Synchronously pumped optical parametric oscillator with a repetition rate of 81.8 GHz

We present a singly resonant synchronously pumped optical parametric oscillator with a record-high pulse repetition rate of 81.8 GHz. It generates up to 0.9 W of signal average output power at a wavelength of 1569.7 nm. The pulses have a duration of 2.4 ps and are nearly transform-limited. The device is wavelength tunable from 1541.4 to 1592.2 nm. The tuning range could be easily extended by the use of a multiperiod periodically poled LiNbO/sub 3/ crystal.