Neodymium-doped langasite self-frequency-doubling ultra-short pulse laser
A self-frequency doubling and laser technology, applied in the laser field, can solve the problems of insufficient laser beam quality and large divergence angle, and achieve the effect of good cross application potential, high pulse width and high repetition frequency.
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[0035] The inventors of the present application found that Nd-doped La 3 Ga 5 SiO 14 The crystal has laser self-frequency doubling effect, which can be applied to self-frequency doubling ultrashort pulse laser by using this property.
[0036] The self-frequency doubling ultrashort pulse laser of the present invention adopts Nd ion-doped La 3 Ga 5 SiO 14 The crystal (hereinafter abbreviated as Nd: LGS crystal) acts as the gain medium and frequency doubling crystal of the laser at the same time, which can simultaneously generate fundamental frequency and frequency doubling laser in the resonator and stabilize the output. The laser of the present invention may generally include a pump source, an optical focusing system, and a laser resonant cavity, and the Nd:LGS crystal is arranged in the laser resonant cavity. The pumping source is used to provide pumping laser light, and the optical focusing system is arranged between the pumping source and the laser resonant cavity, and ...
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