Results 1 to 10 of about 37,694 (116)

Research on Optical Fiber Ring Resonator Q Value and Coupling Efficiency Optimization

Micromachines, 2023
The coupling efficiency of the fiber ring resonator has an important influence on the scale factor of the resonant fiber gyroscope. In order to improve the scale factor of the gyroscope, the coupling efficiency of the fiber ring resonator and its ...
Shengkun Li, Xiaowen Tian, Sining Tian
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Reliability Study of Fiber Coupling Efficiency of 980 nm Semiconductor Laser

Photonics
In order to improve the stability of semiconductor laser fiber coupling efficiency, based on the coupling principle, the optimal parameters for semiconductor laser fiber coupling were simulated to be θ = 45°, r = 3.25 μm, and z = 5.65 μm.
Gang Liu, Shuhao Pang, Xin Zhang, Mingzhi Tang, Lei Liang, Rui Li, Rui Huang   +6 more
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Research on Low Numerical Aperture 808 nm Fiber-Coupled Semiconductor Laser [PDF]

Micromachines
This article investigates fiber coupling techniques for low numerical aperture 808 nm semiconductor lasers. A coupling optical system combining fast-axis/slow-axis collimators (FAC/SAC) with a focusing lens was designed, achieving efficient coupling ...
Fei Lin, Qi Wu, Wei Luo, Yishui Lin, Zhaoxuan Zheng, Mingkun Yuan, Qizhi Zhang, Maodong Hu, Dongxin Xu, Guojun Liu, Yi Qu   +10 more
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Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber

Applied Sciences, 2018
We study the problem of coupling partially coherent radially polarized (PCRP) vortex beams into a single-mode optical fiber. Using the well-known concept of the cross-spectral density (CSD) matrix, we derive a general expression for the coupling ...
Xinlei Zhu, Kuilong Wang, Fei Wang, Chengliang Zhao, Yangjian Cai   +4 more
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Optical Coupling Efficiency of a Coupler with Double-Combined Collimating Lenses and Thermally Expanded Core Fibers

Micromachines, 2022
Improving the coupling efficiency of two optical signals is a hot issue, where the efficiency of optical coupling has a significant effect on the signal transmission over the fiber link.
Qi He, Zhengang Zhao, Xiaoda Ye, Chuan Luo, Dacheng Zhang, Sifei Wang, Xiaoping Xu   +6 more
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Characteristic analysis of core radius, core refractive index, mismatched phase constant and coupling efficiency about 2 × 2 fiber directional coupler based on MATLAB

Results in Optics, 2022
When two parallel waveguides are close to each other, the power of the two adjacent waveguides will be periodically converted to form a directional coupled waveguide system ().
YuCheng Li, Yang Zhang, YongTian Li, YiFeng Wu   +3 more
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High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber

Guangtongxin yanjiu, 2021
Due to the small mode field of silicon photonic chips, the large coupling loss is a road-blocker for their applications. In this work, the coupling efficiency between a silicon photonic modulator chip and a single-mode optical fiber is investigated.
Zhong-xiang TAN, Yan-feng FU, Sheng-lei HU, Ning WANG, De-chuan ZHANG, Xi XIAO   +5 more
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Coupling efficiency of a partially coherent collimating laser from turbulent biological tissue to fiber

Results in Physics, 2019
We propose a model of the fiber coupling efficiency for a partially coherent collimating laser beam propagating through turbulent biological tissue to fiber.
Qiyong Liang, Beibei Hu, Yixin Zhang, Yun Zhu, Shibao Deng, Lin Yu   +5 more
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High-Efficiency Coupling Method of the Gradient-Index Fiber Probe and Hollow-Core Photonic Crystal Fiber

Applied Sciences, 2019
A high-efficiency coupling method using the gradient-index (GRIN) fiber probe and hollow-core photonic crystal fiber (HC-PCF) is proposed to improve the response time and the sensitivity of gas sensors. A coupling efficiency model of the GRIN fiber probe
Chi Wang, Yue Zhang, Jianmei Sun, Jinhui Li, Xinqun Luan, Anand Asundi   +5 more
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Coupling Performance Enhancement of GaSb-Based Single-Transverse-Mode Lasers with Reduced Beam Divergence Obtained via near Field Modulation

Photonics, 2022
Symmetric narrow waveguide structure has been developed and fabricated to achieve low beam divergence and improved coupling performance of the 1.95 μm GaSb-based single-transverse-mode diode lasers.
Tianfang Wang, Chengao Yang, Yihang Chen, Hongguang Yu, Jianmei Shi, Xiangbin Su, Yu Zhang, Yingqiang Xu, Haiqiao Ni, Zhichuan Niu   +9 more
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