High-power/low-threshold type-II interband cascade mid-IR laser-design and modeling
- 1 February 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 9 (2) , 170-172
- https://doi.org/10.1109/68.553079
Abstract
We present an optimized design and detailed numerical simulations for a mid-IR type-II interband InGaSb QW cascade laser (T2ICL) with InAs-In/sub 0.3/Ga/sub 0.7/Sb active quantum wells. It is shown that a 15-period T2ICL operating at 300 K and emitting at 3.15 /spl mu/m should achieve a much higher differential quantum efficiency (maximum of 0.9 W/A per facet at 300 K) than conventional mid-IR bipolar injection lasers, and a threshold current density much lower than for the intersubband quantum cascade laser.Keywords
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