Patent ID: 9048619
Filing Date: 2015-06-02
Classification: B82Y,H01S

Abstract:
1. A laser diode assembly comprising: a mode-locked laser diode device; a diffraction grating that outputs 0-order diffracted light outside; an external resonator composed of a reflecting mirror that reflects primary or more order diffracted light from the diffraction grating and returns the reflected light to the mode-locked laser diode device thorough the diffraction grating; an imaging section provided between the mode-locked laser diode device and the diffraction grating and imaging laser light outputted from the mode-locked laser diode device on the external resonator; and a plurality of apertures provided between the diffraction grating and the external resonator and regulating entrance of laser light into the external resonator, wherein the reflecting minor composing the external resonator is formed with a concave mirror, and wherein curvature radius of the concave mirror is equal to distance from the diffraction grating to the concave mirror.