title: Experimental demonstration of optical stealth transmission over wavelength-division multiplexing network.
abstract: We propose and experimentally demonstrate an optical stealth transmission system over a 200 GHz-grid wavelength-division multiplexing (WDM) network. The stealth signal is processed by spectral broadening, temporal spreading, and power equalizing. The public signal is suppressed by multiband notch filtering at the stealth channel receiver. The interaction between the public and stealth channels is investigated in terms of public-signal-to-stealth-signal ratio, data rate, notch-filter bandwidth, and public channel number. The stealth signal can transmit over 80 km single-mode fiber with no error. Our experimental results verify the feasibility of optical steganography used over the existing WDM-based optical network.
authors.forename: Huatao
authors.initials: H
authors.lastname: Zhu
authors.forename: Rong
authors.initials: R
authors.lastname: Wang
authors.forename: Tao
authors.initials: T
authors.lastname: Pu
authors.forename: Tao
authors.initials: T
authors.lastname: Fang
authors.forename: Peng
authors.initials: P
authors.lastname: Xiang
authors.forename: Jilin
authors.initials: J
authors.lastname: Zheng
authors.forename: Yeteng
authors.initials: Y
authors.lastname: Tang
authors.forename: Dalei
authors.initials: D
authors.lastname: Chen