“…Previously, C-band PS behavior has been demonstrated in PPLN based PSAs both with degenerate signal, idler and pump in a ridge waveguides [4], where low noise amplification was also recently demonstrated [5], and in the WDM compatible, non-degenerate idler configuration [3], [6] where the phase sensitive dynamic range (PSDR) was shown to be the key parameter in determining the phase squeezing performance. Furthermore, phase squeezing of multiple signal channels has also been demonstrated [7] in a PPLN-PPLN PSA and it has been shown that intra-channel crosstalk has small impact on the phase squeezing performance, compared to the FWM-based crosstalk in FOPA PSAs. Here we investigate an all-optical, C-band, black-box phase regenerator for binary phase-shift keyed (BPSK) signals utilizing cascaded second order nonlinearities in PPLN waveguides for the first time.…”