WAVELENGTH MULTIPLEX PON SYSTEM

PROBLEM TO BE SOLVED: To alleviate requirements of a power budget of a transmitter-receiver in uplink signal transmission.SOLUTION: In the wavelength multiplex pon system, an accommodation station includes: optical line concentration devices of N (N: natural number) units, optical confluence directi...

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Bibliographische Detailangaben
Hauptverfasser:	OGUMA MANABU, FUJIWARA MASAMITSU, WATANABE TOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TRANSMISSION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To alleviate requirements of a power budget of a transmitter-receiver in uplink signal transmission.SOLUTION: In the wavelength multiplex pon system, an accommodation station includes: optical line concentration devices of N (N: natural number) units, optical confluence directional couplers of N units, and a station side receivers of N units, and the optical confluence directional couplers are applied to WDM/TDM-PON. Because uplink branch loss can be improved, LD installed on ONU can be multiple-branched without conversion into high power. Accordingly, requirements of power budget of a transmitter-receiver in uplink signal transmission can be alleviated.