Nd:YAGレーザの第3高調波発生における波長変換結晶の温度特性

概要

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The output power stability is prerequisite for industrial use. As the main factor by which the power stability is affected in high average power operation is the temperature-band width of the phase matching condition, we tried to compare this value with two kinds of nonlinear optical crystals, i.e., lithium triborate(LBO) and bismuth triborate(BiBO) crystals experimentally. As a result, it is found that the temperature-bandwidth of BiB_3O_6 is bigger than that of LiB3O6 in both type I and type II third harmonic frequency conversion schemes, respectively.