Room temperature quantum cascade laser with ∼31% wall-plug efficiency

In this article, we report the demonstration of a quantum cascade laser emitting at λ ≈ 4.9 μm with a wall-plug efficiency of ∼31% and an output power of ∼23 W in pulsed operation at room temperature with 50 cascade stages (Ns). With proper fabrication and packaging, this buried ridge quantum cascad...

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Bibliographic Details
Main Authors: F. Wang, S. Slivken, D. H. Wu, M. Razeghi
Format: Article
Language:English
Published: AIP Publishing LLC 2020-07-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0012925