RESUMO
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 1064â nm at a repetition rate of 1â kHz. It is continuously tunable from 1410â nm up to 4330â nm by rotating the cylinder and a total energy of several microjoules is emitted with a beam quality factor M2 lower than 3.
Assuntos
Lasers , Óxido de Magnésio , LuzRESUMO
A pulsed, single longitudinal mode, wavelength-tunable Tm:YAP laser is reported. We demonstrate 1 kHz stable operation with 230 µJ, 50 ns pulses and a spectrum linewidth narrowed below 4 pm (FWHM) close to the Fourier transform limit by use of a volume Bragg grating and a YAG etalon. The output wavelength was tuned from 1940 to 1960 nm owing to a transverse chirp of the period of the Bragg grating.