Enhanced terahertz source based on external cavity difference-frequency generation using monolithic single-frequency pulsed fiber lasers

Eliot B. Petersen, Wei Shi, Dan T. Nguyen, Zhidong Yao, Jie Zong, Arturo Chavez-Pirson, N. Peyghambarian

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We demonstrate a resonant external cavity approach to enhance narrowband terahertz radiation through differencefrequency 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.

Original languageEnglish (US)
Pages (from-to)2170-2172
Number of pages3
JournalOptics letters
Volume35
Issue number13
DOIs
StatePublished - Jul 1 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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