InAs-based distributed feedback interband cascade lasers
Date
02/11/2015Metadata
Show full item recordAbstract
Single mode emission of InAs-based interband cascade lasers using lateral metal gratings that provide distributed feedback is presented. A double ridge configuration was developed, where the grating is placed above the active region while a second, slightly wider ridge ensures current confinement in the active region. Side mode suppression ratios above 30 dB have been obtained, and single mode emission was observed at wavelengths around 6 μm in continuous-wave operation up to a temperature of -10 °C. Current- and temperature-tuning rates of 0.011 nm/mA and 0.50 nm/ °C, respectively, have been found, and a total tuning range of 6.5 nm has been covered by one device. As a reference, ridge waveguide devices without a grating made from the same material were able to emit in pulsed mode up to 49 °C and in continuous-wave operation at temperatures up to 0 °C around 6 μm.
Citation
Dallner , M , Scheuermann , J , Nähle , L , Fischer , M , Koeth , J , Höfling , S & Kamp , M 2015 , ' InAs-based distributed feedback interband cascade lasers ' , Applied Physics Letters , vol. 107 , no. 18 . https://doi.org/10.1063/1.4935076
Publication
Applied Physics Letters
Status
Peer reviewed
ISSN
0003-6951Type
Journal article
Rights
© 2015 AIP Publishing LLC. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://dx.doi.org/10.1063/1.4935076. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.
Description
The authors acknowledge the financial support from the European Commission in the frame of the FP7 project “WideLase” (Grant No. 318798).Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.