Real-time quantitative measurement of the mode beating of an injection-seeded optical parametric oscillator

Kurzfassung

In this paper we present the dependency of a quantitative measurement of the first-order longitudinal mode beating of an injection-seeded optical parametric oscillator (OPO) on its injection-seeding state. We show the correlation of the intensity of the first-order longitudinal mode beating and the side-mode suppression of an injection-seeded OPO. We further demonstrate that the mode-beating intensity can be used as an indicator for the spectral purity of an injection-seeded OPO.