All-optical switching in quantum cascade lasers

C. Zervos*, M. D. Frogley, C. C. Phillips, Dmytro O. Kundys, L. R. Wilson, M. Hopkinson, M. S. Skolnick

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


The authors demonstrate the switching of the midinfrared output of a quantum cascade laser (QCL) using a near infrared control laser. The present, unoptimized, device offers 100% modulation depths, at approximately 50% of the maximum QCL output power, and has a switching energy of similar to 15 nJ. It works as a resettable photon flux integrator which would give it a retiming function if used as a component for optical free space communications.
Original languageEnglish
Article number053505
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 29 Jan 2007




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