PULSE WIDTH MEASUREMENT OF THE PASSIVELY MODE-LOCKED Nd:YAG LASER BY NONCOLLINEAR SHG METHOD

Autor: Zhu Zhen-He, Lai Rui-Sheng, Huo Chong-Ru, Lin Jin-Gu, Liu Cheng-Hui
Rok vydání: 1980
Předmět:
Zdroj: Acta Physica Sinica. 29:406
ISSN: 1000-3290
DOI: 10.7498/aps.29.406
Popis: The noncollinear SHG method has been used to measure the pulse width of passively mode-locked Nd: YAG laser. The nonlinear ADP crystal is oriented in such a way that phase matched SHG is produced only when both incident beams are present as ordinary rays. The angle between the two beams is 25°50′. Phase-matched SHG as an extra-ordinary occurs at an angle bisecting the two beams. The correlation width obtained with passively mode-locked Nd: YAG corresponds to a pulse width of 24 ps.
Databáze: OpenAIRE