标题： 在晶体重追踪点处第三次谐波生成中的FM到AM转换抑制 显示英文标题

标题： Suppression of FM-to-AM conversion in third-harmonic generation at the retracing point of a crystal

摘要： FM-to-AM转换可能导致许多负面影响（例如，降低对光学元件损坏的裕度等）， 对第三谐波转换系统性能的影响。 在本文中，研究了在II型KDP晶体重入点处和远离重入点处的三阶谐波生成中的FM-to-AM转换效应。 获得的结果表明，当晶体在重入点工作时，FM-to-AM转换可以被有效抑制。 显示英文摘要

摘要： FM-to-AM conversion can cause many negative effects (e.g., reducing of margin against damage to the optics, and etc.) on performances of third-harmonic conversion system. In this letter, the FM-to-AM conversion effect in third-harmonic generation is investigated both at and away from the retracing point of type-II KDP crystal. Obtained results indicate that the FM-to-AM conversion can be suppressed effectively when the crystal works at the retracing point.