Browsing by Author "Way, Winston I."

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400-Gb/s Transmission Over 10-km SSMF Using Discrete Multitone and 1.3-mu m EMLs
(2014-08-15)
Chan, Trevor
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Lu, I-Cheng
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Chen, Jyehong
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Way, Winston I.
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光電工程學系
We experimentally demonstrated 400-Gb/s transmission over 10-km standard single-mode using discrete multi-tone (DMT) and four 1.3-mu m local-area-network wavelength-division-multiplexed externally modulated lasers. A reasonably good system margin has been obtained. We have also investigated the fundamental limitations of using semiconductor optical amplifiers for DMT-based systems.
Radio-over-fiber 16-QAM, 100-km transmission at 5 Gb/s using DSB-SC transmitter and remote heterodyne detection
(2008-03-01)
Weng, Chia-Kai
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Lin, Yu-Min
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Way, Winston I.
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電信工程研究所
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Institute of Communications Engineering
By using a double-sideband suppressed carrier (DSB-SC) optical transmitter and a remote self-heterodyned (RSH) detection method, we experimentally and analytically proved the feasibility of a radio-over-fiber system using a 16-QAM signal at 5 Gb/s and 18 GHz, with a transmission distance of 100 km between a mobile service center and a base station. The transmission system performance was carefully analyzed by considering optical amplifier noise, fiber nonlinearity, phase noise, frequency response, and analog-to-digital converter (ADC) quantization noise. The 18-GHz, 16-QAM signal can be radiated from the base station to a remote antenna port without any upconverter, and the remote antenna port consists of a downconverter and high-speed digital signal processors (DSPs) to recover the 16-QAM signal. The high-speed DSP, which partially compensates the intersymbol-interference (ISI) and phase-noise-induced system penalties, was enabled by 20-Gs/s ADCs. The algorithms used in the DSP blocks were also described in details.