Abstract
This paper studies the key aspects of an optical link which transmits a broadband microwave filter bank multicarrier (FBMC) signal. The study is presented in the context of creating an all-analogue real-time multigigabit orthogonal frequency division multiplexing electro-optical transceiver for short range and high-capacity data center networks. Passive microwave filters are used to perform the pulse shaping of the bit streams, allowing an orthogonal transmission without the necessity of digital signal processing (DSP). Accordingly, a cyclic prefix that would cause a reduction in the net data rate is not required. An experiment consisting of three orthogonally spaced 2.7 Gbaud quadrature phase shift keyed subchannels demonstrates that the spectral efficiency of traditional DSP-less subcarrier multiplexed links can be potentially doubled. A sensitivity of -29.5 dBm is achieved in a 1-km link.
Original language | English |
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Pages (from-to) | 5073-5083 |
Number of pages | 11 |
Journal | Journal of Lightwave Technology |
Volume | 33 |
Issue number | 24 |
Early online date | 29 Oct 2015 |
DOIs | |
Publication status | Published - 15 Dec 2015 |
Bibliographical note
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Funding: EI CFTD (CF/2011/1627); SFI (09/IN.1/12653 and 10/CE/I1853): and EPSRC (EP/L000091/1)
Keywords
- electro optical transceiver
- Filter Bank Multicarrier
- Orthogonal Frequency Division Multiplexing
- Subcarrier Multiplexing
- FBMC
- OFDM
- SCM