Abstract

By exploiting the correlation between changes in the wavelength and the carrier-envelope offset frequency ($f_{\mathrm{CEO}}$) of the signal pulses in a synchronously pumped optical parametric oscillator, we show that $f_{\mathrm{CEO}}$ can be stabilized indefinitely to a few megahertz in a 333 MHz repetition-rate system. Based on a position-sensitive photodiode, the technique is easily implemented, requires no nonlinear interferometry, has a wide capture range, and is compatible with feed-forward techniques that can enable $f_{\mathrm{CEO}}$ stabilization at loop bandwidths far exceeding those currently available to OPO combs.

© 2016 Optical Society of America

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