DPSK Regeneration at 40 Gb/s and Beyond Using a Fiber-Sagnac Interferometer

作者：Kouloumentas Christos^*; Bougioukos Marios; Maziotis Alexandros; Avramopoulos Hercules

来源：IEEE Photonics Technology Letters, 2010, 22(16): 1187-1189.

DOI：10.1109/LPT.2010.2050875

• Differential phase-shift keying (DPSK) regenerator
• nonlinear optical loop mirror
• nonlinear Sagnac interferometer

We analyze the experimental demonstration of a phase-incoherent regeneration scheme for differential phase-shift keying signals at 40 Gb/s. The scheme is based on decoding of the input signal by a 1-bit delay interferometer and subsequent optical remodulation using a fiber-Sagnac interferometer. Power penalty improvement up to 3 dB is reported for phase, amplitude, and amplified spontaneous emission noise loaded signals. Simulation results are in agreement with the experimental findings, and reveal the capability of extending the method at ultrahigh data rates.

• 出版日期2010-8-15