Optical network system and optical communication method

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United States of America Patent

PATENT NO 9794018
APP PUB NO 20150349912A1
SERIAL NO

14822110

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Abstract

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An optical network system includes an optical line terminal, an optical splitter that is connected to the optical line terminal via one first optical fiber, and a plurality of optical network units that are connected to the optical splitter via respective second optical fibers. The plurality of optical network units communicate with the optical line terminal using an optical signal of a working wavelength uniquely assigned to each of them. The optical line terminal communicates with an optical network unit that is connected to the optical splitter using an optical signal of a working wavelength and an optical signal of a spare wavelength that is common to a plurality of optical networks.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
FUJITSU LIMITEDKAWASAKI18047

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Cited Art Landscape

Patent Info (Count) # Cites Year
 
NEC CORPORATION (1)
* 6172782 Output port switching device in N-WDM system 70 1998
 
CISCO TECHNOLOGY, INC. (1)
* 8467676 Sparing for multi-wavelength optical transmitter 5 2009
 
MITSUBISHI ELECTRIC CORPORATION (1)
* 2011/0158,638 PON SYSTEM AND REDUNDANCY METHOD 5 2008
 
SAMSUNG ELECTRONICS CO., LTD. (1)
* 2006/0153,565 Hybrid passive optical network 18 2005
 
FUJITSU LIMITED (2)
* 6288809 Optical subscriber network system 17 1998
* 2008/0131,129 Distribution node for an optical network 5 2007
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (1)
* 2009/0220,230 Passive Optical Network Based On Reflective Semiconductor Optical Amplifier 12 2007
* Cited By Examiner

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