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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 20 — Oct. 15, 2013
  • pp: 4046–4049

Tunable optical parametric amplification of a single-frequency quantum cascade laser around 8 μm in ZnGeP2

Quentin Clément, Jean-Michel Melkonian, Jessica Barrientos-Barria, Jean-Baptiste Dherbecourt, Myriam Raybaut, and Antoine Godard  »View Author Affiliations


Optics Letters, Vol. 38, Issue 20, pp. 4046-4049 (2013)
http://dx.doi.org/10.1364/OL.38.004046


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Abstract

We demonstrate optical parametric amplification in ZnGeP2 (ZGP) of the radiation emitted by a single-frequency continuous-wave quantum cascade laser (QCL) in the range 7.8–8.4 μm. The ZGP amplifier is pumped by a single-frequency parametric source at 2210 nm. For a pump energy of 6 mJ, we report an average gain of 50 over this range and a maximum gain of 111 for 7.5 mJ. An exponential trend is observed when changing the pump energy, with very good agreement with theory. These features are of valuable interest for increasing the standoff detection range of hazardous chemicals and explosives by QCL-based backscattering spectroscopy systems.

© 2013 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 6, 2013
Revised Manuscript: September 10, 2013
Manuscript Accepted: September 11, 2013
Published: October 7, 2013

Citation
Quentin Clément, Jean-Michel Melkonian, Jessica Barrientos-Barria, Jean-Baptiste Dherbecourt, Myriam Raybaut, and Antoine Godard, "Tunable optical parametric amplification of a single-frequency quantum cascade laser around 8 μm in ZnGeP2," Opt. Lett. 38, 4046-4049 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-20-4046


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