Widely tunable near-infrared optical parametric oscillator based on a 5%MgO:PPLN partial cylinder pumped at 1064nm by a 1-kHz sub-nanosecond microchip laser

We report the implementation of a singly resonant optical parametric oscillator using a 5%MgO:PPLN partial cylinder pumped by a sub-nanosecond microchip laser emitting 1064nm at a repetition rate of 1 kHz. It is continuously tunable from 1410nm up to 4330nm by rotating the cylinder and a total energy of several microjoules is emitted with a beam quality factor M-2 lower than 3. (c) 2023 Optica Publishing Group