Abstract

The beam quality mismatch in the fast and slow axes of laser diode stacks limits their applications. An effective beam-shaping method was proposed based on a pair of step prisms. Using this technique, we can eliminate the lightless areas and achieve polarization multiplexing of laser diode stacks. Two laser diode stacks consisting of eight bars were coupled into a fiber with a core diameter of 200 μm and a numerical aperture of 0.22. The simulation results demonstrated that the output power can reach 1083 W and the optical-optical efficiency was 84.6%.

© 2017 Optical Society of America

High brightness beam shaping and fiber coupling of laser-diode bars

Junhong Yu, Linui Guo, Hualing Wu, Zhao Wang, Hao Tan, Songxin Gao, Deyong Wu, and Kai Zhang
Appl. Opt. 54(11) 3513-3516 (2015)

Beam shaping design for compact and high-brightness fiber-coupled laser-diode system

Junhong Yu, Linui Guo, Hualing Wu, Zhao Wang, Hao Tan, Songxin Gao, Deyong Wu, and Kai Zhang
Appl. Opt. 54(18) 5759-5763 (2015)

Beam shaping for kilowatt fiber-coupled diode lasers by using one-step beam cutting-rotating of prisms

Yulong Wu, Zhiyong Dong, Yongqi Chen, Yaoyao Qi, Xiandan Yuan, Yunfei Qi, Li Xu, Xuechun Lin, Yonggang Zou, and Pengfei Zhao
Appl. Opt. 55(34) 9769-9773 (2016)

Beam shaping design for coupling high power diode laser stack to fiber

Seyed Hamed Ghasemi, Mohammad-Reza Hantehzadeh, Jamshid Sabbaghzadeh, Davoud Dorranian, Majid Lafooti, Vahid Vatani, Reza Rezaei-Nasirabad, Atefeh Hemmati, Ali Asghar Amidian, and Seyed Ali Alavian
Appl. Opt. 50(18) 2927-2930 (2011)

High brightness laser-diode device emitting 160 watts from a 100  μm/NA  0.22 fiber

Junhong Yu, Linui Guo, Hualing Wu, Zhao Wang, Hao Tan, Songxin Gao, Deyong Wu, and Kai Zhang
Appl. Opt. 54(32) 9385-9389 (2015)