Results 271 to 280 of about 30,402 (331)

THEORY OF A RANDOM FIBER LASER

Журнал Экспериментальной и Теоретической Физики, 2014
We develop the theory explaining the role of nonlinearity in generation of radiation in a fiber laser that is pumped by external light. The pumping energy is converted into the generating signal due to the Raman scattering supplying an effective gain for the signal.
I. V. Kolokolov, V. V. Lebedev, E. V. Podivilov, S. S. Vergeles   +3 more
openaire   +1 more source

Recent advances and applications of random lasers and random fiber lasers

Progress in Quantum Electronics, 2021
Abstract Random Lasers (RLs) and Random Fiber Lasers (RFLs) have been the subject of intense research since their first experimental demonstration in 1994 and 2007, respectively. These low coherence light sources rely on multiple scattering of light to provide optical feedback in a medium combining a properly excited gain material and a scattering ...
Anderson S.L. Gomes, André L. Moura, Cid B. de Araújo, Ernesto P. Raposo   +3 more
openaire   +1 more source

Wideband Remote-Sensing Based on Random Fiber Laser

Journal of Lightwave Technology, 2022
Interrogating a remote passive-sensor with high fidelity is one of the biggest challenges in the sensing domain. Recently, random fiber laser (RFL) combined with remote fiber sensors was proposed for optical fiber sensing with high signal-to-noise ratio ...
Shengtao Lin, Zinan Wang, Yifei Qi, Bingtao Han, Han Wu, Y. Rao   +5 more
semanticscholar   +1 more source

Random Laser With Multiphase-Shifted Bragg Grating in Er/Yb-Codoped Fiber [PDF]

Journal of Lightwave Technology, 2015
A random fiber laser is demonstrated based on a 25-mm-long multiphase-shifted fiber Bragg grating fabricated in a highly Er/Yb-codoped fiber with the beam-scanning method.
Lulu Wang, Xinyong Dong, Perry Ping Shum   +2 more
exaly   +2 more sources

10 kW Fiber Amplifier Seeded by Random Fiber Laser With Suppression of Spectral Broadening and SRS

IEEE Photonics Technology Letters, 2022
A 10 kW fiber amplifier seeded by the random fiber laser (RFL) with 1018 nm tandem-pumping scheme is reported in this letter. The amplified RFL centered at 1085 nm is seeded by the RFL with a full-open cavity.
Shanshan Du, Tiancheng Qi, Dan Li, P. Yan, Mali Gong, Q. Xiao   +5 more
semanticscholar   +1 more source

Low Frequency-Noise Ring Random Fiber Laser With a Dual-Cavity FBG Fabry-Perot Filter

Journal of Lightwave Technology, 2022
A low frequency-noise ring random fiber laser (RFL) based on random Bragg grating array (RBGA) feedback is proposed. A dual-cavity fiber Bragg grating Fabry-Perot (FBG-FP) filter, which matches the wavelength of RBGA, is specially designed.
Bing Lv, Wentao Zhang, Wenzhu Huang, Fang Li   +3 more
semanticscholar   +1 more source

Fiber lasers with regular and random distributed feedback

Optical Fiber Communication Conference (OFC) 2021, 2021
We review our recent results on fiber lasers with distributed feedback based on π-shifted or random fiber Bragg gratings, and random index structures inscribed by femtosecond pulses in singlemode or multicore/multimode fibers.
Sergey A. Babin, Alexey G. Kuznetsov, Alexey A. Wolf, Mikhail I. Skvortsov, Alexander V. Dostovalov, Sergey I. Kablukov, Evgeniy V. Podivilov, Stefan Wabnitz   +7 more
openaire   +3 more sources

Multi-wavelength random fiber laser based on a tilted parallel inscribed apodized fiber Bragg grating array.

Optics Letters, 2022
We propose and demonstrate a multi-wavelength random fiber laser (RFL) based on a novel, to the best of our knowledge, compact apodized fiber Bragg grating array (AFBGA).
Ming Shen, Jiancheng Deng, Yanxin Li, X. Shu   +3 more
semanticscholar   +1 more source

Random fiber Bragg grating Raman fiber laser

Optics Letters, 2014
We demonstrate for the first time to our knowledge a Raman random fiber laser (RRFL) based on a long random fiber Bragg grating (RFBG-RRFL). Unlike other recently demonstrated random fiber lasers that rely on incoherent Rayleigh scattering feedback, the present scheme uses randomly distributed phase shifts inside a fiber-meter long Bragg grating as a ...
Mathieu, Gagné, Raman, Kashyap
openaire   +3 more sources

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