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Published on: March 20, 2017
Block-wise phase switching for double-sideband direct detected optical OFDM signals
1Department of Electrical and Electronic Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia. xi.chen@ee.unimelb.edu.au
Abstract:
We propose phase switching for either main-carrier or subcarriers of two consecutive signal blocks to achieve fading-free double-sideband direct-detection (DD). The proposed approach has twice of the electrical spectral efficiency (SE) of offset OFDM, and the same electrical SE as single-side band (SSB) OFDM. With this scheme, 40-Gb/s DD-OOFDM is successfully received over 80-km SSMF with single polarization and single detector.
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