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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 13 — Jun. 30, 2014
  • pp: 15608–15617

Quantum coherent saturable absorption for mid-infrared ultra-short pulses

Muhammad Anisuzzaman Talukder and Curtis R. Menyuk  »View Author Affiliations


Optics Express, Vol. 22, Issue 13, pp. 15608-15617 (2014)
http://dx.doi.org/10.1364/OE.22.015608


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Abstract

We theoretically show that quantum coherent saturable absorption can be used to obtain ultra-short pulses from mid-infrared quantum cascade lasers (QCLs). In this proposal, quantum cascade structures are processed as two electrically isolated sections. The two sections will be biased with two different voltages so that one of the sections produces gain as is done in typical QCLs, while the other produces quantum coherent resonant absorption for the propagating waves. The quantum coherent absorbing section is saturable and favors the generation of ultra-short pulses. We find that stable ultra-short pulses on the order of ∼100 ps are created from a two-section QCL when the pumping in the gain and absorbing sections remains within critical limits. The intensity and the duration of the stable pulses can be significantly varied when the pumping in the gain and absorbing sections and the length of the gain and absorbing sections are varied.

© 2014 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 1, 2014
Revised Manuscript: June 6, 2014
Manuscript Accepted: June 9, 2014
Published: June 18, 2014

Citation
Muhammad Anisuzzaman Talukder and Curtis R. Menyuk, "Quantum coherent saturable absorption for mid-infrared ultra-short pulses," Opt. Express 22, 15608-15617 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-13-15608


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