Continuous-wave total-internal-reflection optical parametric oscillator pumped at 1064 nm

We report what is to our knowledge the first cw 1064-nm-pumped optical parametric oscillator (OPO), using a critically phase-matched (theta(pm) = 45.5 degrees ), monolithic total-internal-reflection, doubly resonant OPO fabricated from congruent LiNbO(3). Frustrated total-internal-reflection provide...

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Bibliographic Details
Published inOptics letters Vol. 19; no. 14; p. 1046
Main Authors Serkland, D K, Eckardt, R C, Byer, R L
Format Journal Article
LanguageEnglish
Published United States 15.07.1994
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Summary:We report what is to our knowledge the first cw 1064-nm-pumped optical parametric oscillator (OPO), using a critically phase-matched (theta(pm) = 45.5 degrees ), monolithic total-internal-reflection, doubly resonant OPO fabricated from congruent LiNbO(3). Frustrated total-internal-reflection provides variable output coupling for the signal and the idler. The measured finesse of 6000 at 2014 nm implies a round-trip power loss of 0.1%. The low round-trip power losses compensate the 2 degrees Poynting vector walk-off and give a threshold of 130 mW. A passive thermal feedback mechanism causes the OPO to oscillate stably in a single axial-mode pair for more than 30 min. The OPO output tunes in 0.1-nm steps from 2040 to 2225 nm by tuning the pump frequency.
ISSN:0146-9592
DOI:10.1364/OL.19.001046