High brightness narrow-stripe broad-area diode lasers at 976 nm

Yi Li; Weichuan Du; Kun Zhou; Junjie Kang; Songxin Gao; Deyong Wu; Yao Hu; Liang Zhang; Hao Tan; Chun Tang

doi:10.1117/12.2521923

12 March 2019 High brightness narrow-stripe broad-area diode lasers at 976 nm

Yi Li, Weichuan Du, Kun Zhou, Junjie Kang, Songxin Gao, Deyong Wu, Yao Hu, Liang Zhang, Hao Tan, Chun Tang

Proceedings Volume 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application; 110234H (2019) https://doi.org/10.1117/12.2521923
Event: Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 2018, Xi'an, China

Abstract

In this research, the transversal mode of 970 nm broad area laser diode based on a large optical cavity is studied. The vertical far-field patterns were measured to be dependent on the cavity caused facet loss. High-orders modes achieve lasing with higher facet loss while they can be completely suppressed by a low facet loss. The suppression of high-order modes was attributed to be an increase in the discrimination of differential quantum efficiency between high-order modes and the fundamental mode, which matches well with simulation. When the discrimination exceeds probable fluctuations, the high-order modes will be completely suppressed and lasing of single fundamental mode will achieve. According to our experiment results, the optimal resonance cavity length is about 6 mm in order to realize fundamental mode and simultaneously a high slope efficiency. As a consequence, high efficiency 970 nm broad area laser with slope efficiency over 1.07 W/A and full wavelength half maximum (FWHM) less than 2 nm@1A is demonstrated.

Citation Download Citation

Yi Li, Weichuan Du, Kun Zhou, Junjie Kang, Songxin Gao, Deyong Wu, Yao Hu, Liang Zhang, Hao Tan, and Chun Tang "High brightness narrow-stripe broad-area diode lasers at 976 nm", Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110234H (12 March 2019); https://doi.org/10.1117/12.2521923

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