Metro Field Trial of 100 Gb/s Channel Transmission over Mixed-Fiber with Real-Time Data Processing

We present results from a transmission field trial for a cost-efficient 107 Gb/s channel using real-time data processing. The channel bit error ratio (BER) was sufficient for error-free performance after FEC for a 150 km mixed SSMF and DSF metro route in the Berlin area as part of the OCTET test bed. The DPSK-3ASK modulation format used in the trial was investigated as a lower-cost, metro-focused alternative to the DP-QPSK format, and was assembled using commercially available serializer and deserializer ICs and FPGA. Transmission results as well as latency measurements over a pair of 10GbE tributaries are described. Additionally, post-trial laboratory results for transmission distances up to 430 km with standard single-mode fiber are presented.