High-power and low-loss room temperature operation of 2.4μm GaInAsSb/AlGaAsSb type-I strained quantum-well laser diodes

Yuzhi Song; Jiakun Song; Yu Zhang; Kangwen Li; Yun Xu; Guofeng Song; Lianghui Chen

doi:10.1117/12.2199252

15 October 2015 High-power and low-loss room temperature operation of 2.4μm GaInAsSb/AlGaAsSb type-I strained quantum-well laser diodes

Yuzhi Song, Jiakun Song, Yu Zhang, Kangwen Li, Yun Xu, Guofeng Song, Lianghui Chen

Author Affiliations +

Proceedings Volume 9671, AOPC 2015: Advances in Laser Technology and Applications; 96710P (2015) https://doi.org/10.1117/12.2199252
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

High power GaSb based type-I GaInAsSb/AlGaAsSb three quantum wells laser diodes emitting at 2.4 μm were optimized and fabricated. The laser wafer was grown with solid source Molecular Beam Epitaxy System. With optimizations of the epitaxial structure design and the ohmic contact, the operation voltage and the internal loss decreased; the internal quantum efficiency and output power increased. The internal quantum efficiency was determined about 80.1% and the internal loss was 12 cm^-1 by measuring laser diodes with different cavity lengths. An uncoated 2-mm-long laser diode with 90-μm-wide aperture exhibited a threshold current density of 222 A/cm² (74 A/cm² per quantum well), a continuous wave output power of 232 mW and a quasi-continuous wave (1 kHz, 10 μs) output power of 1 W at room temperature.

Citation Download Citation

Yuzhi Song, Jiakun Song, Yu Zhang, Kangwen Li, Yun Xu, Guofeng Song, and Lianghui Chen "High-power and low-loss room temperature operation of 2.4μm GaInAsSb/AlGaAsSb type-I strained quantum-well laser diodes", Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 96710P (15 October 2015); https://doi.org/10.1117/12.2199252

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