Coherent beam combining of two all-PM thulium-doped fiber chirped pulse amplifiers

Bo Ren; Hongxiang Chang; Can Li; Tao Wang; Kaikai Jin; Jiayi Zhang; Kun Guo; Rongtao Su; Jinyong Leng; Pu Zhou

doi:10.1007/s12200-024-00117-3

Journals >Frontiers of Optoelectronics >Volume 17 >Issue 2 >Page 12200 > Article

Frontiers of Optoelectronics
Vol. 17, Issue 2, 12200 (2024)

Coherent beam combining of two all-PM thulium-doped fiber chirped pulse amplifiers

Bo Ren¹, Hongxiang Chang¹, Can Li^1、*, Tao Wang¹, Kaikai Jin¹, Jiayi Zhang¹, Kun Guo¹, Rongtao Su^1、2、3, Jinyong Leng^1、2、3, and Pu Zhou¹

Author Affiliations

¹College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

²Nanhu Laser Laboratory, National University of Defense Technology, Changsha 410073, China

³Hunan Provincial Key Laboratory of High Energy Laser Technology, National University of Defense Technology,Changsha 410073, China

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DOI: 10.1007/s12200-024-00117-3 Cite this Article

Bo Ren, Hongxiang Chang, Can Li, Tao Wang, Kaikai Jin, Jiayi Zhang, Kun Guo, Rongtao Su, Jinyong Leng, Pu Zhou. Coherent beam combining of two all-PM thulium-doped fiber chirped pulse amplifiers[J]. Frontiers of Optoelectronics, 2024, 17(2): 12200 Copy Citation Text

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Abstract

In this paper, we report a coherent beam combining (CBC) system that involves two thulium-doped all-polarization maintaining(PM) fiber chirped pulse amplifiers. Through phase-locking the two channels via a fiber stretcher by using the stochastic parallel gradient descent (SPGD) algorithm, a maximum average power of 265 W is obtained, with a CBC efficiency of 81% and a residual phase error of λ/1

Keywords

Chirped pulse amplifier Coherent beam combining High-average power Thulium-doped fiber laser

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