InGaAs/AlInAs quantum cascade laser sources based on intra-cavity second harmonic generation emitting in 2.6-3.6 micron range

M. A. Belkin, M. Jang, R. W. Adams, J. X. Chen, W. O. Charles, Claire F. Gmachl, L. W. Cheng, F. S. Choa, X. Wang, M. Troccoli, A. Vizbaras, M. Anders, C. Grasse, M. C. Amann

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

3 Scopus citations

Abstract

We discuss the design and performance of quantum cascade laser sources based on intra-cavity second harmonic generation operating in at wavelengths shorter than 3.7μm. A passive heterostructure tailored for giant optical nonlinearity is integrated on top of an active region and patterned for quasi-phasematching. We demonstrate operation of λ≈3.6μm, λ≈3.0μm, and λ≈2.6μm devices based on lattice-matched and strain-compensated InGaAs/AlInAs/InP materials. Threshold current densities of typical devices with nonlinear sections are only 10-20% higher than that of the reference lasers without the nonlinear section. Our best devices have threshold current density of 2.2kA/cm2 and provide approximately 35μW of second-harmonic output at 2.95μm at room temperature. The second-harmonic conversion efficiency is approximately 100μW/W2. Up to two orders of magnitude higher conversion efficiencies are expected in fully-optimized devices. Keywords:

Original languageEnglish (US)
Title of host publicationNovel In-Plane Semiconductor Lasers X
DOIs
StatePublished - Mar 31 2011
EventNovel In-Plane Semiconductor Lasers X - San Francisco, CA, United States
Duration: Jan 25 2011Jan 28 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7953
ISSN (Print)0277-786X

Other

OtherNovel In-Plane Semiconductor Lasers X
CountryUnited States
CitySan Francisco, CA
Period1/25/111/28/11

All Science Journal Classification (ASJC) codes

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

Keywords

  • Giant nonlinear susceptibility
  • Intersubband
  • Quantum cascade lasers
  • Quasi-phase matching
  • Room temperature
  • Second harmonic generation
  • Short wavelength

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    Belkin, M. A., Jang, M., Adams, R. W., Chen, J. X., Charles, W. O., Gmachl, C. F., Cheng, L. W., Choa, F. S., Wang, X., Troccoli, M., Vizbaras, A., Anders, M., Grasse, C., & Amann, M. C. (2011). InGaAs/AlInAs quantum cascade laser sources based on intra-cavity second harmonic generation emitting in 2.6-3.6 micron range. In Novel In-Plane Semiconductor Lasers X [795315] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7953). https://doi.org/10.1117/12.879232