A Novel Phase-Locking-Free Phase Sensitive Amplifier-Based Regenerator

Abstract

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Scalable WDM phase regeneration in a single phase-sensitive amplifier through optical time lenses

“…The PC serial signal tributaries can then be regenerated simultaneously in a single PSA. The DI, XPM and PSA scheme was previously investigated for phase-locking-free PSA 28,29 , and TDM regeneration 30 . The all optical phase regenerator based on DI, XPM and PSA is shown in Fig.…”

All-optical WDM regeneration of DPSK signals using optical fourier transformation and phase sensitive amplification

“…To achieve a suitable set of phase-locked pumps with the signal carrier for PSA, we use a phase-locking-free scheme based on an XPM loop 5 . Three phase-locked carriers P1 (1540 nm), S (1544 nm) and P2 (1548 nm) are generated based on FWM in a 200 m HNLF.…”

“…A WSS is used to equalize the pumps, remove out of band noise and adjust the power and phase of S relative to the pumps P1 and P2, in order to optimize the PSA performance. The signal S and pumps P1, P2 are amplified to 23.5 dBm, and launched into a 250 m HNLF to achieve phase sensitive amplification with stable phase-matching for improved nonlinear efficiency (HNLF-SPINE) 5 . After the PSA, the regenerated OTDM signal is sent to the second OFT for OTDM to WDM conversion.…”

Recent Progress on Optical Regeneration of Wavelength-Division-Multiplexed Data

“…The regeneration scheme in the 16-channel demonstration is the same as the one studied extensively in [29] for singlechannel operation. The steep transfer function, which can be achieved in a PSA with moderate gain, is clearly attractive for regeneration.…”