Substrate emission quantum cascade ring lasers with room temperature continuous wave operation

Y. Bai*, S. Tsao, N. Bandyopadhyay, S. Slivken, Q. Y. Lu, M. Razeghi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate room temperature, continuous wave operation of quantum cascade ring lasers around 5 μm with single mode operation up to 0.51 W output power. Single mode operation persists up to 0.4 W. Light is coupled out of the ring cavity through the substrate with a second order distributed feedback grating. The substrate emission scheme allows for epilayer-down bonding, which leads to room temperature continuous wave operation. The far field analysis indicates that the device operates in a high order mode.

Original languageEnglish (US)
Title of host publicationQuantum Sensing and Nanophotonic Devices IX
DOIs
StatePublished - Feb 20 2012
EventQuantum Sensing and Nanophotonic Devices IX - San Francisco, CA, United States
Duration: Jan 22 2012Jan 26 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8268
ISSN (Print)0277-786X

Other

OtherQuantum Sensing and Nanophotonic Devices IX
CountryUnited States
CitySan Francisco, CA
Period1/22/121/26/12

Keywords

  • quantum cascade laser
  • ring laser
  • surface emission

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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