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We present an improved pumping concept for a synchronously pumped optical parametric oscillator (OPO). The validity of this new concept has been verified by an experiment of a synchronously pumped femtosecond OPO based on periodically poled LiNbO 3 (PPLN). With this new concept, not only can we obtain high harmonic repetition rate from an OPO, but also we can design the OPO with one more freedom,...
We demonstrate on a synchronously pumped femtosecond LiB 3 O 5 (LBO) optical parametric oscillator (OPO) at telecom wavelengths (1.3-1.6 μm) with a high harmonic repetition rate, which is not determined by the cavity roundtrip time of the OPO, but rather the cavity roundtrip time difference between the OPO and its pump source. This method paves the way for exploiting a femtosecond...
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