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arXiv · 2108.06219

Toward integrated synchronously pumped optical parametric oscillators in silicon nitride

Niklas M. Lüpken·David Becker·Thomas Würthwein·Klaus-J. Boller·Carsten Fallnich
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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.

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Niklas M. Lüpken, David Becker, Thomas Würthwein, Klaus-J. Boller, Carsten Fallnich. 2021-08-13. Toward integrated synchronously pumped optical parametric oscillators in silicon nitride. https://doi.org/10.1364/oe.438910

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