Results 1 to 10 of about 318,441 (330)

Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber

open access: yesApplied 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   +4 more
doaj   +5 more sources

Few-Mode Fiber Coupling Efficiency for Free-Space Optical Communication [PDF]

open access: yesJournal of Lightwave Technology, 2021
8 pages, 8 ...
Xingjie Fan, Dawei Wang, Julian Cheng
exaly   +4 more sources

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

open access: yesMicromachines, 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
doaj   +4 more sources

High-Efficiency Coupling Method of the Gradient-Index Fiber Probe and Hollow-Core Photonic Crystal Fiber

open access: yesApplied 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   +5 more
doaj   +4 more sources

Reliability Study of Fiber Coupling Efficiency of 980 nm Semiconductor Laser

open access: yesPhotonics
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   +6 more
doaj   +4 more sources

Research on the influence of alignment error on coupling efficiency and beam quality for Gaussian beam to multimode fiber

open access: yesResults in Physics, 2019
The effect of alignment error on the coupling efficiency and beam quality of a Gaussian beam coupled into a large-core multimode fiber is studied in this paper.
Xingyang Liu   +4 more
doaj   +4 more sources

High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber

open access: yesGuangtongxin 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   +5 more
doaj   +2 more sources

Coupling efficiency of a partially coherent collimating laser from turbulent biological tissue to fiber

open access: yesResults 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   +5 more
doaj   +2 more sources

Research on Low Numerical Aperture 808 nm Fiber-Coupled Semiconductor Laser [PDF]

open access: yesMicromachines
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   +10 more
doaj   +2 more sources

Modal correction for fiber-coupling efficiency in free-space optical communication systems through atmospheric turbulence

open access: yesOptik, 2010
High-speed free-space optical communication systems have recently used fiber-optical components. The coupling efficiency with which the received laser beam can be coupled into a single-mode fiber is noticeably limited by atmospheric turbulence due to the
Xinyang Li
exaly   +2 more sources

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