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
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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