0.7-dB Noise Figure Phase-Sensitive Amplification Using Low-Loss Fiber-Pigtailed PPLN Module

Abstract

We have developed a low-loss fiber-pigtailed optical-parametric-amplification module based on a periodically poled LiNbO3 waveguide fabricated with a dicing saw. Using the module, ultra-low-noise phase-sensitive amplification with a noise figure of 0.7 dB was demonstrated.