Wavelength-tunable, GaSb-based, cascaded type-I quantum-well laser emitting over a range of 300 nm


We present a wavelength-tunable, external-cavity GaSb-based quantum-well laser operating near 3.2 μm. The laser setup consists of an intra-cavity grating in Littman-Metcalf configuration and a cascade pumped GaSb-based gain chip with a narrow-ridge waveguide. The narrow-ridge waveguide has a length of 2 mm and width of 7.5 μm. Cascade pumping is realized with three type-I quantum-wells, using one quantum-well per cascade stage. The laser provides continuous-wave output powers up to 8 mW and slope-efficiencies of 13 % at room temperature. Laser operation is demonstrated over a wavelength range of more than 300 nm, using continuous-wave and pulsed operation regimes.

Publication DOI: https://doi.org/10.1109/LPT.2018.2873049
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: National Science Foundation (Grant Number: ECCS-1408126US), Basic Energy Sciences (Grant Number: DESC0012704), Alexander von Humboldt-Stiftung
Publication ISSN: 1941-0174
Last Modified: 06 May 2024 07:26
Date Deposited: 10 Oct 2018 08:22
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Related URLs: https://ieeexpl ... cument/8478367/ (Publisher URL)
PURE Output Type: Article
Published Date: 2018-11-15
Published Online Date: 2018-10-01
Accepted Date: 2018-09-30
Authors: Chichkov, Nikolai B.
Yadav, Amit (ORCID Profile 0000-0001-7865-6905)
Zherebtsov, Evgeny (ORCID Profile 0000-0002-3635-1430)
Wang, Meng
Kipshidze, Gela
Belenky, Gregory
Shterengas, Leon
Rafailov, Edik U. (ORCID Profile 0000-0002-4152-0120)



Version: Accepted Version

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