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Conferences > CLEO > 2009 > CThC > CThC5
  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference
  • OSA Technical Digest (CD) (Optica Publishing Group, 2009),
  • paper CThC5
  • •https://doi.org/10.1364/CLEO.2009.CThC5

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, and Claire Gmachl

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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.

© 2009 Optical Society of America

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