Title :
Stealth Transmission of Time-Domain Spectral Phase Encoded OCDMA Signal Over WDM Network
Author :
Gao, Zhensen ; Wang, Xu ; Kataoka, Nobuyuki ; Wada, Naoya
Author_Institution :
Sch. of Eng. & Phys. Sci., Heriot-Watt Univ., Edinburgh, UK
fDate :
7/1/2010 12:00:00 AM
Abstract :
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.
Keywords :
Bragg gratings; Gold codes; chirp modulation; code division multiple access; error statistics; high-speed optical techniques; optical fibre communication; optical fibre dispersion; optical fibre networks; optical modulation; phase coding; phase modulation; security of data; spectral line broadening; time-domain analysis; wavelength division multiplexing; 32-chip 40-Gchips gold codes; WDM network; bit-error rate; error-free transmission; group velocity dispersion; high-speed phase modulator; linearly chirped fiber Bragg grating; optical code-division multiple-access; public wavelength- division-multiplexing network; pulse broadening; security enhancement; stealth channel; stealth transmission; time-domain spectral phase encoded OCDMA signal; Optical code-division multiple-access (OCDMA); optical steganography; spectral phase en/decoding (SPE/D);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2048203
