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

F. Wang; S. Slivken; D. H. Wu; M. Razeghi

doi:10.1063/5.0012925

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

F. Wang, S. Slivken, D. H. Wu, M. Razeghi^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

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 cascade laser with a cavity length of 5 mm delivers more than ∼15 W output power, and its wall-plug efficiency exceeds ∼20% at 100 °C. The experimental results of the lasers are well in agreement with the numerical predictions.

Original language	English (US)
Article number	075012
Journal	AIP Advances
Volume	10
Issue number	7
DOIs	https://doi.org/10.1063/5.0012925
State	Published - Jul 1 2020

Funding

This manuscript is partially based on the work supported by the Office of Naval Research under Contract No. N00014-19-C-1049. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Office of Naval Research.

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Room temperature quantum cascade laser with ∼ 31% wall-plug efficiency",

abstract = "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 cascade laser with a cavity length of 5 mm delivers more than ∼15 W output power, and its wall-plug efficiency exceeds ∼20% at 100 °C. The experimental results of the lasers are well in agreement with the numerical predictions.",

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AU - Wang, F.

AU - Slivken, S.

AU - Wu, D. H.

AU - Razeghi, M.

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Y1 - 2020/7/1

N2 - 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 cascade laser with a cavity length of 5 mm delivers more than ∼15 W output power, and its wall-plug efficiency exceeds ∼20% at 100 °C. The experimental results of the lasers are well in agreement with the numerical predictions.

AB - 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 cascade laser with a cavity length of 5 mm delivers more than ∼15 W output power, and its wall-plug efficiency exceeds ∼20% at 100 °C. The experimental results of the lasers are well in agreement with the numerical predictions.

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

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