Research on LD-pumped dual wavelength Nd:YAG laser with high beam quality for machining

Jianfeng Cui; Zhongwei Fan; Chunhua Zhao; Jing Zhang; Gang Niu; Zhaohui Shi; Bo Pei; Guoxin Zhang; Yan Xue

doi:10.1117/12.667349

30 December 2005 Research on LD-pumped dual wavelength Nd:YAG laser with high beam quality for machining

Jianfeng Cui, Zhongwei Fan, Chunhua Zhao, Jing Zhang, Gang Niu, Zhaohui Shi, Bo Pei, Guoxin Zhang, Yan Xue

Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 60282G (2005) https://doi.org/10.1117/12.667349
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Considering laser medium thermal lens effect and thermal focal length changes with pumping power, conventionally, lasers are designed to operate in the middle of thermal stable zones, where the fundamental mode size is insensitive to thermal perturbation, while this method seems impossible when large fundamental mode size is required. Through self-select mode cavity, lasers are designed to work at the border of stable zone instead, where large fundamental mode size in gain media can be reached. With increase of pumping power and self-aperture mode-selective effect, mode size would grow up automatically to a certain value suitable for monomode resonance. With double 180 W pump modules, acoustic Q-switch and LBO external frequency-doubled, over 28 W which M² equals 4.5 quasi-CW output green laser and 52W 1.064 um IR output is obtained simultaneity. With the insertion or not of the harmonic separator by footswitch high beam quality green IR, and green & IR lasers are obtained conveniently.

Citation Download Citation

Jianfeng Cui, Zhongwei Fan, Chunhua Zhao, Jing Zhang, Gang Niu, Zhaohui Shi, Bo Pei, Guoxin Zhang, and Yan Xue "Research on LD-pumped dual wavelength Nd:YAG laser with high beam quality for machining", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60282G (30 December 2005); https://doi.org/10.1117/12.667349

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available