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Optical Engineering

All-optical orthogonal frequency multiplexing scheme with cyclic postfix based on fiber Bragg gratings
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Paper Abstract

A novel all-optical orthogonal frequency division multiplexing (AO-OFDM) scheme is proposed and demonstrated. Ultrashort optical pulses are used as samples for optical discrete Fourier transform (DFT) and the inverse DFT process. Different subcarrier channels can be parallelly processed by fiber Bragg gratings. A 20-Gb/s two subcarrier AO-OFDM experiment is carried out with narrowband filtering and optical cyclic postfixes (CP) inserted. Experimental results show that this scheme has good spectral efficiency. Furthermore, the received signals have better eye diagrams and bit error rate performance with the help of CP. This scheme can be used in high-speed optical transmission systems.

Paper Details

Date Published: 1 June 2009
PDF: 6 pages
Opt. Eng. 48(6) 065002 doi: 10.1117/1.3156051
Published in: Optical Engineering Volume 48, Issue 6
Show Author Affiliations
Hongwei Chen, Tsinghua Univ. (China)
Minghua Chen, Tsinghua Univ. (China)
Feifei Yin, Tsinghua Univ. (China)
Ming Xin, Tsinghua Univ. (China)
Shizhong Xie, Tsinghua Univ. (China)

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