Tapered quantum cascade lasers in the long-wavelength mid infrared region

Pinto, Davide; Kinjalk, Kumar; Meguekam, Ariane; Bahriz, Michael; Baranov, Alexei

doi:10.1117/12.2649669

Record link:

http://hdl.handle.net/20.500.12708/192038

Title:

Tapered quantum cascade lasers in the long-wavelength mid infrared region

Citation:

Pinto, D., Kinjalk, K., Meguekam, A., Bahriz, M., & Baranov, A. (2023). Tapered quantum cascade lasers in the long-wavelength mid infrared region. In M. Razeghi, G. A. Khodaparast, & M. S. Vitiello (Eds.), Quantum Sensing and Nano Electronics and Photonics XIX. https://doi.org/10.1117/12.2649669

Publisher DOI:

10.1117/12.2649669

Publication Type:

Inproceedings - Full-Paper Contribution

Language:

English

Authors:

Pinto, Davide
Kinjalk, Kumar
Meguekam, Ariane
Bahriz, Michael
Baranov, Alexei

Organisational Unit:

E164-02-1 - Forschungsgruppe Prozessanalytik

Published in:

Quantum Sensing and Nano Electronics and Photonics XIX

ISBN:

9781510659667

Volume:

12430

Date (published):

2023

Event name:

Photonics West 2023

Event date:

28-Jan-2023 - 2-Feb-2023

Event place:

San Francisco, CA, United States of America (the)

Number of Pages:

Peer reviewed:

Yes

Keywords:

long-wavelength infrared; Quantum Cascade Laser; small slow-axis divergence; Tapered lasers

Abstract:

We present an investigation on the electrical and optical properties of tapered quantum cascade lasers emitting at 14-15 μm, based on the InAs/AlSb system. In tapered lasers the active zone volume is increased to obtain higher optical power outputs without degrading the beam quality. Devices with three different taper angles of 1°, 2° and 3° were examined in terms of electrical, optical, and spectral properties and were compared with conventional ridge waveguide lasers.

Research facilities:

Analytical Instrumentation Center
Pilotfabrik
Röntgenzentrum
TRIGA Mark II-Nuklearreaktor
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
Vienna Scientific Cluster
Zentrum für Kernspinresonanzspektroskopie
Zentrum für Mikro & Nanostrukturen

Project (external):

OPTAPHI

Project ID:

860808

Research Areas:

Materials Characterization: 50%
Photonics: 50%

Science Branch:

1040 - Chemie: 100%

Appears in Collections:

Conference Paper