Experimental research on kW single mode MOPA fiber laser
The home and abroad status of kW-class fiber laser is investigated. And the achievable method of kW all fiber laser and manner of controlling mode are analyzed. The ways of master-oscillator power amplifier which includes a master oscillator stage and a booster amplifier stage were used. The continuous laser of 1.08μm, biggest output power of 1.05kW is achieved respectively. And the optical-optical conversion efficiency is 77％. The beam quality is 43 . 1 2 = x M and 42 . 1 2 = y M . The reason that beam quality is deteriorative is analyzed. In high power, part of laser which is transmitted in the fiber core originally, is leaked to inner cladding by fiber bending. Then, the beam quality is worsened by laser which was transmitted in inner cladding. For some special use, the stabilization of center wavelength is researched. Through measurement, there is no obvious variation in center wavelength with the output power increasing.
kilowatt fiber laser single mode MOPA pump source
Liming Zhang Shouhuan Zhou Hong Zhao Chen Zhu Yao Li Kun Zhang Xiongfei Wang Dayong Zhang
Science and Technology on Solid-state Laser Laboratory North China Research Institute of Electro-optics Beijing, China
国际会议
2012 International Conference on Optoelectronics and Microelectronics(2012光电子与微电子国际学术会议 2012 ICOM)
长春
英文
192-194
2012-08-23（万方平台首次上网日期，不代表论文的发表时间）