Abstract

We have demonstrated the first field trial of a real-time 100-Gb/s passive optical network with downstream/upstream data rates of 25/10-Gb/s/λ based on 10G-class optical devices supporting 0–40 km differential reach. We employ a single delay-interferometer (DI) to realize chirp management as well as frequency equalization to combat the chromatic dispersion during the fiber transmission and equalize the frequency response of the bandwidth-limited system. Owing to the periodical characteristic, DI can successfully manage the four downstream wavelengths simultaneously. As for the upstream transmission, a fiber Bragg grating is employed to compensate the dispersion of the four upstream channels. In addition, an optical amplification deployed at the optical line termination (OLT) is used to amplify the downstream optical power and pre-amplify the upstream signal for supporting more users. All the active and passive components except for transceivers are packaged into a single module in the OLT. The system stability is verified within 67-h real-time bit error rate measurement. We obtained a power budget of 33 dB with 0–40 km reach of standard single mode fiber based on non-return-to-zero on-off-keying modulation format for both downstream and upstream.

© 2016 IEEE

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