Design of a terahertz parametric oscillator based on a resonant cavity in a terahertz waveguide

K. Saito, T. Tanabe, Y. Oyama

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We demonstrate ns-pulsed pumping of terahertz (THz) parametric oscillations in a quasi-triply resonant cavity in a THz waveguide. The THz waves, down converted through parametric interactions between the pump and signal waves at telecom frequencies, are confined to a GaP single mode ridge waveguide. By combining the THz waveguide with a quasi-triply resonant cavity, the nonlinear interactions can be enhanced. A low threshold pump intensity for parametric oscillations can be achieved in the cavity waveguide. The THz output power can be maximized by optimizing the quality factors of the cavity so that an optical to THz photon conversion efficiency, ηp, of 0.35, which is near the quantum-limit level, can be attained. The proposed THz optical parametric oscillator can be utilized as an efficient and monochromatic THz source.

Original languageEnglish
Article number043108
JournalJournal of Applied Physics
Volume116
Issue number4
DOIs
Publication statusPublished - 2014 Jul 28
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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