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Instantaneous power and threshold in continuous wave quantum cascade lasers

  • Anthony J. Hoffman
  • , Phillip X. Braun
  • , Matthew D. Escarra
  • , Scott S. Howard
  • , Kale J. Franz
  • , Xiaojun Wang
  • , Jen Yu Fan
  • , Claire F. Gmachl

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

Abstract

Using low-duty cycle pulses superimposed on a DC current, we determine the type of power roll-over and obtain the instantaneous threshold current, current efficiency and core temperature of a quantum-cascade laser in continuous wave operation.

Original languageEnglish (US)
Title of host publication2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009
StatePublished - 2009
Event2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009 - Baltimore, MD, United States
Duration: Jun 2 2009Jun 4 2009

Publication series

Name2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009

Other

Other2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009
Country/TerritoryUnited States
CityBaltimore, MD
Period6/2/096/4/09

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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