Range finding system that uses an eye-safe laser having a Q switch of the Brewster angle for a single resonator cavity for both the pump laser and an optical parametric oscillator

摘要

(57) Abstract It is the transmitting device of the pump laser and the eye safe laser (10) which possesses the single resonator cavity (16) for both of the optical parametric generator (22). ND: The YAG rod (24) gives gain to light of 1st wavelength. Light the Q switch it does Q switch/buriyusutapureto (26) which, is joined with that the strength it augments and the polarization does light, the polarization plane surface is vertical to the Z axis of the KTP crystal which functioning is done as an optical parametric generator, phase matched status of type II is given. The optical parametric generator converts the light of 1st wavelength to light of 2nd wavelength, light of 2nd wavelength is output passing by the reflected Characteristic output coupler partly at the wavelength which to naked eye badness is not influenced.