Application of Optical Physical Layer Network Coding on Passive Optical Interconnection
Jialong Chen, Maoguo Cai, Ning Chen · 2019
The physical layer network coding (PNC) technology is introduced into the optical network in this article. The proposed scheme employs all-optical XOR logic gates that rely on cross-phase modulation-based saganac interferometer fiber optic rings to perform encoding and decoding. The encoding and decoding operations are respectively applied to the coupler and the server of the data center passive optical interconnect structure, which increases the throughput of information exchange. Complex signal processing operations are replaced by optical XOR, which effectively reduces the delay. The scheme has been tested for error-free simulation of synchronization and asynchronous in transmission rate of 20-Gb/s.