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.
Original language | English (US) |
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Pages (from-to) | 9111-9117 |
Number of pages | 7 |
Journal | Optics Express |
Volume | 19 |
Issue number | 10 |
DOIs | |
State | Published - May 9 2011 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics