All-Analogue Real-Time Broadband Filter Bank Multicarrier Optical Communications System

作者：Gutierrez Fernando A^*; Perry Philip; Martin Eamonn P; Ellis Andrew D; Smyth Frank; Barry Liam P

来源：Journal of Lightwave Technology, 2015, 33(24): 5073-5083.

DOI：10.1109/JLT.2015.2496285

• Electro optical transceiver
• filter bank multicarrier (FBMC)
• orthogonal frequency division multiplexing (OFDM)
• subcarrier multiplexing (SCM)

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.

• 出版日期2015-12-15