Time domain spectral phase encoding/DPSK data modulation using single phase modulator for OCDMA application

Xu Wang, Zhensen Gao, Nobuyuki Kataoka, Naoya Wada

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A novel scheme using single phase modulator for simultaneous time domain spectral phase encoding (SPE) signal generation and DPSK data modulation is proposed and experimentally demonstrated. Array-Waveguide-Grating and Variable-Bandwidth-Spectrum-Shaper based devices can be used for decoding the signal directly in spectral domain. The effects of fiber dispersion, light pulse width and timing error on the coding performance have been investigated by simulation and verified in experiment. In the experiment, SPE signal with 8-chip, 20GHz/chip optical code patterns has been generated and modulated with 2.5 Gbps DPSK data using single modulator. Transmission of the 2.5 Gbps data over 34km fiber with BER<10(-9) has been demonstrated successfully. The proposed scheme has simple configuration and improved flexibility that can significantly improve the data confidentiality for optical code division multiple access (OCDMA) and secure optical communication applications. (C) 2010 Optical Society of America

Original languageEnglish
Pages (from-to)9879-9890
Number of pages12
JournalOptics Express
Volume18
Issue number10
DOIs
Publication statusPublished - 10 May 2010

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