Intracavity third harmonic laser generator with passive Q switch

• Main Authors: ZHAO XIAOJIE, QIN GUOSHUANG, YANG XIN
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2022
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The embodiment of the utility model discloses an intracavity third harmonic laser generator with a passive Q switch. The intracavity third harmonic laser generator comprises a pumping source, a laser crystal, the passive Q switch, a semi-transparent and semi-reflective mirror, a multi-frequency doubling crystal and an end mirror, the pumping source is used for pumping at the repetition frequency to output pulse pumping light; the laser crystal is used for emitting laser after being pumped by the pulse pumping light from the pumping source; the passive Q switch is used for conducting or cutting off fundamental frequency light in the laser resonant cavity; the semi-transparent and semi-reflective mirror is used for transmitting the infrared laser and reflecting the ultraviolet laser; the multi-frequency doubling crystal is used for transmitting the transmitted laser; and the endoscope is used for simultaneously highly reflecting the fundamental frequency light and the frequency doubling light in the cavity. Acc