Semi-monolithic optical parametric oscillator: infrared pulsed single-longitudinal-mode operation

Summary from only given. The multi-frequency behavior of pulsed OPOs is detrimental for most of applications that require a typical line width of 100 MHz. To fulfill the spectral need, dual-cavity doubly resonant optical parametric oscillators (DROPOs) are well suitable since they provide a low threshold of oscillation in combination with compactness. We report here a novel compact nanosecond OPO leading to single- longitudinal-mode output from a semi-monolithic linear dual-cavity DROPO operating at several kHz in the mid-infrared domain.