Browsing by Author "Chen, Yung Jui"

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Add/drop applications in fiber ring networks based on a reconfigurable optical add/drop multiplexer in a re-circulating loop
(2006-11-01)
Huang, Ming-Fang
;
Chen, Jason (Jyehong)
;
Feng, Kai-Ming
;
Lin, Tse-Yu
;
Lai, Chung-Yu
A periodic add/drop system in a fiber ring network was investigated using a reconfigurable optical add/drop multiplexer (ROADM) in a re-circulating fiber loop. After seven cascaded add/drop nodes at every 150 km along the transmission, at bit error ratio (BER) equals to 10(-9) and data rate of 10 Gbps, we observed a 2.5 dB power penalty for the passing through channels with 1050 km transmission distance, and 0.3 dB sensitivity penalty variation for the periodic add/drop channels at every 150 km, respectively. (c) 2006 Elsevier B.V. All rights reserved.
Evaluating the performance improvement of differential phase-shift keying signals by amplitude regeneration and phase-noise suppression
(2008-05-15)
Wei, Chia-Chien
;
Chen, Jason
;
Chen, Yung Jui
;
光電工程學系
;
Department of Photonics
Theoretical bit error rates of the differential phase-shift keying format with various regeneration schemes is presented. A comparison with ideal regeneration reveals that averaging the phase noise of adjacent bits is found to eliminate most penalties that are induced by phase noise. (C) 2008 Optical Society of America.