320 Gbps to 10 GHz sub-clock recovery using a PPLN-based opto-electronic phase-locked loop.

We present successful extraction of a 10 GHz clock from single-wavelength 160 and 320 Gbps OTDM data streams, using an opto-electronic phase-locked loop based on three-wave mixing in periodically-poled lithium niobate as a phase comparator.

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