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Proceedings Paper

Experimental study of SBS suppression with phase-modulation in all-fiber amplifier
Author(s): Wenbo Du; Pu Zhou; Yanxing Ma; Xiaolin Wang; Jiajan Zhu; Xiaolin Dong; Xiaojun Xu; Bohong Shu
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Paper Abstract

A cascaded all-fiber amplifier was set up to investigate stimulated Brillouin scattering (SBS) suppression with phase-modulation (PM) in our experiment. With a modulation index of π / 2 , the SBS threshold power of the modulated amplifier can be enhanced with a factor of 3.5 compared with the unmodulated single frequency amplifier. In high power level, we demonstrate a 275 W all-fiber amplifier, where the SBS threshold enhancement factor is larger than 2.2 compared with the unmodulated case with SBS threshold power of 126 W. Further enhancing the output power is limited by available gain fiber and pump powers in this case.

Paper Details

Date Published: 20 August 2011
PDF: 6 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81921C (20 August 2011); doi: 10.1117/12.899872
Show Author Affiliations
Wenbo Du, National Univ. of Defense Technology (China)
Pu Zhou, National Univ. of Defense Technology (China)
Yanxing Ma, National Univ. of Defense Technology (China)
Xiaolin Wang, National Univ. of Defense Technology (China)
Jiajan Zhu, National Univ. of Defense Technology (China)
Xiaolin Dong, National Univ. of Defense Technology (China)
Xiaojun Xu, National Univ. of Defense Technology (China)
Bohong Shu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)

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