Single-longitudinal-mode optical parametric oscillation amplifier and automatic locking method thereof
A technology of optical parametric oscillation and single longitudinal mode, which is applied to lasers, laser components, excitation methods/devices, etc., can solve the problems of high toxicity, large radiation that cannot be completely eliminated, and short service life of dye molecules. High overall efficiency, stable output, and high efficiency
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[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0052] Such as figure 1 As shown, the optical parametric oscillator amplifier of the present invention is divided into two modules: an optical parametric oscillator (OPO) and an optical parametric amplifier (OPA), and has two major parts: an optical path system and a control system.
[0053]The first is the optical system. Here we use the output of the solid-state laser with seed injection as the pump light of OPO / OPA. After the pump light enters the OPO / OPA, it first passes through a half-wave plate corresponding to the wavelength of the pump light (consistent with the wavelength of the pump light) to adjust to a suitable polarization, and then passes through a beam reducer pair composed of a convex lens and a concave lens. To adjust the beam size to the size of nonlinear crystals suitable for OPO and OPA. Then a beam splitter divides the p...
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