Generation of picosecond pulses and frequency combs in actively mode locked external ring cavity quantum cascade lasers

Year: 2013

Authors: Wojcik A.K., Malara P., Blanchard R., Mansuripur T.S., Capasso F., Belyanin A.

Autors Affiliation: Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843-4242, USA; School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA; Consiglio Nazionale delle Ricerche—Istituto Nazionale di Ottica, and European Laboratory for Nonlinear Spectroscopy (LENS), 80078 Pozzuoli (NA), Italy

Abstract: We propose a robust and reliable method of active mode locking of mid-infrared quantum cascade lasers and develop its theoretical description. Its key element is the use of an external ring cavity, which circumvents fundamental issues undermining the stability of mode locking in quantum cascade lasers. We show that active mode locking can give rise to the generation of picosecond pulses and phase-locked frequency combs containing thousands of the ring cavity modes. (C) 2013 AIP Publishing LLC.


Volume: 103 (23)      Pages from: 231102  to: 231102

More Information: This work has been supported in part by NSF Grant Nos. ECCS 1230517 and EEC-0540832. T.S.M. was supported by the NSF Graduate Student Fellowship.
KeyWords: Active mode locking; External ring; Frequency combs; Mid-infrared quantum cascade; Phase-locked frequency; Pico-second pulse; Reliable methods; Ring cavities, Quantum cascade lasers; Ultrashort pulses, Locks (fasteners)
DOI: 10.1063/1.4838275

Citations: 36
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