lambda \sim \ \mum Distributed-Feedback Quantum-Cascade Lasers With High-Aspect-Ratio Lateral Grating

lambda \sim \ \mum Distributed-Feedback Quantum-Cascade Lasers With High-Aspect-Ratio Lateral Grating

We report the development of room-temperature distributed-feedback quantum-cascade lasers operating in a single mode in the 3.34 to 3.35 μm wavelength range. First-order lateral gratings with high aspect ratio (the ratio between the grating etch depth and its period) were formed using inductively co...

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Veröffentlicht in:IEEE photonics technology letters 2011-04, Vol.23 (7), p.420-422
Hauptverfasser: Slight, T J, Tandoi, G, Revin, D G, McKee, A, Zhang, S Y, Meredith, W, Cockburn, J W, Ironside, C N
Format: Artikel
Sprache:eng
Schlagworte:
Distributed feedback devices
Distributed-feedback (DFB) devices
Gas lasers
Gratings
Indium phosphide
optical tuning
Optical waveguides
Quantum cascade lasers
quantum-cascade lasers (QCLs)
Tuning
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Zusammenfassung:We report the development of room-temperature distributed-feedback quantum-cascade lasers operating in a single mode in the 3.34 to 3.35 μm wavelength range. First-order lateral gratings with high aspect ratio (the ratio between the grating etch depth and its period) were formed using inductively coupled plasma etching. The as-cleaved lasers emit in pulsed regime with a sidemode suppression ratio of up to 24 dB and a peak single-mode output power of 130 mW from a single facet.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2103358