A study on the mode selection of fiber-laser with a small aperture

Wei Wang; Bing He; Gang Li; Jun Zhou; Hui Xu; Qihong Lou; Zhijun Yuan; Xia Liu

doi:10.1117/12.821191

18 February 2009 A study on the mode selection of fiber-laser with a small aperture

Wei Wang, Bing He, Gang Li, Jun Zhou, Hui Xu, Qihong Lou, Zhijun Yuan, Xia Liu

Proceedings Volume 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications; 72760B (2009) https://doi.org/10.1117/12.821191
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

In this paper, it is discussed relationship between the beam quality factor and high order mode in fiber laser, and the relationship between the divergence angle and the beam quality factor. An aperture with adapted diameter in cavity could introduce low loss for the fundament mode but high loss for high order modes. In this method, it is easy to realized mode-selection. By using this method, experiment demonstrated that 23.4W output from a single fiber laser with 1.20 of M² is obtained.

Citation Download Citation

Wei Wang, Bing He, Gang Li, Jun Zhou, Hui Xu, Qihong Lou, Zhijun Yuan, and Xia Liu "A study on the mode selection of fiber-laser with a small aperture", Proc. SPIE 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications, 72760B (18 February 2009); https://doi.org/10.1117/12.821191

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