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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 5 — May. 1, 2011
  • pp: 404–410

Transparent Transmission of a Secure Time Domain Spectral Phase Encoding/Decoding DPSK–OCDM Signal Over a DWDM Network

Zhensen Gao, Bo Dai, Xu Wang, Nobuyuki Kataoka, and Naoya Wada  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 3, Issue 5, pp. 404-410 (2011)
http://dx.doi.org/10.1364/JOCN.3.000404


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Abstract

We propose and experimentally demonstrate a transparent optical-code-division multiplexing (OCDM) overlay public dense wavelength-division multiplexing (DWDM) network architecture enabled by a passive spectral notch filter for extracting and detecting a secure OCDM signal, which employs a time domain spectral phase encoding/decoding scheme that can simultaneously generate differential-phase-shift-keying (DPSK) data and optical code patterns using only a single phase modulator. The time domain encoded OCDM signal has been scrambled bit-by-bit by a prime hopping pattern and concealed in the public DWDM channels to significantly improve the OCDM channel security. The effect of optical code patterns, the channel number, and bandwidth of the spectral notch filters on the system performance has been theoretically simulated and experimentally validated. In the experiment, error-free transmission of a 2.5-Gb/s time domain spectral phase encoded DPSK–OCDM signal with three 8-chip, 20-Gchip/s optical codes and a scrambled code pattern in the transparent OCDM overlay two-channel 10-Gb/s DWDM network has been successfully demonstrated.

© 2011 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4230) Fiber optics and optical communications : Multiplexing
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Research Papers

History
Original Manuscript: November 15, 2010
Revised Manuscript: February 10, 2011
Manuscript Accepted: March 4, 2011
Published: April 14, 2011

Citation
Zhensen Gao, Bo Dai, Xu Wang, Nobuyuki Kataoka, and Naoya Wada, "Transparent Transmission of a Secure Time Domain Spectral Phase Encoding/Decoding DPSK–OCDM Signal Over a DWDM Network," J. Opt. Commun. Netw. 3, 404-410 (2011)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-3-5-404


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