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6 kW monolithic high power fiber laser with single-end pumped configuration

HONGHUAN LIN1, PENGFEI ZHAO1, CHAO GUO1, CHENGYU LI1, ZHEBIAO LI1, ZHIHUA HUANG1, XUAN TANG1,*

Affiliation

  1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

Abstract

A single-end pumped monolithic fiber laser with 6 kW output has been demonstrated. To obtain a high power output by means of single-end pumping, a 900 μm double cladding fiber and a corresponding new designed signal/pump combiner are developed. In experiment, this monolithic fiber laser achieves 6.03 kW output with an M2 beam quality of 2.4, and a center wavelength of 1079.7 nm. This single-end pumped fiber laser manifests good thermal management ability, and is promising for higher power scaling..

Keywords

Fiber laser, Single-end pump, Fiber device.

Citation

HONGHUAN LIN, PENGFEI ZHAO, CHAO GUO, CHENGYU LI, ZHEBIAO LI, ZHIHUA HUANG, XUAN TANG, 6 kW monolithic high power fiber laser with single-end pumped configuration, Optoelectronics and Advanced Materials - Rapid Communications, 11, 5-6, May-June 2017, pp.277-280 (2017).

Submitted at: Oct. 18, 2016

Accepted at: June 7, 2017