Open AccessDemonstration of optical steganography transmission using temporal phase coded optical signals with spectral notch filtering
Author(s) -
Xuezhi Hong,
Dawei Wang,
Lei Xu,
Sailing He
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.012415
Subject(s) - optics , wavelength division multiplexing , optical filter , transmission (telecommunications) , optical performance monitoring , computer science , channel (broadcasting) , steganography , optical communication , telecommunications , electronic engineering , physics , engineering , artificial intelligence , wavelength , embedding
A novel approach is proposed and experimentally demonstrated for optical steganography transmission in WDM networks using temporal phase coded optical signals with spectral notch filtering. A temporal phase coded stealth channel is temporally and spectrally overlaid onto a public WDM channel. Direct detection of the public channel is achieved in the presence of the stealth channel. The interference from the public channel is suppressed by spectral notching before the detection of the optical stealth signal. The approach is shown to have good compatibility and robustness to the existing WDM network for optical steganography transmission.