Phase miss match compensation heater of high power internal cavity freguency multiplier laser and its method
A frequency-doubling laser and phase mismatch technology, which is applied to lasers, laser components, laser components, etc., can solve problems such as uneven temperature, uneven distribution of refractive index, and decreased frequency doubling efficiency, and achieve temperature controllability Effect
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[0013] The specific embodiment of the present invention is embodied in a high-power intracavity frequency-doubling all-solid-state green laser as shown in Figure 1, and a phase mismatch compensation heater device and method are provided for the laser, and the device can make The average output power of the laser is 110W, the instability is less than 2%, and the repetition frequency is adjustable from 1kHz to 30kHz.
[0014] The specific technical scheme of the present invention is as follows: the frequency doubling crystal that adopts is the KTP crystal of II class phase matching, and phase matching angle is phi=24.7 ° and θ=90 °, and its size is 6 * 6 * 9.2mm, both sides are plated 1064nm and 532nm anti-reflection coating; the KTP frequency doubling crystal is placed in the center of a closed metal box made of copper material, the size of the metal box is 20×20×30mm; a temperature sensor is embedded 5mm above the KTP frequency doubling crystal, and its model is pt100, the gap...
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