Results 261 to 270 of about 984,932 (306)

FBG array-based random distributed feedback Raman fibre laser

Quantum Electronics, 2017
We have demonstrated the possibility of making a Raman laser with a random distributed feedback ensured by an array of 57 fibre Bragg gratings with random phases and amplitudes inscribed in a 13-m-long polarisation-maintaining passive fibre. The linearly polarised cw output power at a wavelength of 1092.3 nm reaches 5.7 W.
M. Skvortsov, S. Abdullina, A. Vlasov, E. Zlobina, I. Lobach, V. Terentyev, S. Babin   +6 more
semanticscholar   +2 more sources

Random distributed feedback fiber lasers: Impact of third-order dispersion

Journal of Nonlinear Optical Physics & Materials, 2019
In this paper, one of the most modern random lasers known as random distributed feedback fiber laser is investigated when the third-order dispersion (TOD) is taken into account.
Fatemeh Mazarei, G. Honarasa, H. Pakarzadeh, I. Amiri   +3 more
semanticscholar   +2 more sources

Tunable and switchable multi-wavelength random distributed feedback fiber laser based on SMF and a cascaded Sagnac ring filter.

Applied Optics, 2022
A tunable and switchable multi-wavelength random distributed feedback fiber laser based on cascaded Sagnac loops is proposed and experimentally demonstrated.
H. Pan, Zhanzhi Liu, A. Zhang, Taotao Guo, Yaomei Peng   +4 more
semanticscholar   +1 more source

Modal Dynamics in Kilowatt Cladding-Pumped Random Distributed Feedback Raman Fiber Laser With Brightness Enhancement

Journal of Lightwave Technology, 2022
Random distributed-feedback Raman fiber lasers (RRFLs) are promising contenders in the applications of remote sensing, biotechnology, imaging, thanks to the unique properties on low coherence and wavelength agility.
Chenchen Fan, Yi An, Yang Li, Xiulu Hao, T. Yao, H. Xiao, Liangjin Huang, Jiangming Xu, J. Leng, P. Zhou   +9 more
semanticscholar   +1 more source

Temporally stable fiber amplifier pumped random distributed feedback Raman fiber laser with record output power.

Optics Letters, 2021
In this Letter, we propose a scheme to use a temporally stable pump source in a high-power random distributed feedback Raman fiber laser (RRFL) with a half-open cavity.
Jiaxin Song, Shuai Ren, Wei Liu, Wei Li, Hanshuo Wu, P. Ma, Hanwei Zhang, P. Zhou   +7 more
semanticscholar   +1 more source

Single-frequency erbium-doped fibre laser with random distributed feedback based on disordered structures produced by femtosecond laser radiation

Quantum electronics (Woodbury, N.Y.), 2021
Inscription of structures by a femtosecond laser beam allows one to produce disordered structures capable of increasing the Rayleigh backscatter intensity in the fibre at relatively low induced losses, which makes them potential candidates for use as ...
M. Skvortsov, S. Abdullina, A. Wolf, A. Dostovalov, A. E. Churin, O. Egorova, S. L. Semjonov, K. Proskurina, S. Babin   +8 more
semanticscholar   +1 more source

Random distributed feedback fiber laser at 21  μm

Optics Letters, 2016
We demonstrate a random distributed feedback fiber laser at 2.1 μm. A high-power pulsed Tm-doped fiber laser operating at 1.94 μm with a temporal duty ratio of 30% was employed as a pump laser to increase the equivalent incident pump power. A piece of 150 m highly GeO2-doped silica fiber that provides a strong Raman gain and random distributed ...
Xiaoxi, Jin, Zhaokai, Lou, Hanwei, Zhang, Jiangming, Xu, Pu, Zhou, Zejin, Liu   +5 more
openaire   +2 more sources

Switchable multi-wavelength erbium-doped random distributed feedback fiber laser incorporating two-stage Sagnac filter

Laser physics, 2020
A low-threshold and simple structure switchable multi-wavelength fiber laser based on random distributed feedback (RDFB) is presented. The experiment setup incorporates a two-stage Sagnac fiber loop mirror, an 8 m long erbium-doped fiber (EDF), and a 25 ...
Jingwei Liu, Z. Tong, Weihua Zhang, Xutao Shi, Jiaxin Li   +4 more
semanticscholar   +1 more source

Kilowatt Cladding-Pumped Random Distributed-Feedback Raman Fiber Laser

Laser Congress 2021 (ASSL,LAC), 2021
The first cladding-pumped random distributed-feedback Raman fiber laser based on all-fiberized half-open cavity is demonstrated to our best knowledge. The record output power of 1 kW at 1132 nm is achieved with improved beam quality.
Chenchen Fan, Tianfu Yao, Hu Xiao, Liangjin Huang, Jiangming Xu, Jinyong Leng, Pu Zhou   +6 more
openaire   +1 more source

Fully distributed amplification based on random distributed feedback fiber laser

2012 17th Opto-Electronics and Communications Conference, 2012
A novel distributed Raman amplification based on Random Distributed feedback fiber laser (RDFB-FL) is proposed for the first time. The experimental results confirmed its unique ultra-low intensity noise performance for the proposed distributed amplification.
Yun-Jiang Rao, Xin-Hong Jia, Zi-Nan Wang, Yun Jiang, Wei-Li Zhang   +4 more
openaire   +1 more source