Thakur, MP; Quinlan, TJ; Bock, C; Walker, SD; Toycan, M; Dudley, SEM; ... Ben-Ezra, Y; + view all Thakur, MP; Quinlan, TJ; Bock, C; Walker, SD; Toycan, M; Dudley, SEM; Smith, DW; Borghesani, A; Moodie, D; Ran, M; Ben-Ezra, Y; - view fewer (2009) 480-Mbps, Bi-Directional, Ultra-Wideband Radio-Over-Fiber Transmission Using a 1308/1564-nm Reflective Electro-Absorption Transducer and Commercially Available VCSELs. J LIGHTWAVE TECHNOL , 27 (1-4) 266 - 272. 10.1109/JLT.2008.2005644.
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We describe 480 Mbps, bi-directional ultra-wideband (UWB) radio signal transmission over 1 km of single-mode optical fiber. Key components are a highly linear, reflective electro absorption transducer (EAT) and commercially available 1308-nm and 1564-nm VCSELs with 4.8-GHz bandwidth. Detailed EAT and 1308-nm VCSEL distortion analyses and measurements are presented highlighting the low intermodulation and harmonic distortion necessary for typical - 18-dB wireless channel error vector magnitudes (EVMs). Direct VCSEL modulation with Wimedia supported band group 1 (3.1-4.8 GHz) MB-OFDM UWB signals was modelled with-VPItransmissionMaker, suggesting a minimum EVM of - 18.733 dB at 0.4502 OMI. This was confirmed by 480 Mbps upstream and downstream EVM measurements over fiber of -21.4 dB or better. Fully functional, half-duplex, bi-directional data transfer was achieved with interlocked RF switches.
|Title:||480-Mbps, Bi-Directional, Ultra-Wideband Radio-Over-Fiber Transmission Using a 1308/1564-nm Reflective Electro-Absorption Transducer and Commercially Available VCSELs|
|Keywords:||Reflective electro absorption modulator (REAT), ultra-wideband (UWB) radio, VCSEL, SIGNALS|
|UCL classification:||UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering|
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