High Peak Power Electro-Optical Cavity-Dumped Laser at 946\u2009nm Based on Pulse LD Side-Pumped Nd:YAG

Abstract

Abstract Based on the transverse polarization modulation technology of MgO:LN crystal, an electro-optic cavity-dumped 946\u2009nm all-solid-state laser with short pulse duration and high peak power at 200\u2009Hz repetition rate is developed by our research team. Through structural optimization design, the cavity emptying laser has good thermal and insensitivity characteristics, with the repetition frequency in the range of 1\u2009kHz–200\u2009Hz was adjustable, The maximum average output power of the pulsed laser is 15.4\u2009W and 8.4\u2009W were obtained at the repetition frequency of 1\u2009kHz and 200\u2009Hz, the corresponding pulse width of 10.1\u2009ns and 8\u2009ns. The beam quality factors of M2 x is 3.849, M2 y is 3.888, and far field divergence angles θx is 3.46 mrad, θy is 3.55 mrad, respectively at the repetition frequency of 1\u2009kHz.