Measurements of crystal position life of the nonlinear optical crystal

摘要

An optical crystal consists of a primary laser light source configured to generate the fundamental wavelength laser light, to receive the basic laser beam from the fundamental laser light source and the optical crystal, the present invention is received the an auxiliary light source configured by frequency conversion into a light of the wavelength of any part of the basic laser beam configured to produce light having a wavelength different, the optical crystal, to generate an auxiliary wavelength light I met, the wavelength of the auxiliary wavelength light, the basic wavelength laser light and unlike the light of the wavelength of the another, the auxiliary light source and the basic laser light source, through the surface of the optical crystal together with the auxiliary light is the basic laser light at least one of the auxiliary light scattered by the optical crystal or wavelength light, another is arranged to co-propagate, and the auxiliary light source, the fundamental wavelength laser light scattered by the optical crystal, scattered by the optical crystal and a detector configured to detect Tsu.