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Optical Engineering • Open Access

Spectrum-efficient 80-Gbit/s differential phase-shift keying transmitter using phase-interleaving technology without optical-time or polarization-division multiplexing
Author(s): Guo-Wei Lu; Tetsuya Miyazaki

Paper Abstract

We experimentally demonstrate a spectrum-efficient 80-Gbit/s differential phase-shift keying (DPSK) transmitter for a single wavelength channel using phase-interleaving technology without any optical-time or polarization-division multiplexing. Two cascaded independent 40-Gbit/s modulations were time-interleaved to generate an 80-Gbit/s DPSK signal with a compact spectrum. The proposed 80-Gbit/s DPSK transmitter consists of two independent 40-Gbit/s phase modulators only. No additional high-speed pre- or postcoder is required at the transmitter or receiver side. The proposed scheme is potentially cost-effective.

Paper Details

Date Published: 1 May 2008
PDF: 3 pages
Opt. Eng. 47(5) 050501 doi: 10.1117/1.2931597
Published in: Optical Engineering Volume 47, Issue 5
Show Author Affiliations
Guo-Wei Lu, National Institute of Information and Communications Technology (Japan)
Tetsuya Miyazaki, National Institute of Information and Communications Technology (Japan)


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