Dual-wavelength single-crystal double-pass KTP optical parametric oscillator and its application in terahertz wave generation

Ming Tang, Hiroaki Minamide, Yuye Wang, Takashi Notake, Seigo Ohno, Hiromasa Ito

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

A tunable dual-wavelength double-pass singly resonant optical parametric oscillator based on a single KTP crystal has been proposed and demonstrated. By setting the rear mirror tuning angle precisely, collinear and noncollinear dual phase matching can be established simultaneously and leads to a two-wavelength oscillation at steady state. With high-speed KTP angle tuning, two wavelengths and their frequency difference can be adjusted continuously and accurately. By using this newly developed dual-wavelength optical parametric oscillator to pump a DAST crystal, a monochromatic terahertz wave ranging from 0.5 to 3 THz has been successfully generated in a differencefrequency generation system.

Original languageEnglish
Pages (from-to)1698-1700
Number of pages3
JournalOptics Letters
Volume35
Issue number10
DOIs
Publication statusPublished - 2010 May 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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