Multiple frequency one-way overlapped output standard continuous green light laser inside full solid multi-cavity combination cavity
A combined cavity and all-solid-state technology, applied in the laser field, can solve the problems of unstable laser output power, insignificant thermal lens effect, and low light-to-light conversion efficiency, so as to reduce heat loss, improve pumping efficiency, reduce absorption effect
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[0038] use figure 1 As shown in the laser design scheme, we have developed a quasi-continuous green laser with an output power of 178W. The laser is composed of three sub-cavities, and each sub-cavity uses the same model of semiconductor laser pumping components to side-pump Nd:YAG crystals. Rod, the fundamental frequency 1064nm optical output power of each semiconductor pump component is 100W and the total fundamental frequency optical power is 300W. The size of Nd:YAG rods are Ф5.0×90mm. Using HGTR-KTP with anti-gray line characteristics as frequency doubling crystal (5×5×15mm 3 , Israel RAICLOCrystals Company), adopts the type II critical phase matching method, and implements constant temperature control (the constant temperature is 22°), which not only reduces the thermal lens effect of the frequency doubling crystal, but also compensates the thermal effect caused by the thermal effect to a certain extent. Frequency doubling crystal phase mismatch improves frequency doub...
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