High power RT quasi-CW 4.6um quantum cascade laser (QCL) arrays

X. J. Wang; H. Quach; R. Ceballos; T. Massimino; L. Chen; C. Luu; M. Matsuki; R. May

doi:10.1117/12.2650844

15 March 2023 High power RT quasi-CW 4.6um quantum cascade laser (QCL) arrays

X. J. Wang, H. Quach, R. Ceballos, T. Massimino, L. Chen, C. Luu, M. Matsuki, R. May

Proceedings Volume 12440, Novel In-Plane Semiconductor Lasers XXII; 124400P (2023) https://doi.org/10.1117/12.2650844
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

4.6um QCL arrays with different emitter number are fabricated and their device results are reported; an 8-emitter laser array, epi-down mounted on copper heat sink, outputs ~12 watts peak optical power @ 20us pulse width 4% Duty Cycle, and ~8 Watts with 100us pulse width 20% duty cycle, at 9.6A current, room temperature. A similar laser array with 7 emitters was measured to have a Visibility (V) greater than 0.9 in an external cavity. A 3D thermal model has been established to simulate QCL arrays, including all the epi-layers and packaging elements; suggestions to improve the performances further are proposed.

Citation Download Citation

X. J. Wang, H. Quach, R. Ceballos, T. Massimino, L. Chen, C. Luu, M. Matsuki, and R. May "High power RT quasi-CW 4.6um quantum cascade laser (QCL) arrays", Proc. SPIE 12440, Novel In-Plane Semiconductor Lasers XXII, 124400P (15 March 2023); https://doi.org/10.1117/12.2650844

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