Results 251 to 260 of about 119,729 (285)

Random Laser with Erbium-Doped Fiber and fs-Laser Introduced Random Fiber Grating

2018 Asia Communications and Photonics Conference (ACP), 2018
A novel half cavity random fiber laser is demonstrated by using erbium-doped fiber as gain media, a fs- laser introduced random fiber grating to provide random distributed feedback and a strong chirped-fiber Bragg grating to form half-cavity configuration. A relatively low threshold power of 33 mW is achieved for 980 nm pump.
Jingxuan Song, Xinyong Dong, Ziyang Guo, Ben Xu, Dongning Wang   +4 more
openaire   +1 more source

Theoretical study of Raman fiber laser and random fiber laser

AOPC 2017: Laser Components, Systems, and Applications, 2017
We present results on Raman fiber laser and random fiber laser. We theoretically analyzed the optical conversion efficiency in core and cladding pumped Raman fiber lasers. For cladding pumped Raman fiber laser, we change the cladding area and core area ration, fiber length, reflectivity of output FBG, Raman gain for improving the laser efficiency.
Jianquan Yao, Quan Sheng, Shijie Fu, Wei Shi, Zhaoxin Xie   +4 more
openaire   +1 more source

Polarization-modulated random fiber laser

Laser Physics Letters, 2016
In this letter, we propose and experimentally demonstrate a polarization-modulated random fiber laser (RFL) for the first time. It is found that the output power of the half-opened RFL with polarized pumping is sensitive to the state of polarization (SOP) of the Stokes light in a fiber loop acting as a mirror.
Han Wu, Zinan Wang, Qiheng He, Mengqiu Fan, Yunqi Li, Wei Sun, Li Zhang, Yi Li, Yunjiang Rao   +8 more
openaire   +1 more source

Modes in Fiber Random Laser

Conference on Lasers and Electro-Optics 2010, 2010
We present the results of the experimental and theoretical studies of the random laser based on an Er/Ge co-doped single-mode fiber with randomly spaced Bragg gratings.
V. Freilikher, Y. Bliokh, N. Lizárraga, E. I. Chaikina, E. R. Méndez   +4 more
openaire   +1 more source

1.36-kW Spectral-Narrowing Fiber Laser Seeded by Random Fiber Laser

IEEE Photonics Technology Letters, 2019
A single-mode 1.36-kW output power fiber amplifier with 0.22-nm full-width at half-maximum (FWHM) is realized by employing a master oscillator power amplifier (MOPA) configuration, seeded by a random fiber laser (RFL). We demonstrated an approach of narrowing the emission spectrum of the fiber amplifier by lengthening the passive fiber in the seed ...
Jingpu Zhang, Gang Bai, Xuewen Li, Yifeng Yang, Bing He, Jun Zhou   +5 more
openaire   +1 more source

Hydrogel optical fiber random laser

Optics & Laser Technology, 2023
Meiqi Yu, Siqi Li, Yan Kuai, Yu Liu, Zhigang Cao, Feng Xu, Feng Xie, Kang Xie, Liang Lu, Benli Yu, Zhijia Hu   +10 more
openaire   +1 more source

Recent progress in random fiber lasers

2013 12th International Conference on Optical Communications and Networks (ICOCN), 2013
This paper reviews recent progress in random fiber lasers (RFLs), including fundamental studies on their physical characteristics, design and analysis, as well as their applications, i.e., novel lasers, sensing, and amphfication indicating that RFLs would have an impact on Fiber Optics.
Y. J. Rao, W L. Zhang
openaire   +1 more source

Tunable multiwavelength Brillouin random fiber laser

2018 Asia Communications and Photonics Conference (ACP), 2018
A novel tunable multiwavelength random fiber laser with half-open cavity has been demonstrated, which is formed by total reflection of a connected 3 dB coupler and randomly distributed Rayleigh scattering in single mode fiber. Seven Stokes lines have been achieved.
Zhaoyu Ji, Yuxiang Deng, Hongdan Wan, Zuxing Zhang   +3 more
openaire   +2 more sources

Random Fiber Lasers and Applications

Asia Communications and Photonics Conference 2015, 2015
Recent advances in research and applications of random fiber lasers, which are substantially different with conventional fiber lasers due to their unique features of modeless and temperature-insensitivity, are reviewed systematically.
openaire   +1 more source

Towards high-power random fiber laser

SPIE Proceedings, 2014
Study on random laser is an interesting topic in physics. In this paper we pay much attention to the high power random laser achievement in optical fiber. Two kinds of optical gains are used for light amplification. One is Raman gain and the other is Yb-doped fiber gain.
Hanwei Zhang, Pu Zhou, Haibin Lv, Hu Xiao, Xiaolin Wang, Xiaojun Xu   +5 more
openaire   +1 more source