High power broad area quantum cascade lasers

Y. Bai; S. Slivken; S. R. Darvish; A. Haddadi; B. Gokden; M. Razeghi

doi:10.1063/1.3270043

High power broad area quantum cascade lasers

Y. Bai^*, S. Slivken, S. R. Darvish, A. Haddadi, B. Gokden, M. Razeghi

^*Corresponding author for this work

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

100 Scopus citations

Abstract

Broad area quantum cascade lasers (QCLs) are studied with ridge widths up to 400 μm, in room temperature pulsed mode operation at an emission wavelength around 4.45 μm. The peak output power scales linearly with the ridge width. A maximum total peak output power of 120 W is obtained from a single 400-μm -wide device with a cavity length of 3 mm. A stable far field emission characteristic is observed with dual lobes at ±38° for all tested devices, which suggests that these broad area QCLs are highly resistant to filamentation.

Original language	English (US)
Article number	221104
Journal	Applied Physics Letters
Volume	95
Issue number	22
DOIs	https://doi.org/10.1063/1.3270043
State	Published - 2009

Funding

The authors would like to acknowledge the support, interest, and encouragement of R. Leheny, H. Temkin, and M. Rosker from Defense Advanced Research Projects Agency, M. E. Gross from Office of Naval Research, and experts from Naval Research Laboratory and Army Research Office.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3270043

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title = "High power broad area quantum cascade lasers",

abstract = "Broad area quantum cascade lasers (QCLs) are studied with ridge widths up to 400 μm, in room temperature pulsed mode operation at an emission wavelength around 4.45 μm. The peak output power scales linearly with the ridge width. A maximum total peak output power of 120 W is obtained from a single 400-μm -wide device with a cavity length of 3 mm. A stable far field emission characteristic is observed with dual lobes at ±38° for all tested devices, which suggests that these broad area QCLs are highly resistant to filamentation.",

author = "Y. Bai and S. Slivken and Darvish, {S. R.} and A. Haddadi and B. Gokden and M. Razeghi",

note = "Funding Information: The authors would like to acknowledge the support, interest, and encouragement of R. Leheny, H. Temkin, and M. Rosker from Defense Advanced Research Projects Agency, M. E. Gross from Office of Naval Research, and experts from Naval Research Laboratory and Army Research Office.",

year = "2009",

doi = "10.1063/1.3270043",

language = "English (US)",

volume = "95",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - High power broad area quantum cascade lasers

AU - Bai, Y.

AU - Slivken, S.

AU - Darvish, S. R.

AU - Haddadi, A.

AU - Gokden, B.

AU - Razeghi, M.

N1 - Funding Information: The authors would like to acknowledge the support, interest, and encouragement of R. Leheny, H. Temkin, and M. Rosker from Defense Advanced Research Projects Agency, M. E. Gross from Office of Naval Research, and experts from Naval Research Laboratory and Army Research Office.

PY - 2009

Y1 - 2009

N2 - Broad area quantum cascade lasers (QCLs) are studied with ridge widths up to 400 μm, in room temperature pulsed mode operation at an emission wavelength around 4.45 μm. The peak output power scales linearly with the ridge width. A maximum total peak output power of 120 W is obtained from a single 400-μm -wide device with a cavity length of 3 mm. A stable far field emission characteristic is observed with dual lobes at ±38° for all tested devices, which suggests that these broad area QCLs are highly resistant to filamentation.

AB - Broad area quantum cascade lasers (QCLs) are studied with ridge widths up to 400 μm, in room temperature pulsed mode operation at an emission wavelength around 4.45 μm. The peak output power scales linearly with the ridge width. A maximum total peak output power of 120 W is obtained from a single 400-μm -wide device with a cavity length of 3 mm. A stable far field emission characteristic is observed with dual lobes at ±38° for all tested devices, which suggests that these broad area QCLs are highly resistant to filamentation.

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High power broad area quantum cascade lasers

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