Results 41 to 50 of about 479,261 (393)

3 W average-power high-order mode pulse in dissipative soliton resonance mode-locked fiber laser

Nanophotonics, 2021
Recently high-order modes (HOMs) lasers have been extensively investigated due to their potential applications in mode-division multiplexing. In this paper, we present two schemes of generating HOMs from the mode-locked fiber lasers (MLFLs) in the ...
Wang Longtao, Xu Jiangtao, Lu Jiafeng, Teng Linping, Luo Zhengqian, Pang Fufei, Zeng Xianglong   +6 more
doaj   +1 more source

True Phase Measurement of Distributed Vibration Sensors Based on Heterodyne $\varphi $-OTDR

IEEE Photonics Journal, 2018
We demonstrate a method to truly measure the phase change originated from external vibration by heterodyne phase-sensitive optical time-domain reflectometer ($\varphi $ -OTDR).
Huanhuan Liu, Fufei Pang, Longbao Lv, Xuanwei Mei, Yingxiong Song, Jian Chen, Tingyun Wang   +6 more
doaj   +1 more source

Low-Complexity Sampling Frequency Offset Estimation and Compensation Scheme for OFDM-Based UWOC System

Photonics, 2022
In this paper, a simple sampling frequency offset (SFO) estimation and compensation scheme based on two phase-conjugated pilots is proposed and experimentally demonstrated in an OFDM-based underwater wireless optical communication (UWOC) system.
Hu Li, Tianyang Chen, Zhijie Wang, Bingyao Cao, Yingchun Li, Junjie Zhang   +5 more
doaj   +1 more source

Tunable single-longitudinal-mode fiber optical parametric oscillator with saturable-absorber-based auto-tracking filter [PDF]

, 2010
A tunable single-longitudinal-mode (SLM) fiber optical parametric oscillator is demonstrated by using a subring cavity and a fiber loop mirror incorporated with a saturable absorber. It can provide dual-wavelength SLM output.
Cheung, KKY, Wong, KKY, Xu, X, Yang, S, Zhou, Y   +4 more
core   +1 more source

Optical multiplexing techniques and their marriage for on-chip and optical fiber communication: a review

Opto-Electronic Advances, 2020
Herein, an attention-grabbing and up-to-date review related to major multiplexing techniques is presented which includes wavelength division multiplexing (WDM), polarization division multiplexing (PDM), space division multiplexing (SDM), mode division ...
S. Khonina, N. Kazanskiy, M. A. Butt, S. Karpeev   +3 more
semanticscholar   +1 more source

Seven-Ring-Core Erbium-Doped Fiber for OAM-MDM Amplification

IEEE Photonics Journal, 2023
Orbital angular momentum (OAM) mode division multiplexing (MDM) amplification in a seven-ring-core erbium-doped fiber (7-RC-EDF) has been experimentally demonstrated, in which the 1st–4th order OAM modes within each core of the 7-RC-EDF can be ...
Qi Jiang, Xiaobo Xue, Fufei Pang, Liang Zhang, Mengshi Zhu, Heiming Wei, Cheng Du, Wei Li, Tingyun Wang   +8 more
doaj   +1 more source

A survey on fiber nonlinearity compensation for 400 Gbps and beyond optical communication systems

, 2017
Optical communication systems represent the backbone of modern communication networks. Since their deployment, different fiber technologies have been used to deal with optical fiber impairments such as dispersion-shifted fibers and dispersion ...
Amari, Abdelkerim, Ciblat, Philippe, Dobre, Octavia A., Jaouën, Yves, Kumar, O. S. Sunish, Venkatesan, Ramachandran   +5 more
core   +1 more source

Diffraction-limit-breaking digital projection lithography via multi-exposure strategies for high-density nanopatterning

Microsystems & Nanoengineering
Digital micromirror device-based maskless projection lithography (DMPL) has emerged as a transformative nanopatterning platform, yet faces fundamental challenges in resolving high-density nanostructures due to optical diffraction constraints.
Zi-Xin Liang, Jing-Tao Chen, Yuan-Yuan Zhao, Wen-Hui Li, Jing Zhou, Xuan-Ming Duan   +5 more
doaj   +1 more source

Refractometry With a Tailored Sensitivity Based on a Single-Mode-Capillary-Single-Mode Fiber Structure

IEEE Photonics Journal, 2017
We demonstrate a simple structure for the refractive index sensing by splicing a segment of capillary with two segments of single-mode fibers (SMFs). By selecting appropriate splicing parameters, two mode coupling regions can be formed with tapered air ...
Xiaobei Zhang, Haiyang Shao, Yong Yang, Haiyang Pan, Fufei Pang, Tingyun Wang   +5 more
doaj   +1 more source

Fiber distributed feedback laser [PDF]

, 1976
Utilizing round optical fibers as communication channels in optical communication networks presents the problem of obtaining a high efficiency coupling between the optical fiber and the laser. A laser is made an integral part of the optical fiber channel
Elachi, C., Evans, G. A., Yeh, C.
core   +1 more source