Share Email Print
cover

Proceedings Paper • new

Influence of structural parameters of high-power fiber lasers on stimulated Raman scattering and the suppression methods
Author(s): Lu Yin; Zhigang Han; Mingjian Yan; Hua Shen; Rihong Zhu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In high-power fiber lasers, stimulated Raman scattering (SRS) is a major factor limiting its power increase. In order to analyze the influence of the SRS effect on high-power fiber lasers, based on the traditional SRS model, we propose a theoretical model of multimode fiber lasers and fiber amplifiers containing the SRS effect. Then, the theoretical model is used to analyze the influence of various structural parameters of the fiber laser on the SRS effect. According to the simulation analysis results, we constructed a fiber laser system based on a master oscillator power amplifier configuration to carry out verification experiments for various structural parameters. The experimental results show that shortening the length of the gain fiber and the transmitting fiber, choosing a signal light of longer wavelength, and increasing the fiber core diameter can suppress the influence of the SRS effect on the fiber laser. And we apply the analysis results to 3 kW fiber laser system, and successfully achieve the suppression of SRS effect in the highpower fiber laser.

Paper Details

Date Published: 17 May 2019
PDF: 9 pages
Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111701D (17 May 2019); doi: 10.1117/12.2533083
Show Author Affiliations
Lu Yin, Nanjing Univ. of Science and Technology (China)
Zhigang Han, Nanjing Univ. of Science and Technology (China)
Mingjian Yan, Nanjing Univ. of Science and Technology (China)
Hua Shen, Nanjing Univ. of Science and Technology (China)
Rihong Zhu, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 11170:
14th National Conference on Laser Technology and Optoelectronics (LTO 2019)
Jianqiang Zhu; Weibiao Chen; Zhenxi Zhang; Minlin Zhong; Pu Wang; Jianrong Qiu, Editor(s)

© SPIE. Terms of Use
Back to Top