LASER SOURCE UNIT AND PHOTOACOUSTIC IMAGE GENERATION APPARATUS

摘要

A laser source unit obtains Q switch pulse oscillation with a simple structure while continuously switching a plurality of wavelengths. A laser source unit emits pulsed laser beams with a plurality of different wavelengths. A flash lamp radiates excitation light to a laser rod. A pair of mirrors face each other with the laser rod interposed therebetween. The pair of mirrors form an optical resonator. Wavelength selection unit controls the wavelength of light which resonates in the optical resonator to any one of a plurality of wavelengths to be emitted by the laser source unit. Driving unit drives the wavelength selection unit such that the optical resonator performs the Q switch pulse oscillation.

主权项

1. A laser source unit that emits pulsed laser beams with a plurality of different wavelengths, comprising:
a laser rod; an excitation light source that radiates excitation light to the laser rod; an optical resonator including a pair of mirrors that face each other with the laser rod interposed therebetween; a wavelength selection unit that controls a wavelength of light which resonates in the optical resonator to any one of the plurality of wavelengths; a light emission control unit that controls the excitation light source; and a driving unit that drives the wavelength selection unit such that the optical resonator performs Q switch pulse oscillation, wherein the light emission control unit and the driving unit are synchronized with each other.