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Stealth Transmission of Time-Domain Spectral Phase Encoded OCDMA Signal Over WDM Network

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4 Author(s)
Zhensen Gao ; School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK ; Xu Wang ; Nobuyuki Kataoka ; Naoya Wada

Security enhancement of stealth channel by combining time-domain spectral phase en/decoding (SPE/D) OCDMA scheme and group velocity dispersion is proposed and experimentally demonstrated. The time-domain spectral phase encoded OCDMA signal, which utilizes a linearly chirped fiber Bragg grating for pulse broadening and a high-speed phase modulator for SPE, has been stealth transmitted over a public wavelengthdivision-multiplexing network. Error-free transmission (bit-error rate <; 10-9) has been achieved for both the public and stealth channel with 32-chip 40-Gchip/s gold codes.

Published in:

IEEE Photonics Technology Letters  (Volume:22 ,  Issue: 13 )