Toward integrated synchronously pumped optical parametric oscillators in silicon nitride

Niklas M. Lüpken*, David Becker, Thomas Würthwein, K.-J. Boller, C. Fallnich

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We present a tunable, hybrid waveguide-fiber optical parametric oscillator (OPO) synchronously pumped by an ultra-fast fiber laser exploiting four-wave mixing (FWM) generated in silicon nitride waveguides. Parametric oscillation results in a 35 dB enhancement of the idler spectral power density in comparison to spontaneous FWM, with the ability of wide wavelength tuning over 86 nm in the O-band. Measurements of the oscillation threshold and the efficiency of the feedback loop reveal how an integration of the OPO on a single silicon nitride chip can be accomplished at standard repetition rates of pump lasers in the order of 100 MHz.
Original languageEnglish
Pages (from-to)39895-39903
Number of pages9
JournalOptics express
Volume29
Issue number24
DOIs
Publication statusPublished - 22 Nov 2021

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