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2020-06-19
Maeda, Hideki, Kawahara, Hiroki, Saito, Kohei, Seki, Takeshi, Kani, Junichi.  2019.  Performance Degradation of SD-FEC Due to XPM Phase Noise in WDM Transmission System with Low-Speed Optical Supervisory Channel. 2019 IEEE Photonics Conference (IPC). :1—2.

An experiment and numerical simulations analyze low-speed OSC derived XPM-induced phase noise penalty in 100-Gbps WDM systems. WDM transmission performance exhibits signal bit-pattern dependence on OSC, which is due to deterioration in SD-FEC performance.

2015-05-06
Markman, A., Javidi, B., Tehranipoor, M..  2014.  Photon-Counting Security Tagging and Verification Using Optically Encoded QR Codes. Photonics Journal, IEEE. 6:1-9.

We propose an optical security method for object authentication using photon-counting encryption implemented with phase encoded QR codes. By combining the full phase double-random-phase encryption with photon-counting imaging method and applying an iterative Huffman coding technique, we are able to encrypt and compress an image containing primary information about the object. This data can then be stored inside of an optically phase encoded QR code for robust read out, decryption, and authentication. The optically encoded QR code is verified by examining the speckle signature of the optical masks using statistical analysis. Optical experimental results are presented to demonstrate the performance of the system. In addition, experiments with a commercial Smartphone to read the optically encoded QR code are presented. To the best of our knowledge, this is the first report on integrating photon-counting security with optically phase encoded QR codes.