Generation of 629 nm pulsed laser using an optical parametric amplifier

الملخص EN

The main purpose of this work is the construction of an optical parametric amplifier (OPA) to generate a 629 nm pulsed laser.

KTP nonlinear crystals were used for both parametric oscillation and amplification.

A singly resonant parametric oscillator (OPO) is constructed to generate a signal of 1.54 μm and idler of 3.4 μm when the OPO system is pumped by 1.064 μm Q–switched Nd : YAG laser.

The signal was then mixed with the pumping beam in OPA system to form the wanted wavelength.

The obtained optical conversion efficiency was 60 %.