Research on solid-core ARF coupler for fiber laser amplification

Long Dai; Shijie Fu; Quan Sheng; Wei Shi; Jianquan Yao

doi:10.1117/12.2686232

27 November 2023 Research on solid-core ARF coupler for fiber laser amplification

Long Dai, Shijie Fu, Quan Sheng, Wei Shi, Jianquan Yao

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 127600S (2023) https://doi.org/10.1117/12.2686232
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

A new dual-core fiber coupler is designed to realize the coupling of pump light from pump fiber to gain fiber to achieve the amplification of signal light. The optical coupler comprises three parts: pump coupling and laser amplification section, proportionally reduced size section, and single-mode signal transmission section. The pump coupling and laser amplification section is composed of pump optical fiber A and anti-resonant signal fiber B. For the coupling part, the coupling ratio of pump light LP01 mode is 97.8%, and the coupling length is 2.97 m. For the designed fiber coupler, low transmission loss can be achieved for both 976 nm and 1064 nm at the pump coupling and laser amplification section, while single-mode, low transmission loss at 1064 nm, and high loss at 976 nm for residual pump stripping are obtained at the single-mode transmission section.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Long Dai, Shijie Fu, Quan Sheng, Wei Shi, and Jianquan Yao "Research on solid-core ARF coupler for fiber laser amplification", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 127600S (27 November 2023); https://doi.org/10.1117/12.2686232

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