High Power Laser and Particle Beams, Volume. 34, Issue 2, 021002(2022)
Research progress of stimulated Raman scattering effect in high power fiber lasers
Figures & Tables(11)
![Transverse mode instability induced by stimulated Raman scattering[15-16]](/Images/icon/loading.gif){kind=icon}
Fig. 2. Quasi-static mode distortion induced by stimulated Raman scattering[18]
Fig. 9. Simulated temporal fluctuations and simulated spectra at the output power of ～1 kW[78]
Table 1. Summary of the recent SRS mitigation performance by fiber design
View tableView in ArticleTable 1. Summary of the recent SRS mitigation performance by fiber design
strategy diameter/μm (core/clad) performance period materials — gain decrease ～3 dB 2013—2018 LMA confined-dope fiber ${A_{{\rm{eff}}}}$ 600 μm2～22 dB SNR (8 kW) 2012— tapered fiber 20/400 to 30/600 no Raman Stokes light when output power reached 2170 W 2019— SSC-YDF 20/400+30/600+20/400 no Raman Stokes light when output power reached 5008 W 2018— delocalization star-shaped filter fiber 10 (core) ～17 dB (net suppression ratio) 2006/2014 decreasing fiber length LCA-DCF 20/400 SRS threshold increase from 1.6 to 2.4 kW 2020—
Table 2. Summary of the parameters optimization strategy in fiber laser system
View tableView in ArticleTable 2. Summary of the parameters optimization strategy in fiber laser system
parameter guideline/method parameter guideline/method wavelength of signal ＞1085 nm bandwidth of FBG in OSC wider fiber length ＜60 m reflective index of FBG in OSC lower core diameter ＞20 μm doping concentration lower seed power lower Raman noise of seed power ＜10−8 W pump methods backward gratings CTFBG/LPG external feedback large angle cleaving self-pulsation special designed seed sources FMW choosing the suitable dispersion value of fibers IM-FWM temporal stable pump
Tools
Get Citation
Copy Citation Text
Chun Zhang, Lianghua Xie, Qiuhui Chu, Yu Liu, Shan Huang, Huaqing Song, Wenjie Wu, Xi Feng, Min Li, Benjian Shen, Haokun Li, Rumao Tao, Lixin Xu, Jianjun Wang. Research progress of stimulated Raman scattering effect in high power fiber lasers[J]. High Power Laser and Particle Beams, 2022, 34(2): 021002
Paper Information
Category: High Power Laser Physics and Technology?Overview
Received: Jun. 27, 2021
Accepted: --
Published Online: Jan. 26, 2022
The Author Email: Tao Rumao (supertaozhi@163.com)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20