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US 2009/0214210 A1Published application
100 Gbit/s OFDM Optical Signal Generation
AssigneeNEC Laboratories America, Inc.
InventorsJianjun Yu, Ting Wang
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Abstract
A method includes modulating lightwaves to provide first and second OFDM signal sidebands at a first polarization direction and first and second OFDM signal sidebands at a second polarization direction, and combining sidebands that are oppositely positioned and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.
Claims19
A method comprising the steps of:
- modulating lightwaves to provide first and second OFDM signal sidebands at a first polarization direction and first and second OFDM signal sidebands at a second polarization direction;
- and
- combining sidebands that are oppositely positioned and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.
An apparatus comprising,
- a modulator for varying lightwaves to provide first and second OFDM signal sidebands at a first polarization direction and first and second OFDM signal sidebands at a second polarization direction, and
- a polarization beam combiner for combining sidebands that are oppositely positioned and joined from the first and second OFDM signal sidebands at each polarization direction to provide a polarization multiplexing OFDM signal.
Dependencies are inferred from the claim text.