Patent ID: 8073025

Claim:
A laser light source enabling pulsed oscillation of laser light, the laser light source comprising: a laser resonator in which a laser medium to generate emission light with supply of pumping energy and to output the emission light is arranged on a resonance optical path; pumping means, separated from the laser medium, for continuously supplying the pumping energy to the laser medium; optical path switch means, having a first port and a second port on the resonance optical path of the laser resonator, for controlling a light transmittable state of the emission light outputted from the laser medium, at the second port; spectrally separating means, disposed on the resonance optical path of the laser resonator, for spectrally separating the emission light outputted from the second port; and reflecting means for reflecting a selected specific wavelength component out of wavelength components spectrally separated by the spectrally separating means while removing remaining wavelength components from the wavelength components spectrally separated, so as to feed the selected specific wavelength component back to the second port.