Room temperature quantum cascade lasers with 27% wall plug efficiency

Y. Bai; N. Bandyopadhyay; S. Tsao; S. Slivken; M. Razeghi

doi:10.1063/1.3586773

Room temperature quantum cascade lasers with 27% wall plug efficiency

Y. Bai, N. Bandyopadhyay, S. Tsao, S. Slivken, M. Razeghi^*

^*Corresponding author for this work

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

360 Scopus citations

Abstract

Using the recently proposed shallow-well design, we demonstrate InP based quantum cascade lasers (QCLs) emitting around 4.9 μm with 27% and 21% wall plug efficiencies in room temperature (298 K) pulsed and continuous wave (cw) operations, respectively. The laser core consists of 40 QCL-stages. The highest cw efficiency is obtained from a buried-ridge device with a ridge width of 8 μm and a cavity length of 5 mm. The front and back facets are antireflection and high-reflection coated, respectively. The maximum single facet cw power at room temperature amounts to 5.1 W.

Original language	English (US)
Article number	181102
Journal	Applied Physics Letters
Volume	98
Issue number	18
DOIs	https://doi.org/10.1063/1.3586773
State	Published - May 2 2011

Funding

The authors would like to acknowledge the support, interest, and encouragement of Dr. R. S. Rodgers and Dr. M. Rosker from Defense Advanced Research Projects Agency, Dr. T. Manzur from Naval Air Warfare Center, and Dr. J. Meyer from Naval Research Laboratory.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Room temperature quantum cascade lasers with 27% wall plug efficiency",

abstract = "Using the recently proposed shallow-well design, we demonstrate InP based quantum cascade lasers (QCLs) emitting around 4.9 μm with 27% and 21% wall plug efficiencies in room temperature (298 K) pulsed and continuous wave (cw) operations, respectively. The laser core consists of 40 QCL-stages. The highest cw efficiency is obtained from a buried-ridge device with a ridge width of 8 μm and a cavity length of 5 mm. The front and back facets are antireflection and high-reflection coated, respectively. The maximum single facet cw power at room temperature amounts to 5.1 W.",

author = "Y. Bai and N. Bandyopadhyay and S. Tsao and S. Slivken and M. Razeghi",

note = "Funding Information: The authors would like to acknowledge the support, interest, and encouragement of Dr. R. S. Rodgers and Dr. M. Rosker from Defense Advanced Research Projects Agency, Dr. T. Manzur from Naval Air Warfare Center, and Dr. J. Meyer from Naval Research Laboratory.",

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AU - Bai, Y.

AU - Bandyopadhyay, N.

AU - Tsao, S.

AU - Slivken, S.

AU - Razeghi, M.

N1 - Funding Information: The authors would like to acknowledge the support, interest, and encouragement of Dr. R. S. Rodgers and Dr. M. Rosker from Defense Advanced Research Projects Agency, Dr. T. Manzur from Naval Air Warfare Center, and Dr. J. Meyer from Naval Research Laboratory.

PY - 2011/5/2

Y1 - 2011/5/2

N2 - Using the recently proposed shallow-well design, we demonstrate InP based quantum cascade lasers (QCLs) emitting around 4.9 μm with 27% and 21% wall plug efficiencies in room temperature (298 K) pulsed and continuous wave (cw) operations, respectively. The laser core consists of 40 QCL-stages. The highest cw efficiency is obtained from a buried-ridge device with a ridge width of 8 μm and a cavity length of 5 mm. The front and back facets are antireflection and high-reflection coated, respectively. The maximum single facet cw power at room temperature amounts to 5.1 W.

AB - Using the recently proposed shallow-well design, we demonstrate InP based quantum cascade lasers (QCLs) emitting around 4.9 μm with 27% and 21% wall plug efficiencies in room temperature (298 K) pulsed and continuous wave (cw) operations, respectively. The laser core consists of 40 QCL-stages. The highest cw efficiency is obtained from a buried-ridge device with a ridge width of 8 μm and a cavity length of 5 mm. The front and back facets are antireflection and high-reflection coated, respectively. The maximum single facet cw power at room temperature amounts to 5.1 W.

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Room temperature quantum cascade lasers with 27% wall plug efficiency

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