2-kW single-mode fiber laser employing bidirectional-pump scheme

Zhang，Fan1,2; Zheng，Wenyou1; Shi，Pengyang1,3; Zhang，Xinhai1

10.1117/12.2286036

2018

0277-786X

1996-756X

Proceedings of SPIE - The International Society for Optical Engineering

10619

2kW single-mode fiber laser with two cascade home-made cladding light strippers (CLSs) by employing bidirectionalpump scheme has been demonstrated. 2.009 kW signal power is obtained when pump power is 2.63 kW and the slope efficiency is 76.6%. Raman Stokes light is less than -47 dB at 2.009 kW even with a 10-m delivery fiber with core/inner cladding diameter of 20/400um. The beam quality M2≤1.2 and the spectral FWHM bandwidth is 4.34nm. There is no transverse mode instability and the output power stability of ±0.14% is achieved by special thermal management for a more uniform temperature distribution on the Yb-doped gain fiber.

Fiber laser High power Power stability Stimulated Raman scattering

第一 ; 通讯

英语

CPCI-S ; EI

WOS:000425531900015

20180504684917

Single mode fibers ; Pumping (laser)

Fiber Optics:741.1.2 ; Lasers, General:744.1 ; Solid State Lasers:744.4

2-s2.0-85041010960

Scopus

1.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.NanKai University,Tianjian,300071,China
3.Harbin Institute of Technology,Harbin,150006,China

Zhang，Fan,Zheng，Wenyou,Shi，Pengyang,et al. 2-kW single-mode fiber laser employing bidirectional-pump scheme[C],2018.