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 - Nov 16 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

Other

Other2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009
CountryUnited 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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