Room temperature operation of single mode GaSb‐based DFB interband cascade lasers beyond 6.1 µm-Reference-Cited by-同舟云学术

Room temperature operation of single mode GaSb‐based DFB interband cascade lasers beyond 6.1 µm

Published:2023-10 Issue:19 Volume:59 Page:
ISSN:0013-5194
Container-title:Electronics Letters
language:en
Short-container-title:Electronics Letters

Author:

Nauschütz Josephine¹^ORCID,Scheuermann Julian¹,Weih Robert¹,Koeth Johannes¹,Schwarz Benedikt²,Höfling Sven³

Affiliation:

1. Nanoplus Nanosystems and Technologies GmbH Oberer Kirschberg 4 Gerbrunn Germany

2. Institute of Solid State Electronics TU Wien Gusshausstr. 25‐25a Vienna Austria

3. Physikalisches Institut and Wilhelm Conrad Röntgen Research Center for Complex Material Systems Universität Würzburg Am Hubland Würzburg Germany

Abstract

AbstractSingle‐mode distributed feedback GaSb‐based interband cascade lasers with record emission beyond 6.1 µm are presented. The results are based on an epitaxial design with reduced resonant intersubband absorption in the valence band and rebalanced internally generated carriers. The epi‐down mounted 8 µm wide and 1 mm long laser chip is operated in continuous wave mode at room temperature and covers a bandwidth of over 20 nm with temperature and current tuning. At 25°C more than 4 mW of optical output power was measured.

Publisher

Institution of Engineering and Technology (IET)

Subject

Electrical and Electronic Engineering

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