High-power high-wall plug efficiency mid-infrared quantum cascade lasers based on InP/GaInAs/InAlAs material system

Manijeh Razeghi*

*Corresponding author for this work

Research output: Contribution to journalConference article

26 Scopus citations

Abstract

The latest result at the Center for Quantum Devices about high power, high wall plug efficiency, mid-infrared quantum cascade lasers (QCLs) is presented. At an emitting wavelength of 4.8 μm an output power of 3.4 W and a wall plug efficiency of 16.5% are demonstrated from a single device operating in continuous wave at room temperature. At a longer wavelength of 10.2 μm average power as high as 2.2 W is demonstrated at room temperature. Gas-source molecular beam epitaxy is used to grow the QCL core in an InP/GalnAs/InAlAs material system. Fe-doped semi-insulating regrowth is performed by metal organic chemical vapor deposition for efficient heat removal and low waveguide loss. This accomplishment marks an important milestone in the development of high performance mid-infrared QCLs.

Original languageEnglish (US)
Article number723011
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7230
DOIs
StatePublished - Apr 6 2009
EventNovel In-Plane Semiconductor Lasers VIII - San Jose, CA, United States
Duration: Jan 26 2009Jan 29 2009

Keywords

  • Mid infrared
  • Quantum cascade lasers
  • Wall plug efficiency

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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