Multiple and selectable wavelength green laser generation based on coaxial diode-end-pumping

Yang Liu; Kai Zhong; Quan Sheng; Kefei Liu; Hongzhan Qiao; Degang Xu; Jianquan Yao

doi:10.1117/12.2544033

21 February 2020 Multiple and selectable wavelength green laser generation based on coaxial diode-end-pumping

Yang Liu, Kai Zhong, Quan Sheng, Kefei Liu, Hongzhan Qiao, Degang Xu, Jianquan Yao

Proceedings Volume 11259, Solid State Lasers XXIX: Technology and Devices; 112591O (2020) https://doi.org/10.1117/12.2544033
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

A multi-wavelength green laser is presented based on a coaxial diode-end-pumping configuration by intracavity frequency doubling with a nonlinear crystal. The composite gain media (Nd:YVO₄ and Nd:GdVO₄) are placed coaxially and share one pump diode around 808 nm to generate two competition-free fundamental laser at 1064.4 nm and 1063.2 nm. The nonlinear crystal (KTP or LBO) are satisfactory for second-harmonic generation (SHG) and sum-frequency generation (SFG) with different fundamental wavelengths. Stable multi-watt green lasers at 532.2 nm, 531.6 nm and 531.9 nm are simultaneously obtained. Through gain controlling by tuning the pump focusing depth and pump absorption, the power ratio for those wavelengths and pulse interval can be manipulated actively. A rate-equation model is proposed and the experimental results coincide with the simulations. By replacing the gain media (Nd:YAG, Nd:GSGG, Nd:YAP, etc), various green lasers with multiple and selectable wavelengths are possible, which have great potential in practical applications.

Conference Presentation

Citation Download Citation

Yang Liu, Kai Zhong, Quan Sheng, Kefei Liu, Hongzhan Qiao, Degang Xu, and Jianquan Yao "Multiple and selectable wavelength green laser generation based on coaxial diode-end-pumping", Proc. SPIE 11259, Solid State Lasers XXIX: Technology and Devices, 112591O (21 February 2020); https://doi.org/10.1117/12.2544033

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