Recent advances in quantum cascade lasers

Federico Capasso, Jerome Faist, Claire F. Gmachl, G. Scamarcio, D. L. Sivco, J. N. Baillargeon, Alfred Y. Cho

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Quantum cascade (QC) lasers are semiconductor lasers based on intersubband transitions and on electrons emitting one photon per stage as they cascade through a periodic quantum well structure. Results are presented demonstrating the high power room temperature pulsed operation from 5 to 11.6 μm, with peak powers ranging from 200 to 50 mW. Distributed feedback QC laser is also discussed. Room temperature single mode pulsed operation is obtained in these devices at wavelengths approximately 5 μm and approximately 8 μm with broad single model temperature tuning of approximately 60 nm and peak powers approximately 60 mW. Structures with loss and index gratings is also discussed.

Original languageEnglish (US)
Pages (from-to)209-210
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
StatePublished - Dec 1 1997
EventProceedings of the 1997 10th IEEE Lasers and Electro-Optics Society Annual Meeting, LEOS. Part 2 (of 2) - San Francisco, CA, USA
Duration: Nov 10 1997Nov 13 1997

All Science Journal Classification (ASJC) codes

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


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