Browsing by Author "Li, Wei-Yuan"

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2.1-Tb/s.km OFDM Long-Reach PON Transmission using a Cost-Effective Electro-Absorption Modulator
(2011-01-01)
Hsu, Dar-Zu
;
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Chen, Jyehong
;
Yuang, Maria C.
We experimentally demonstrate a superior performance of 2.1-Tb/s.km OFDM-signal transmission over 100-km long-reach PONs, which is achieved by using an EAM and direct-detection, and adopting the 128-QAM format and adaptive subcarrier power weighting.
21 Gb/s after 100 km OFDM long-reach PON transmission using a cost-effective electro-absorption modulator
(2010-12-20)
Hsu, Dar-Zu
;
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Chen, Jyehong
;
Yuang, Maria C.
We experimentally demonstrate a superior performance of 2.1-Tb/s.km OFDM signal transmission over 100-km long-reach PONs. While the bandwidth of a 100-km SMF transmission system is limited to 4.3 GHz due to positive chirp, we successfully achieve spectrally-efficient 21-Gb/s signaling by using a cost-effective and low-chirp EAM, and adopting the 128-QAM format and adaptive subcarrier pre-emphasis. (C)2010 Optical Society of America
A 40-Gb/s OFDM PON System Based on 10-GHz EAM and 10-GHz Direct-Detection PIN
(2012-01-01)
Chen, Hsing-Yu
;
Wei, Chia Chien
;
Hsu, Dar-Zu
;
Yuang, Maria C.
;
Chen, Jyehong
This letter demonstrates a 40-Gb/s optical double-sideband (ODSB) orthogonal frequency-division multiplexing passive optical network (OFDM-PON) system using a cost-effective 10-GHz-bandwidth electroabsorption modulator (EAM). By employing a subcarrier-adaptive modulation format and pre-emphasis, we successfully achieve 20-km EAM-based single-mode-fiber (SMF) transmission.
Cost-effective 33-Gbps intensity modulation direct detection multi-band OFDM LR-PON system employing a 10-GHz-based transceiver
(2011-08-29)
Hsu, Dar-Zu
;
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Li, Wei-Yuan
;
Chen, Jyehong
We develop a dynamic multi-band OFDM subcarrier allocation scheme to fully utilize the available bandwidth under the restriction of dispersion-and chirp-related power fading. The experimental results successfully demonstrate an intensity-modulation-direct-detection 34.78-Gbps OFDM signal transmissions over 100-km long-reach (LR) passive-optical networks (PONs) based on a cost-effective 10-GHz EAM and a 10-GHz PIN. Considering 0-100-km transmission bandwidth of a 10-GHz EAM, the narrowest bandwidth is theoretically evaluated to occur at similar to 40 km, instead of 100 km. Consequently, the performances of 20-100-km PONs are experimentally investigated, and at least 33-Gbps capacity is achieved to support LR-PONs of all possible 20-100-km radii. (C) 2010 Optical Society of America