High-power CW mid-IR quantum cascade lasers

J. R. Meyer; W. W. Bewley; J. R. Lindle; Vurgaftman; A. J. Evans; J. S. Yu; S. Slivken; M. Razeghi

doi:10.1117/12.597072

High-power CW mid-IR quantum cascade lasers

J. R. Meyer^*, W. W. Bewley, J. R. Lindle, Vurgaftman, A. J. Evans, J. S. Yu, S. Slivken, M. Razeghi

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report the cw operation of quantum cascade lasers that do not require cryogenic cooling and emit at λ, = 4.7-6.2 μm. At 200 K, more than 1 W of output power is obtained from 12-μm-wide stripes, with a wall-plug efficiency (η _wall) near 10%. Room-temperature cw operation has also been demonstrated, with a maximum output power of 640 mW (η _wall = 4.5%) at 6 μm and 260 mW (η _wall = 2.3%) at 4.8 μm. Far-field characterization indicates that whereas the beam quality remains close to the diffraction limit in all of the tested lasers, in the devices emitting at 6.2 μm the beam tends to steer by as much as 5-10° in either direction with varying temperature and pump current.

Original language	English (US)
Article number	23
Pages (from-to)	161-168
Number of pages	8
Journal	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	5732
DOIs	https://doi.org/10.1117/12.597072
State	Published - 2005
Event	Quantum Sensing and Nanophotonic Devices II - San Jose, CA, United States Duration: Jan 23 2005 → Jan 27 2005

Keywords

Diode laser
Mid-infrared
Quantum cascade laser
Quantum well

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Radiology Nuclear Medicine and imaging
Biomaterials

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10.1117/12.597072

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@article{d01250460f214e73a1c34de47392dc6b,

title = "High-power CW mid-IR quantum cascade lasers",

abstract = "We report the cw operation of quantum cascade lasers that do not require cryogenic cooling and emit at λ, = 4.7-6.2 μm. At 200 K, more than 1 W of output power is obtained from 12-μm-wide stripes, with a wall-plug efficiency (η wall) near 10%. Room-temperature cw operation has also been demonstrated, with a maximum output power of 640 mW (η wall = 4.5%) at 6 μm and 260 mW (η wall = 2.3%) at 4.8 μm. Far-field characterization indicates that whereas the beam quality remains close to the diffraction limit in all of the tested lasers, in the devices emitting at 6.2 μm the beam tends to steer by as much as 5-10° in either direction with varying temperature and pump current.",

keywords = "Diode laser, Mid-infrared, Quantum cascade laser, Quantum well",

author = "Meyer, {J. R.} and Bewley, {W. W.} and Lindle, {J. R.} and Vurgaftman and Evans, {A. J.} and Yu, {J. S.} and S. Slivken and M. Razeghi",

year = "2005",

doi = "10.1117/12.597072",

language = "English (US)",

volume = "5732",

pages = "161--168",

journal = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

issn = "1605-7422",

publisher = "SPIE",

note = "Quantum Sensing and Nanophotonic Devices II ; Conference date: 23-01-2005 Through 27-01-2005",

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TY - JOUR

T1 - High-power CW mid-IR quantum cascade lasers

AU - Meyer, J. R.

AU - Bewley, W. W.

AU - Lindle, J. R.

AU - Vurgaftman,

AU - Evans, A. J.

AU - Yu, J. S.

AU - Slivken, S.

AU - Razeghi, M.

PY - 2005

Y1 - 2005

N2 - We report the cw operation of quantum cascade lasers that do not require cryogenic cooling and emit at λ, = 4.7-6.2 μm. At 200 K, more than 1 W of output power is obtained from 12-μm-wide stripes, with a wall-plug efficiency (η wall) near 10%. Room-temperature cw operation has also been demonstrated, with a maximum output power of 640 mW (η wall = 4.5%) at 6 μm and 260 mW (η wall = 2.3%) at 4.8 μm. Far-field characterization indicates that whereas the beam quality remains close to the diffraction limit in all of the tested lasers, in the devices emitting at 6.2 μm the beam tends to steer by as much as 5-10° in either direction with varying temperature and pump current.

AB - We report the cw operation of quantum cascade lasers that do not require cryogenic cooling and emit at λ, = 4.7-6.2 μm. At 200 K, more than 1 W of output power is obtained from 12-μm-wide stripes, with a wall-plug efficiency (η wall) near 10%. Room-temperature cw operation has also been demonstrated, with a maximum output power of 640 mW (η wall = 4.5%) at 6 μm and 260 mW (η wall = 2.3%) at 4.8 μm. Far-field characterization indicates that whereas the beam quality remains close to the diffraction limit in all of the tested lasers, in the devices emitting at 6.2 μm the beam tends to steer by as much as 5-10° in either direction with varying temperature and pump current.

KW - Diode laser

KW - Mid-infrared

KW - Quantum cascade laser

KW - Quantum well

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U2 - 10.1117/12.597072

DO - 10.1117/12.597072

M3 - Conference article

AN - SCOPUS:21844441607

SN - 1605-7422

VL - 5732

SP - 161

EP - 168

JO - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

JF - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

M1 - 23

T2 - Quantum Sensing and Nanophotonic Devices II

Y2 - 23 January 2005 through 27 January 2005

ER -

High-power CW mid-IR quantum cascade lasers

Abstract

Keywords

ASJC Scopus subject areas

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