Injection Locked Wavelength De-Multiplexer for Optical Comb-Based Nyquist WDM System


We have a tendency to report a standalone four-output wavelength de-multiplexer (de-mux) using optical injection locking for simultaneous comb tone separation, amplification and power equalization. Optical amplification from -thirty to 5 dBm per output wavelength is achieved. We have a tendency to illustrate the flexibility of the de-mux by separating 2 input combs with tone spacing of 12.five and 6.25 GHz into 12.5-GHz spaced outputs. The system performance of the de-mux is demonstrated in a very 100-km Nyquist ultra-dense wavelength division multiplexed network where the de-multiplexed comb tones are each encoded with 12-GBd Nyquist polarization division multiplexed quadrature part shift keying. Experimental results indicate a worst case one.5-dB receiver sensitivity penalty at one.5e-two bit error ratio for the transmitted comb tone channels when compared with the 400-kHz linewidth comb supply seeding laser.

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