Beam-shaping technique for laser diode bars with prism group

PAN Yuan-yuan; CUI Rui-zhen; CHEN Gang; GONG Ma-li; HUANG Lei

With the ever-increasing needs of high power diode laser source,it is important to obtain symmetric diode laser beam with high power so that a kind of beam-shaping technique with isosceles right-angled prism group has been used to achieve this aim.The experiment presents that the beam-quality is nearly equal for both the fast and slow axes,and the reshaping efficiency is up to 90%.Diode lasers with improved beam-quality can be applied as the pumping source in many high-power solid lasers and fiber lasers.

Corresponding author: GONG Ma-li, gongml@mail.tsinghua.edu.cn;

1. The State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China

Received Date: 2005-06-27

Accepted Date: 2005-08-16

Available Online: 2006-07-25

Abstract: With the ever-increasing needs of high power diode laser source,it is important to obtain symmetric diode laser beam with high power so that a kind of beam-shaping technique with isosceles right-angled prism group has been used to achieve this aim.The experiment presents that the beam-quality is nearly equal for both the fast and slow axes,and the reshaping efficiency is up to 90%.Diode lasers with improved beam-quality can be applied as the pumping source in many high-power solid lasers and fiber lasers.

HTML

Reference (10)

[1]	DU K M,LOOSEN P.Arrangement for guiding and shaping beamsfrom a rectilinear laser diode array[P].US Patent:5887096,1999-03-23.
[2]	GRAF T,BALMER J E.High power Nd:YLF laser end pumped by a diode-laser bar[J].Opt Lett,1993,18(16):1317～1319.
[3]	CLARKSON W A,NEILSON A B,HANNA D C.Beam shaper[P].US Patent:5825551,1998-10-20.
[4]	YAMAGUCHI S,KOBAYASHI T,SAITO Y et al.Collimation of emissions from a high-power multistripe laser-diode bar with multiprism array coupling and focusing to a small spot[J].Opt Lett,1995,20(8):898～900.
[5]	WANG Zh J,GHEEN A Z,WANG Y.Optical coupling system for a high-power diode-pumped solid state laser[P].US Patent:6377410B1,2002-04-23.
[6]	FERMANN M E.Configuration of and method for optical beam shaping of diode laser bars[P].US Patent:6700709,2004-03-02.
[7]	GUO M X,LU Y T,SHEN G Q.Beam shaping device for diode laser[J].Applied Laser,2003,23(4):215～216(in Chinese).
[8]	GUO M X,SHEN G Q,LU Y T.The technology of laser diode beam shaping[J].Laser Technology,2003,27(4):357～361(in Chinese).
[9]	DORSCH F,HENNING P,NICKEL M.High-brightness fibre-coupleddiode laser moudule[J].SPIE,1998,3285:192～198.
[10]	WOLAK E L,ALTO P,ENDRIZ J G et al.Packaged laser diode array system and method with reduced asymmetry[P].US Patent:6044096,2000-03-28.

Beam-shaping technique for laser diode bars with prism group

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views