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Title: Widely tunable single-mode interband cascade lasers based on V-coupled cavities and dependence on design parameters
We report an investigation of V-coupled cavity interband cascade (IC) lasers (ICLs) emitting in the 3-μm wavelength range, employing various waveguide structures and coupler sizes. Type-II ICL devices with double-ridge waveguides exhibited wide tuning ranges exceeding 153 nm. Type-I ICL devices with deep-etched waveguides achieved single-mode emission with wavelength tunable over 100 nm at relatively high temperatures up to 250 K. All devices exhibited a side-mode suppression ratio higher than 30 dB. By comparing the performance of all devices with different sizes and configurations, a good tolerance against the structural parameter variations of the V-coupled cavity laser (VCCL) design is demonstrated, validating the advantages of the VCCL to achieve single-mode emission with wide tunability.  more » « less
Award ID(s):
1931193
PAR ID:
10541984
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
AVS
Date Published:
Journal Name:
Journal of Vacuum Science & Technology B
Volume:
42
Issue:
2
ISSN:
2166-2746
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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