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Updated: Jun 1, 2026
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
All-optical OFDM transmission of 7 x 5-Gb/s data over 84-km standard single-mode fiber without dispersion
1Bell Laboratories, Alcatel-Lucent, 791 Holmdel-Keyport Road, Holmdel, New Jersey 07733, USA. inuk.kang@alcatel-lucent.com
Abstract:
We implement dispersion-tolerant and time-gating-free all-optical OFDM transmission using a photonic-integrated discrete Fourier transform (DFT) device. We show that 35-Gb/s OFDM data having near-unity spectral efficiency can be transmitted all-optically with 1-dB dispersion margin of ~1000 ps/nm. The passive-optical DFT circuit is implemented using multi-mode interference (MMI) couplers on a high index-contrast silica integrated-optic platform. We also propose a photonic DFT circuit based on an NxN MMI device capable of simultaneous channelization of OFDM signals into N subcarriers.
