2.7kW narrow linewidth all fiber laser

Liming Zhang; Kun Zhang; Rufeng Sun; Runze Long; Hong Zhao; Ligang Yuan; Shouhuan Zhou

doi:10.1117/12.2627510

28 March 2022 2.7kW narrow linewidth all fiber laser

Liming Zhang, Kun Zhang, Rufeng Sun, Runze Long, Hong Zhao, Ligang Yuan, Shouhuan Zhou

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 12169DN (2022) https://doi.org/10.1117/12.2627510
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Recently, narrow linewidth fiber lasers are wide applied in coherent detection and wavelength beam combining. In high power narrow linewidth fiber laser, Stimulated Brillouin Scattering (SBS) is the major power limitation factor. Through increasing the frequency number and frequency spacing, SBS threshold power multiplied. In this paper, tow stage white noise phase modulation technology is used to control the frequency number and frequency spacing. Under tow stage white noise phase modulation and three stage fiber amplified technology, the laser linewidth of 13GHz，power of 2.7kW and central wavelength of 1064.4nm, are achieved respectively. And the beam quality is M²_x = 1.31 and M²_y = 1.3.

Citation Download Citation

Liming Zhang, Kun Zhang, Rufeng Sun, Runze Long, Hong Zhao, Ligang Yuan, and Shouhuan Zhou "2.7kW narrow linewidth all fiber laser", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 12169DN (28 March 2022); https://doi.org/10.1117/12.2627510

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