Parametric-light-generator-based Laser System for Pulsed Three-wavelength Illumination

In this paper, we present the three-wavelength (RGB) laser which generates at 451 nm, 532 nm and 634 nm. It is based on the parametric light generator with KTP crystal located in the resonator of Nd:YAG laser and controlled by electro-optic modulator. It provides highly synchronized pulses with duration 5-10 ns and frequency 25 Hz. This device can be used, for example, as a source of quasi-white coherent illumination for phase imaging, color holographic microscopy and other interference applications.