Open Access500 W level MOPA laser with switchable output modes based on active control
Author(s) -
Rongtao Su,
Baolai Yang,
Xiaoming Xi,
Pu Zhang,
Xiaolin Wang,
Yanxing Ma,
Xiaojun Xu,
Jinbao Chen
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.023275
Subject(s) - optics , amplifier , fiber laser , laser , materials science , polarization controller , polarization maintaining optical fiber , laser power scaling , optical amplifier , optoelectronics , optical fiber , physics , fiber optic sensor , cmos
We report a high power transverse-mode-switchable fiber laser in a master oscillator power amplifier (MOPA) configuration. The output modes of a few-mode fiber amplifier can be actively controlled by the input polarization state of the fundamental mode seed laser using SPGD algorithm. A fast, stable and safety mode switching between LP01 and LP11 modes is achieved in the amplifier at output power of 500 W level.