Paper
27 February 2014 Cascade pumping of GaSb-based type-I quantum well diode lasers
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Abstract
Cascade GaSb-based type-I quantum well diode lasers were designed and fabricated. Cascade pumping was achieved utilizing efficient interband tunneling through "leaky" window in band alignment at GaSb/InAs heterointerface. The 100% efficient carrier recycling between stages was confirmed by twofold increase lightcurrent characteristics slope of two-stage 2.4 – 3.3 μm cascade lasers as compared to reference single-stage devices. Moderate internal optical loss increase was observed in cascade lasers with interband injector located near the optical mode peak. Cascade pumping scheme increased the continuous wave output power of room temperature operated 2.4 - 3 μm semiconductor lasers and led to improved power conversion efficiency.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Shterengas, R. Liang, G. Kipshidze, T. Hosoda, S. Suchalkin, and G. Belenky "Cascade pumping of GaSb-based type-I quantum well diode lasers", Proc. SPIE 9002, Novel In-Plane Semiconductor Lasers XIII, 900213 (27 February 2014); https://doi.org/10.1117/12.2038429
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Cited by 9 scholarly publications.
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KEYWORDS
Quantum wells

Semiconductor lasers

Quantum cascade lasers

Heterojunctions

Continuous wave operation

Diodes

Waveguides

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