Er:YAG MOPA system based on a polarization-multiplexing 4-pass structure | Zendy

Shanghua Li | Zendy; Chunqing Gao | Zendy; Rui Song | Zendy; Fangfang Hou | Zendy; Jing Guo | Zendy; Qing Wang | Zendy; Mingwei Gao | Zendy

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Er:YAG MOPA system based on a polarization-multiplexing 4-pass structure

Author(s) -

Shanghua Li,

Chunqing Gao,

Rui Song,

Fangfang Hou,

Jing Guo,

Qing Wang,

Mingwei Gao

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.392023

Subject(s) - optics , multiplexing , materials science , polarization (electrochemistry) , laser , amplified spontaneous emission , laser beams , laser beam quality , optoelectronics , physics , telecommunications , chemistry , computer science

A 4-pass structure Er:YAG MOPA system at 1645 nm is theoretically and experimentally investigated. In accordance with the theoretical analysis, the 4-pass structure significantly improved the amplification performance. The highest gain is about 4 with 1 mJ incident seed energy. The power fluctuation and beam quality are improved after the amplification.

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