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Comparison of DC-Value Method and Kramers–Kronig Receiver in Optical OFDM SSB-DD Transmission
- Source :
- IEEE Photonics Journal, Vol 14, Iss 4, Pp 1-8 (2022)
- Publication Year :
- 2022
- Publisher :
- IEEE, 2022.
-
Abstract
- Short reach optical communications are desperate for cost-effective solutions to improve capacity and compatibility in dealing with massive access and applications. Single sideband-direct detection (SSB-DD) is highly recognized for improving capacity with single PD, but it is confronted with signal-signal beating interference (SSBI). Recently, a DC-Value method has been proposed for optical signal phase retrieval for single carrier signal transmission. To further explore the effectiveness and compatibility of DC-Value method, in this letter for the first time, the orthogonal frequency division multiplexing (OFDM)-based multi-carrier modulation formats are processed by the DC-Value method in the receiver. Simulation results demonstrate that, for both OFDM and Nyquist-shaped single carrier (SC), the DC-Value method is beneficial in applying lower sampling rate to achieve comparable transmission performance than that of Kramers-Kronig receiver. In addition, althrough OFDM holds 2 dB increment of the optimum carrier-signal power ratio (CSPR) than Nyquist-SC, it offers more robustness to fibre transmission.
Details
- Language :
- English
- ISSN :
- 19430655
- Volume :
- 14
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- IEEE Photonics Journal
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5d6debe73006455fb5436e034941ade5
- Document Type :
- article
- Full Text :
- https://doi.org/10.1109/JPHOT.2022.3192263