Nested coupling terahertz wave parameter oscillator
A terahertz and wave parametric technology, which is applied in the application field of terahertz wave technology, can solve problems such as low efficiency and low power of terahertz radiation sources, and achieve the effects of reducing output loss, improving utilization efficiency, and increasing optical conversion efficiency
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[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] Such as figure 1 As shown, a nested coupled terahertz wave parametric oscillator includes a KD*P crystal 1, a polarizer 2, a Nd:YAG laser pump module 3, a GaAs crystal 10, and mirrors arranged around the GaAs crystal 10;
[0032] The pumping source consists of KD*P crystal 1, polarizer 2, Nd:YAG laser pump module 3, first reflector 5, second reflector 6, third reflector 7, fourth reflector 8 and fifth reflector The pump light 4 emitted by the pump source resonates in the resonant cavity composed of the first reflector 5, the second reflector 6, the third reflector 7, the fourth reflector 8 and the fifth reflector 9. Enlarge; the pump source used in this embodiment is Nd:YAG pulsed laser, the wavelength is 1064nm, the pulse width is 20ns, the repetition frequency is 20Hz, the beam diameter is 6mm, and the power density is 10MW / cm 2 .
[0033] The pum...
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