Multibeam pumping of OPA by radiation of fibre amplifiers

D. KEZYS; M. GECEVIČIUS; A. PISKARSKAS; V. PYRAGAITĖ; V. SMILGEVIČIUS; A. STABINIS

doi:10.3952/physics.v51i2.2014

D. KEZYS
M. GECEVIČIUS
A. PISKARSKAS
V. PYRAGAITĖ
V. SMILGEVIČIUS
A. STABINIS

DOI: https://doi.org/10.3952/physics.v51i2.2014

Abstract

The results of effective optical parametric amplification in KTP crystal pumped by three beams delivered by fibre amplifiers are presented. The second harmonic of three 1.2 ns and 200 μJ pulses each extracted from fibre amplifier have been used to pump optical parametric amplifier (OPA) simultaneously. The conversion efficiency of pump radiation into a signal beam was close to 25%. Keywords: nonlinear optics, fibres, erbium, parametric oscillators and amplifiers