Abstract
An optically pumped mid-infrared vertical-cavity surface-emitting laser based on an active region with a “W” configuration of type-II antimonide quantum wells is reported. The emission wavelength of 2.9 μm has a weak temperature variation (d ⋋ /dT ≈ 0.07–0.09 nm/K), and the multimode linewidth is quite narrow (2.5-4 nm). Lasing is observed up to T = 280 K in pulsed mode and up to 160 K cw. Under cw excitation at T = 78 K, the threshold pump power is as low as 4 mW for a 6 am spot, and the differential power conversion efficiency is 4.5%.
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Acknowledgement
We are grateful to F. J. Pinto for valuable interactions, and to L. Warren and C. Haeussler for technical assistance. The authors also thank Quantum Semiconductor Algorthms for use of the FEM software. Work at NRL was supported by ONR, while two of the authors (WWB and EHA) held ASEE/NRL Associateships.
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Vurgaftman, I., Bewley, W.W., Felix, C.L. et al. MID-IR Vertical Cavity Surface-Emitting Lasers. MRS Online Proceedings Library 484, 95–100 (1997). https://doi.org/10.1557/PROC-484-95
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DOI: https://doi.org/10.1557/PROC-484-95