High repetition frequency laser

• Main Authors: WANG SHIBO, CHEN YANKUI, WU GUOCHAO, ZHENG CAIQIANG, YIN YUSONG, LU XUSHENG
• Format: Patent
• Language: Chinese; English
• Published: 10.07.2020
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The invention discloses a high repetition frequency laser. The high repetition frequency laser comprises a reflector, a diffraction grating, a laser resonant cavity, a solid-state laser material, a beam expander and a pulse laser pump, a solid laser material is arranged in the laser resonant cavity; pump light generated by pumping of the pulse laser enters the solid-state laser material to generate a pulse laser beam. The beam expander expands the cross sectional area of the pulse laser beam to be not less than 6 times; the broadened pulse light beam is guided into the diffraction grating andthen diffracted into narrow-band light beams with different wavelengths, a narrow-band light beam with a corresponding wavelength formed by diffraction of the diffraction grating is guided back to thesolid-state laser material, the selected wavelength of the light beam is amplified again through the solid-state laser material, and a part of the light beam penetrates through the laser resonant cavity and is output to the o