Phase sensitive parametric interactions in a $Ga_{0.5}In_{0.5}P$ photonic crystal waveguide

TL;DR

This paper demonstrates phase sensitive amplification in a dispersion-engineered GaInP photonic crystal waveguide, achieving significant extinction ratios with low pump power, advancing integrated nonlinear photonics.

Contribution

It introduces phase sensitive amplification in a GaInP photonic crystal waveguide with a flattened dispersion profile, showing effective amplification at low power levels.

Findings

Achieved 10dB phase sensitive extinction ratio.

Used only 0.5W peak power with pulsed pumps.

Demonstrated phase sensitive amplification in a compact waveguide.

Abstract

We report phase sensitive amplification in a 1.5mm long, $Ga_{0.5}In_{0.5}P$ dispersion engineered photonic crystal waveguide which has a flattened dispersion profile. A signal degenerate configuration with pulsed pumps whose total peak power is only 0.5W yields a phase sensitive extinction ratio of 10dB.