transmissions through multicore fiber links with an optical switch". Optics Communications 463 (maggio 2020): 125381. http://dx.doi.org/10.1016/j.optcom.2020.125381.

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48

Anashkina, Elena A., e Alexey V. Andrianov. "Design and Dispersion Control of Microstructured Multicore Tellurite Glass Fibers with In-Phase and Out-of-Phase Supermodes". Photonics 8, n. 4 (8 aprile 2021): 113. http://dx.doi.org/10.3390/photonics8040113.

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High nonlinearity and transparency in the 1–5 μm spectral range make tellurite glass fibers highly interesting for the development of nonlinear optical devices. For nonlinear optical fibers, group velocity dispersion that can be controlled by microstructuring is also of great importance. In this work, we present a comprehensive numerical analysis of dispersion and nonlinear properties of microstructured two-, four-, six-, and eight-core tellurite glass fibers for in-phase and out-of-phase supermodes and compare them with the results for one-core fibers in the near- and mid-infrared ranges. Out-of-phase supermodes in tellurite multicore fibers are studied for the first time, to the best of our knowledge. The dispersion curves for in-phase and out-of-phase supermodes are shifted from the dispersion curve for one-core fiber in opposite directions; the effect is stronger for large coupling between the fields in individual cores. The zero dispersion wavelengths of in-phase and out-of-phase supermodes shift to opposite sides with respect to the zero-dispersion wavelength of a one-core fiber. For out-of-phase supermodes, the dispersion can be anomalous even at 1.55 μm, corresponding to the operating wavelength of Er-doped fiber lasers.
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49

Mahdiraji, Ghafour Amouzad, Fatemeh Amirkhan, Desmond M. Chow, Zahra Kakaie, Poh Soo Yong, Katrina D. Dambul e Faisal Rafiq Mahamd Adikan. "Multicore Flat Fiber: A New Fabrication Technique". IEEE Photonics Technology Letters 26, n. 19 (1 ottobre 2014): 1972–74. http://dx.doi.org/10.1109/lpt.2014.2343637.

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50

Gene, Joan M., e Peter J. Winzer. "A Universal Specification for Multicore Fiber Crosstalk". IEEE Photonics Technology Letters 31, n. 9 (1 maggio 2019): 673–76. http://dx.doi.org/10.1109/lpt.2019.2903717.

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