Noncollinear optical parametric amplifier (NOPA)

The principle of operation is based on noncollinear parametric amplification of a white-light continuum in a nonlinear crystal.

A single stage noncollinear amplification scheme is used. The noncollinear amplifier is pumped by the SHG of femtoREGEN™ INDUSTRIAL or femtoREGEN™ science . SHG is integrated in the femtoTUNE™.

A small fraction of the incoming 1045 nm pulse is used to create a white-light continuum. After amplification, signal pulses can be compressed using a pair of fused silica prisms (optional). The output bandwidth can be controlled by dispersion management in the white-light path before amplification.

The wavelength range can be extended via sum frequency generation or SHG.