A Broadband Topological Charge Tunable Laguerre-Gaussian Optical Parametric Oscillator
A technology of optical parametric oscillator and topological charge, which is applied to the structure/shape of lasers, laser components, and optical resonators, and can solve problems such as low optical power density of beams, increased resonant cavity loss, and insufficient system integration. Achieve high output efficiency, low cavity loss, and improve purity
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[0032] figure 1 The schematic diagram of the optical path structure of the broadband topological charge tunable Laguerre-Gaussian optical parametric oscillator provided by the present invention, the laser is a solid-state laser, such as figure 1 As shown, it includes a nanosecond pulse laser 1 , a beam shaping device 2 , a coated cavity mirror 3 , a periodically poled lithium niobate crystal 4 , a temperature control device 5 , a polarization element 6 and a vector vortex wave plate 7 . The nanosecond pulse laser 1, the beam shaping device 2, and the coated cavity mirror 3 are placed sequentially along the direction of light propagation, and the periodically poled lithium niobate crystal 4, the polarizing element 6 and the vector vortex wave plate 7 are sequentially placed in the coated cavity along the direction of light propagation Inside the mirror 3, a temperature control device 5 is arranged under the periodically poled lithium niobate crystal 4. Wherein, the nanosecond ...
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