Abstract
We investigate the principles of optical phase remodulation and
demonstrate its application in a future-proof 10 Gb/s/channel
wavelength-division-multiplexed (WDM) passive optical network to realize a
colorless optical network unit and bidirectional transmission over a
single fiber. The modulation depth of downstream differential phase-shift
keying is properly reduced to facilitate phase remodulation and Rayleigh
noise mitigation. For both downstream and upstream 10 Gb/s signals,
error-free transmission via a 20 km single-mode fiber is demonstrated
without dispersion compensation operation.
© 2017 Chinese Laser Press
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