@inproceedings{discovery10059927, volume = {12}, address = {Piscataway, NJ, USA}, booktitle = {Proceedings of the 12th International Conference on Optical Communications and Networks (ICOCN)}, series = {International Conference on Optical Communications and Networks (ICOCN)}, note = {This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.}, year = {2013}, publisher = {IEEE}, month = {July}, title = {Physical-layer network coding in optical networks}, url = {https://doi.org/10.1109/ICOCN.2013.6617176}, abstract = {Physical-Layer Network Coding (PNC) is a promising technique to improve the network throughput of full-duplex transmission in a wireless two-way relay channel. Here, we explore the application of PNC in optical systems and networks. Two transmitted optical signal frames are simply added together to form an optical PNC-coded composite frame, which shares the same network channel/resource. At their destined node, the composite signal is directly-detected, before being decoded by subtracting one of the two transmitted signal frames, which is either already known or stored locally, from the received PNC-coded composite frame.}, author = {Chan, C-K and Liu, Z}, keywords = {Optical fiber networks, Network coding, Optical fibers, Optical polarization, OFDM}, isbn = {978-1-4799-1386-2} }