High power, continuous wave, quantum cascade ring laser

Y. Bai; S. Tsao; N. Bandyopadhyay; Steven Boyd Slivken; Quanyong Lu; D. Caffey; M. Pushkarsky; T. Day; Manijeh Razeghi

doi:10.1063/1.3672049

High power, continuous wave, quantum cascade ring laser

Y. Bai^*, S. Tsao, N. Bandyopadhyay, Steven Boyd Slivken, Quanyong Lu, D. Caffey, M. Pushkarsky, T. Day, Manijeh Razeghi

^*Corresponding author for this work

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

39 Scopus citations

Abstract

We demonstrate a quantum cascade ring laser with high power room temperature continuous wave operation. A second order distributed feedback grating buried inside the waveguide provides both in-plane feedback and vertical power outcoupling. Total output power reaches 0.51 W at an emission wavelength around 4.85 m. Single mode operation persists up to 0.4 W. The far field analysis indicates that the device operates in a high order mode. The magnetic and electric components of the ring-shaped lasing beam are in radial and azimuthal directions, respectively.

Original language	English (US)
Article number	261104
Journal	Applied Physics Letters
Volume	99
Issue number	26
DOIs	https://doi.org/10.1063/1.3672049
State	Published - Dec 26 2011

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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T1 - High power, continuous wave, quantum cascade ring laser

AU - Bai, Y.

AU - Tsao, S.

AU - Bandyopadhyay, N.

AU - Slivken, Steven Boyd

AU - Lu, Quanyong

AU - Caffey, D.

AU - Pushkarsky, M.

AU - Day, T.

AU - Razeghi, Manijeh

PY - 2011/12/26

Y1 - 2011/12/26

N2 - We demonstrate a quantum cascade ring laser with high power room temperature continuous wave operation. A second order distributed feedback grating buried inside the waveguide provides both in-plane feedback and vertical power outcoupling. Total output power reaches 0.51 W at an emission wavelength around 4.85 m. Single mode operation persists up to 0.4 W. The far field analysis indicates that the device operates in a high order mode. The magnetic and electric components of the ring-shaped lasing beam are in radial and azimuthal directions, respectively.

AB - We demonstrate a quantum cascade ring laser with high power room temperature continuous wave operation. A second order distributed feedback grating buried inside the waveguide provides both in-plane feedback and vertical power outcoupling. Total output power reaches 0.51 W at an emission wavelength around 4.85 m. Single mode operation persists up to 0.4 W. The far field analysis indicates that the device operates in a high order mode. The magnetic and electric components of the ring-shaped lasing beam are in radial and azimuthal directions, respectively.

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