Abstract
We propose a carrier frequency-offset estimator for optical OFDM systems using off-the-shelf optical components and simple digital processing as a replacement for the purely digital signal processing using the cyclostationarity property of optical OFDM signals with cyclic prefix. Simulations show the system accuracy of <4% estimate error within the range [-1250 + 1250] MHz offsets for a single polarization 28-Gbaud OFDM signal with 15% cyclic prefix. The effects of the system parameters on the performance are investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 32161-32177 |
| Number of pages | 17 |
| Journal | Optics Express |
| Volume | 25 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - 11 Dec 2017 |
Keywords
- (060.1660) Coherent communications
- (060.2330) Fiber optics communications
- (130.0250) Optoelectronics.
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