Translator Disclaimer
Paper
29 March 2019 SBS suppression in high brightness, all-fiberized and linearly polarized amplifiers by rectangular spectrum
Author Affiliations +
Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 1104605 (2019) https://doi.org/10.1117/12.2523633
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China
Abstract
Stimulated Brillouin scattering (SBS) suppression in high power, narrow linewidth and all polarization-maintained amplifiers with near diffraction limited (NDL) beam quality by rectangular optical spectrum is demonstrated. Rectangular spectrum is generated by using cascaded phase modulations. In the preliminary experiment, output power of 509 W with spectral linewidth of ~ 3 GHz is obtained. At maximal output power, the polarization extinction ratio (PER) is measured to be ~ 14 dB and the beam quality (M2 factor) is M2 ~1.2. The technique presented give useful reference to control the spectral linewidth in high brightness fiber amplifiers. By combining with other linewidth controlling techniques, several kilowatt-level output power with spectral linewidth of < 10 GHz could be expected.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daren Meng, Pengfei Ma, Xubao He, Wenchang Lai, Rongtao Su, Yanxing Ma, Pu Zhou, and Lijia Yang "SBS suppression in high brightness, all-fiberized and linearly polarized amplifiers by rectangular spectrum", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 1104605 (29 March 2019); https://doi.org/10.1117/12.2523633
PROCEEDINGS
5 PAGES


SHARE
Advertisement
Advertisement
Back to Top