Low-power optical feeder for VDSL over twisted pair for last mile access networks

In this paper, we describe an ultra-low-power optoelectronic very-high-data-rate digital subscriber line (VDSL) system, enabling broadband access to the home over 10 km of optical fiber and 1 km of twisted pair. The cabinet/distribution point interface has a footprint of just 3 /spl times/ 3 /spl ti...

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Veröffentlicht in:	Journal of lightwave technology 2006-01, Vol.24 (1), p.65-70
Hauptverfasser:	Dudley, S.E.M., Quinlan, T.J., Henning, I.D., Walker, S.D., Davey, R.P., Wallace, A.D., Boyd, I., Payne, D.B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandwidth Broadband Cabinets Channels Circuit properties Consumption Costs DSL Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Feeders Footprints Hybrid transformers Integrated optics. Optical fibers and wave guides Integrated optoelectronics. Optoelectronic circuits lasers low power Optical and optoelectronic circuits Optical fiber networks Optical fiber subscriber loops Optical fibers Optoelectronic devices Optoelectronics Photodiodes Power lasers Quadrature amplitude modulation Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transformers Transmission and modulation (techniques and equipments) unshielded twisted pair (UTP) very-high-data-rate digital subscriber line (VDSL)
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Beschreibung
Zusammenfassung:	In this paper, we describe an ultra-low-power optoelectronic very-high-data-rate digital subscriber line (VDSL) system, enabling broadband access to the home over 10 km of optical fiber and 1 km of twisted pair. The cabinet/distribution point interface has a footprint of just 3 /spl times/ 3 /spl times/ 1 cm, and consumes only 165 mW. A quadrature-amplitude-modulation (QAM) scheme was used for system tests with 10 Mb/s full duplex achieved, and up to 40-dB up/downstream channel isolation is obtained using hybrid transformers.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2005.861120