2.4 W room temperature continuous wave operation of distributed feedback quantum cascade lasers

Quanyong Lu; Y. Bai; N. Bandyopadhyay; Steven Boyd Slivken; Manijeh Razeghi

doi:10.1063/1.3588412

2.4 W room temperature continuous wave operation of distributed feedback quantum cascade lasers

Quanyong Lu, Y. Bai, N. Bandyopadhyay, Steven Boyd Slivken, Manijeh Razeghi^*

^*Corresponding author for this work

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

109 Scopus citations

Abstract

We demonstrate high power continuous-wave room-temperature operation surface-grating distributed feedback quantum cascade lasers at 4.8 μm. High power single mode operation benefits from a combination of high-reflection and antireflection coatings. Maximum single-facet continuous-wave output power of 2.4 W and peak wall plug efficiency of 10% from one facet is obtained at 298 K. Single mode operation with a side mode suppression ratio of 30 dB and single-lobed far field without beam steering is observed.

Original language	English (US)
Article number	181106
Journal	Applied Physics Letters
Volume	98
Issue number	18
DOIs	https://doi.org/10.1063/1.3588412
State	Published - May 2 2011

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We demonstrate high power continuous-wave room-temperature operation surface-grating distributed feedback quantum cascade lasers at 4.8 μm. High power single mode operation benefits from a combination of high-reflection and antireflection coatings. Maximum single-facet continuous-wave output power of 2.4 W and peak wall plug efficiency of 10% from one facet is obtained at 298 K. Single mode operation with a side mode suppression ratio of 30 dB and single-lobed far field without beam steering is observed.",

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AU - Lu, Quanyong

AU - Bai, Y.

AU - Bandyopadhyay, N.

AU - Slivken, Steven Boyd

AU - Razeghi, Manijeh

PY - 2011/5/2

Y1 - 2011/5/2

N2 - We demonstrate high power continuous-wave room-temperature operation surface-grating distributed feedback quantum cascade lasers at 4.8 μm. High power single mode operation benefits from a combination of high-reflection and antireflection coatings. Maximum single-facet continuous-wave output power of 2.4 W and peak wall plug efficiency of 10% from one facet is obtained at 298 K. Single mode operation with a side mode suppression ratio of 30 dB and single-lobed far field without beam steering is observed.

AB - We demonstrate high power continuous-wave room-temperature operation surface-grating distributed feedback quantum cascade lasers at 4.8 μm. High power single mode operation benefits from a combination of high-reflection and antireflection coatings. Maximum single-facet continuous-wave output power of 2.4 W and peak wall plug efficiency of 10% from one facet is obtained at 298 K. Single mode operation with a side mode suppression ratio of 30 dB and single-lobed far field without beam steering is observed.

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2.4 W room temperature continuous wave operation of distributed feedback quantum cascade lasers

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