Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10409477 | Optics & Laser Technology | 2016 | 6 Pages |
Abstract
Multiband orthogonal frequency division multiplexing (OFDM) subcarrier allocation is a good scheme to fully utilize the available bandwidth under the restriction of dispersion- and chirp-induced power fading in electro-absorption modulator (EAM)-based intensity-modulation-direct-detection (IMDD) OFDM system. In this paper, a modified Tone Reservation (TR) technique combined with subcarrier interleaving is proposed to reduce high peak to average power ratio (PAPR) while minimizing the penalty of subcarrier-to-subcarrier intermixing interference. In the experiment, by incorporating of these two techniques, the receiver sensitivity is improved by about 1.8Â dB when a 20Â Gbps OFDM signal transmitted along 100Â km long single mode fiber in an EAM-based multiband IMDD-OFDM system.
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Authors
Pengfei Yang, Hu Shi, Xue Chen,