GaSb-based interband cascade lasers with advanced waveguides operating near 3.3 and 3.4 μm

Jeremy A. Massengale; Yixuan Shen; Rui Q. Yang; Tetsuya D. Mishima; Michael B. Santos

doi:10.1117/12.2647213

15 March 2023 GaSb-based interband cascade lasers with advanced waveguides operating near 3.3 and 3.4 μm

Jeremy A. Massengale, Yixuan Shen, Rui Q. Yang, Tetsuya D. Mishima, Michael B. Santos

Proceedings Volume 12440, Novel In-Plane Semiconductor Lasers XXII; 124400B (2023) https://doi.org/10.1117/12.2647213
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We report the first implementation of an advanced waveguide structure, consisting of GaSb Separate Confinement Layers (SCLs), n-doped InAs/AlSb superlattice (SL) intermediate cladding layers, and n⁺ -doped InAs_0.91Sb_0.09 plasmon enhanced cladding layers for GaSb-based interband cascade lasers (ICLs) with lasing wavelengths at 3.3 and 3.4 µm. This advanced waveguide structure is intended to improve the optical confinement and the overall thermal conductivity of these ICLs. A room temperature (RT) threshold current density (J_th) as low as 176.9 A/cm² for a Broad Area (BA) device emitting at 3.28 µm was measured with the pulsed operation extending up to 390 K. A second ICL emitting at 3.42 µm exhibited a RT pulsed J_th of 195.6 A/cm² . The ICLs tested here had characteristic temperatures (To) of nearly 60 K, which is the highest among RT ICLs with similar lasing wavelengths, suggesting advantages of the advanced waveguide in these devices.

Conference Presentation

Citation Download Citation

Jeremy A. Massengale, Yixuan Shen, Rui Q. Yang, Tetsuya D. Mishima, and Michael B. Santos "GaSb-based interband cascade lasers with advanced waveguides operating near 3.3 and 3.4 μm", Proc. SPIE 12440, Novel In-Plane Semiconductor Lasers XXII, 124400B (15 March 2023); https://doi.org/10.1117/12.2647213

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