Photonic crystal distributed feedback quantum cascade lasers with 12 W output power

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

doi:10.1063/1.3182567

Photonic crystal distributed feedback quantum cascade lasers with 12 W output power

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

^*Corresponding author for this work

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

48 Scopus citations

Abstract

We demonstrate room temperature, high power, and diffraction limited operation of photonic crystal distributed feedback (PCDFB) quantum cascade lasers emitting around 4.7 μm. PCDFB gratings with three distinctive periods are fabricated on the same wafer. Peak output power up to 12 W is demonstrated. Lasers with different periods show expected wavelength shifts according to the design. Dual mode spectra are attributed to a purer index coupling by putting the grating layer 100 nm away from the laser core. Single lobed diffraction limited far field profiles are observed.

Original language	English (US)
Article number	031105
Journal	Applied Physics Letters
Volume	95
Issue number	3
DOIs	https://doi.org/10.1063/1.3182567
State	Published - 2009

Funding

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

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3182567

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title = "Photonic crystal distributed feedback quantum cascade lasers with 12 W output power",

abstract = "We demonstrate room temperature, high power, and diffraction limited operation of photonic crystal distributed feedback (PCDFB) quantum cascade lasers emitting around 4.7 μm. PCDFB gratings with three distinctive periods are fabricated on the same wafer. Peak output power up to 12 W is demonstrated. Lasers with different periods show expected wavelength shifts according to the design. Dual mode spectra are attributed to a purer index coupling by putting the grating layer 100 nm away from the laser core. Single lobed diffraction limited far field profiles are observed.",

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

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

year = "2009",

doi = "10.1063/1.3182567",

language = "English (US)",

volume = "95",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Photonic crystal distributed feedback quantum cascade lasers with 12 W output power

AU - Bai, Y.

AU - Gokden, B.

AU - Darvish, S. R.

AU - Slivken, S.

AU - Razeghi, M.

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

PY - 2009

Y1 - 2009

N2 - We demonstrate room temperature, high power, and diffraction limited operation of photonic crystal distributed feedback (PCDFB) quantum cascade lasers emitting around 4.7 μm. PCDFB gratings with three distinctive periods are fabricated on the same wafer. Peak output power up to 12 W is demonstrated. Lasers with different periods show expected wavelength shifts according to the design. Dual mode spectra are attributed to a purer index coupling by putting the grating layer 100 nm away from the laser core. Single lobed diffraction limited far field profiles are observed.

AB - We demonstrate room temperature, high power, and diffraction limited operation of photonic crystal distributed feedback (PCDFB) quantum cascade lasers emitting around 4.7 μm. PCDFB gratings with three distinctive periods are fabricated on the same wafer. Peak output power up to 12 W is demonstrated. Lasers with different periods show expected wavelength shifts according to the design. Dual mode spectra are attributed to a purer index coupling by putting the grating layer 100 nm away from the laser core. Single lobed diffraction limited far field profiles are observed.

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Photonic crystal distributed feedback quantum cascade lasers with 12 W output power

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