Continuous-wave mid-infrared VCSELs

Continuous-wave mid-infrared VCSELs

We report the continuous-wave operation of an optically pumped mid-infrared (mid-IR) vertical-cavity surface-emitting laser (VCSEL). The active region consisting of type-II antimonide quantum wells with a "W" configuration occupies a cavity formed by a semiconductor bottom mirror and diele...

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Veröffentlicht in:IEEE photonics technology letters 1998-05, Vol.10 (5), p.660-662
Hauptverfasser: Bewley, W.W., Felix, C.L., Vurgaftman, I., Aifer, E.H., Meyer, J.R., Goldberg, L., Lindle, J.R., Chow, D.H., Selvig, E.
Format: Artikel
Sprache:eng
Schlagworte:
Laser excitation
Mirrors
Optical pumping
Optical surface waves
Pump lasers
Quantum well lasers
Semiconductor lasers
Stimulated emission
Surface emitting lasers
Vertical cavity surface emitting lasers
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Beschreibung
Zusammenfassung:We report the continuous-wave operation of an optically pumped mid-infrared (mid-IR) vertical-cavity surface-emitting laser (VCSEL). The active region consisting of type-II antimonide quantum wells with a "W" configuration occupies a cavity formed by a semiconductor bottom mirror and dielectric top mirror. The emission wavelength of 2.9 μm is nearly independent of temperature (d/spl lambda//dT/spl ap/0.09 nm/K) compared to type-II edge-emitters and the multimode linewidth is narrow (2.9 nm). At T=78 K, the threshold pump intensity is /spl ap/940 W/cm 2 , the peak output power from a 50-μm spot is 45 mW, and the differential power conversion efficiency is 4.5%. Lasing is observed up to T=160 K.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.669235