Mode-solved bending loss measurement for large-mode-area fiber based on spatial and spectral resolution imaging

Chenchen Fan; Liangjin Huang; Jiawei He; Zhiyong Pan; Jinyong Leng; Pu Zhou

doi:10.1117/12.2580331

5 November 2020 Mode-solved bending loss measurement for large-mode-area fiber based on spatial and spectral resolution imaging

Chenchen Fan, Liangjin Huang, Jiawei He, Zhiyong Pan, Jinyong Leng, Pu Zhou

Author Affiliations +

Proceedings Volume 11562, AOPC 2020: Advanced Laser Technology and Application; 1156218 (2020) https://doi.org/10.1117/12.2580331
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

In this article, we present the first-ever mode-resolved bending loss measurement for Large-mode-aera (LMA) fiber based on S² mode measurement method. The new method can be extended to measure the bending loss of all high order modes (HOMs) of LMA fiber at different bending radii, which is more accurate than previously reported methods. What is more, it can provide guidance for the design and control of LMA fiber, and provide parameter basis for the beam quality optimization of high-power fiber laser (HPFL) system.

Citation Download Citation

Chenchen Fan, Liangjin Huang, Jiawei He, Zhiyong Pan, Jinyong Leng, and Pu Zhou "Mode-solved bending loss measurement for large-mode-area fiber based on spatial and spectral resolution imaging", Proc. SPIE 11562, AOPC 2020: Advanced Laser Technology and Application, 1156218 (5 November 2020); https://doi.org/10.1117/12.2580331

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