Enhanced terahertz source based on external cavity difference-frequency generation using monolithic single-frequency pulsed fiber lasers
Optics Letters, Vol. 35, Issue 13, pp. 2170-2172 (2010)
http://dx.doi.org/10.1364/OL.35.002170
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Abstract
We demonstrate a resonant external cavity approach to enhance narrowband terahertz radiation through difference-frequency generation for the first time (to our knowledge). Two nanosecond laser pulses resonant in an optical cavity interact with a nonlinear crystal to produce a factor of 7 enhancement of terahertz power compared to a single-pass orientation. This external enhancement approach shows promise to significantly increase both terahertz power and conversion efficiency through optical pump pulse enhancement and effective recycling.
© 2010 Optical Society of America
OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.4780) Lasers and laser optics : Optical resonators
(140.3538) Lasers and laser optics : Lasers, pulsed
(190.4223) Nonlinear optics : Nonlinear wave mixing
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: March 4, 2010
Revised Manuscript: May 11, 2010
Manuscript Accepted: May 14, 2010
Published: June 21, 2010
Citation
Eliot B. Petersen, Wei Shi, Dan T. Nguyen, Zhidong Yao, Jie Zong, Arturo Chavez-Pirson, and N. Peyghambarian, "Enhanced terahertz source based on external cavity difference-frequency generation using monolithic single-frequency pulsed fiber lasers," Opt. Lett. 35, 2170-2172 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-13-2170
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