title: Suppression of FM-to-AM conversion in third-harmonic generation at the retracing point of a crystal.
abstract: FM-to-AM conversion can cause many negative effects (e.g., reducing of margin against damage to the optics) on the performance of a 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 potassium dihydrogen phosphate crystal. Obtained results indicate that the FM-to-AM conversion can be suppressed effectively when the crystal works at the retracing point.
authors.affiliation: College of Science, National University of Defense Technology, Changsha 410073, China. ysyang@nudt.edu.cn
authors.forename: Yisheng
authors.initials: Y
authors.lastname: Yang
authors.forename: Bin
authors.initials: B
authors.lastname: Feng
authors.forename: Wei
authors.initials: W
authors.lastname: Han
authors.forename: Wanguo
authors.initials: W
authors.lastname: Zheng
authors.forename: Fuquan
authors.initials: F
authors.lastname: Li
authors.forename: Jichun
authors.initials: J
authors.lastname: Tan