Timing Jitter and Amplitude Noise Reduction by a Chirped Pulsed-Pump Fiber OPA

Abstract

An optical reshaper based on a linearly-chirped pulsed-pump fiber optical parametric amplifier (OPA) was discussed. The optical reshaper was used to reduce timing jitter and amplitude noise. The reshaper consisted of saturation controller, chirped-pulse generator, OPA section and dispersive medium. The reshaper removed timing-jitter by a temporal lens effect, which was realised by a frequency chirp followed by optimum dispersion. The reshaper reduced amplitude noise of the input signal by optimizing gain saturation of the OPA.