Self-mode-locking in quantum cascade lasers

Roberto Paiella, Federico Capasso, Claire F. Gmachl, Deborah L. Sivco, James N. Baillargeon, Albert L. Hutchinson, Alfred Y. Cho, H. C. Liu

Research output: Contribution to journalArticlepeer-review


We report on the first observation of mode-locking of quantum cascade lasers (QCLs). Both self-mode-locking (SML) and active mode-locking have been achieved, although this talk will primarily focus on SML. All the devices used in this work are 'standard' QCLs, except for their relatively long (≳ 3.5 mm) waveguides. Experimental observations indicate that the nonlinear loss mechanism responsible for SML results from self-focusing in the laser waveguide.

Original languageEnglish (US)
Pages (from-to)715-716
Number of pages2
JournalPacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest
StatePublished - Dec 1 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Self-mode-locking in quantum cascade lasers'. Together they form a unique fingerprint.

Cite this