Few-Mode Fiber Characterization System Based on the Spatially and Spectrally Imaging Technique [PDF]
Sensors, 2022 With the widespread use of few-mode fibers, mode characteristics testing becomes essential. In this paper, current few-mode fiber testing techniques are discussed, and the S2 imaging technique is chosen and demonstrated to be capable of few-mode fiber ...
Jianxun Yu, Fengze Tan, Changyuan Yu
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Fiber Residual Stress Effects on Modal Gain Equalization of Few-Mode Fiber Amplifier [PDF]
Sensors, 2023 The modal gain equalization (MGE) of few-mode fiber amplifiers (FMFAs) ensures the stability of signal transmission. MGE mainly relies on the multi-step refractive index (RI) and doping profile of few-mode erbium-doped fibers (FM-EDFs).
Li Pei +8 more
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Transverse mode coupling in monolithic few-mode fiber laser oscillators [PDF]
Light: Science & ApplicationsTransverse mode instability (TMI), induced by nonlinear thermal-optical coupling, poses a primary challenge for the power scaling of fiber lasers. In the fiber oscillator, a sealed resonant cavity, TMI could become particularly complex due to the mode ...
Binyu Rao +15 more
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Magnetic Nanoparticles Functionalized Few-Mode-Fiber-Based Plasmonic Vector Magnetometer [PDF]
Nanomaterials, 2019 In this work, we demonstrate a highly-sensitive vector magnetometer based on a few-mode-fiber-based surface plasmon resonance (SPR) sensor functionalized by magnetic nanoparticles (MNPs) in liquid.
Yaofei Chen +9 more
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The Brillouin gain of vector modes in a few-mode fiber [PDF]
Scientific Reports, 2017 In this work, we demonstrate the measurement of the Brillouin gain spectra of vector modes in a few-mode fiber for the first time using a simple heterodyne detection technique.
Prabin Pradhan +5 more
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Wideband and Low-Loss Mode Scrambler for Few-Mode Fibers Based on Distributed Multiple Point-Loads
IEEE Photonics Journal, 2021 We propose a new type of all-fiber mode scrambler for mode division multiplexed data transmission based on few mode fibers. By randomly placing multiple point-loads along the fiber length, low loss and wideband mode coupling is obtained amongst all the ...
Yaping Liu +4 more
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Few-Mode Fibers: Characterizations and Applications
2023 Optical Fiber Communications Conference and Exhibition (OFC), 2023 We report design guidelines and modal loss characterizations (light scattering and extra-loss phenomena) of few-mode fibers that allow optimizing their crosstalk, differential mode group delay and differential mode attenuation for practical applications.
Bigot, M. +4 more
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High-Order Mode Mode-Locked Fiber Laser Based on Few-Mode Saturable Absorber
IEEE Photonics Journal, 2021 We presented two kinds of high-order mode (HOM) mode-locked fiber lasers based on few-mode (FM) saturable absorbers for direct HOM oscillation. One is a ring fiber laser based on a carbon nanotube (CNT) saturable absorber (SA), in which the combination ...
Yi Huang +6 more
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Transverse Asymmetry of the Index Modulation Profile in Few-Mode Fiber Bragg Grating
Photonics, 2021 The transverse asymmetry of the index modulation profile in the asymmetric few-mode fiber Bragg grating (FM-FBG) was investigated. The transverse asymmetry of the index modulation profile will lead to mode conversion between modes with the different ...
Peihong Guan +6 more
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Strain-Insensitive Temperature Sensor Based on Few-Mode Fiber and Photonic Crystal Fiber
IEEE Photonics Journal, 2022 Based on few-mode fiber (FMF) and photonic crystal fiber (PCF), a new temperature sensor with a FMF-PCF-FMF hybrid construction has been developed. Furthermore, the sensor has a longitudinally symmetrical structure that makes it have a flexible sensor ...
Xuekai Gao +7 more
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