Abstract
We demonstrate a self-seeded multicasting device capable of delivering a large
number of signal integrity preserving spectrally-distinct copies. The new multicasting
device relies on efficient higher-order mixing in a two-pump parametric mixer. Precise
dispersion engineering was deployed to generate a frequency-comb spanning over a 140-nm
band, and resulted in the creation of more than 60 spectral copies of the signal with
conversion efficiencies higher than -3 dB. The fidelity of the multicasting device
with respect to signal intensity and phase was characterized experimentally. The
spectral replication process was found to induce low penalty with both ON-OFF and
differential phase-shift keying signals, thereby indicating compatibility with arbitrary
amplitude/phase signaling formats.
© 2011 IEEE
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