Laterally coupled DFB interband cascade laser with tapered ridge
Abstract
In this work, single-mode distributed feedback interband cascade lasers with tapered ridges are presented. The lasers consists of a 500 μm long and 5.7 μm wide ridge wave guide section followed by a 1400 μm long tapered section with an output facet width of 35 μm. The device is operational in continuous wave mode and well above room temperature. At 25°C, the threshold current and threshold current density were 81 mA and 324 A/cm², respectively. We demonstrate a tuning range of over 14 nm with side mode suppression ratios larger than 25 dB. The device showed temperature and injection power tuning coefficients of 0,35 nm/K and 4.09 nm/W, respectively. Output powers of 18 mW single mode and 35 mW multimode were achieved.
Citation
Becker , S , Scheuermann , J , Weih , R , Nähle , L , König , O , Fischer , M , Köth , J , Höfling , S & Kamp , M 2017 , ' Laterally coupled DFB interband cascade laser with tapered ridge ' , Electronics Letters , vol. 53 , no. 11 , pp. 743-744 . https://doi.org/10.1049/el.2017.0853
Publication
Electronics Letters
Status
Peer reviewed
ISSN
0013-5194Type
Journal article
Rights
© 2017, The Institution of Engineering and Technology. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.theiet.org / https://doi.org/10.1049/el.2017.0853
Description
Financial support by the German Federal Ministry of Education and Research in terms of the APOSEMA project (contract no: 13N13083) within the funding program Photonics Research Germany is gratefully acknowledged.Collections
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