Wavelength selectable laser oscillator in wavelength tunable...

H - Electricity – 01 – S

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Details

H01S 3/117 (2006.01) H01S 3/106 (2006.01) H01S 3/081 (2006.01) H01S 3/094 (2006.01)

Patent

CA 2203733

An object of the present invention is to provide a wavelength selectable laser oscillator in wavelength tunable laser by which high- speed tuning of wavelength can be achieved while utilizing continuous- wave laser beam as the excited laser beam. The wavelength selectable laser oscillator in wavelength tunable laser comprises a laser resonator composed of opposed mirrors each having a prescribed reflectivity on the outgoing side and a total reflection mirror which does not transmit light, but reflects the light; a wavelength tunable laser medium disposed in the laser resonator and capable of laser oscillation in a wavelength zone of a prescribed range; an acousto- optical crystal disposed in the laser oscillator and to which is inputted the outgoing light from the wavelength tunable laser medium; an acoustic wave inputting means mounted on the acousto-optical crystal and for inputting an acoustic wave to the acousto- optical crystal; and a continuous- wave laser for inputting excited laser beam into the laser resonator; the laser beam outputted from the mirrors on the outgoing side being utilized as the outgoing laser beam from the laser resonator.

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