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 publicationConference on Lasers and Electro-Optics, CLEO 2009
StatePublished - Dec 1 2009
EventConference on Lasers and Electro-Optics, CLEO 2009 - Baltimore, MD, United States
Duration: May 31 2009Jun 5 2009

Other

OtherConference on Lasers and Electro-Optics, CLEO 2009
CountryUnited States
CityBaltimore, MD
Period5/31/096/5/09

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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