[특허]Optical fiber network having increased channel capacity

[미국특허] Optical fiber network having increased channel capacity 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04J-014/02 H04J-014/08 H04J-014/00 H04B-010/20 H04B-010/04
출원번호	US-0510685 (2000-02-23)
발명자 / 주소	Hung, Henry
대리인 / 주소	Ching, Alexander B.Squire, Sanders & Dempsey LLP
인용정보	피인용 횟수 : 58 인용 특허 : 2

초록 ▼

Optical communication system apparatus and methods of operating an optical communications system is described. The system advantageously may utilize existing optical fiber networks and provide significantly increased channel capacity. In accordance with one aspect of the invention the system apparatus provides for a plurality of communications channels and a processor unit receives requests for allocation of one or more channels from a node coupled to the optical communications system. The system apparatus dynamically allocates one or more channels selected from unused channels.

대표청구항 ▼

1. A method of operating an optical network coupling a plurality of nodes, comprising: providing a plurality of optical communications channels, each channel being determined by three optical signal variables, a first one of said variables being a wavelength selected from a plurality of predetermined wavelengths, a second one of said variables being a phase selected from a plurality of predetermined phases, and a third one of said variables being a modulation frequency selected from a plurality of modulation frequencies; and utilizing said optical communication channels for communication between said plurality of nodes. 2. A method in accordance with claim 1, comprising: determining each said channel from selected first ones of said variables and from selected second ones of said second variables. 3. A method in accordance with claim 1, comprising: determining each said channel from selected first ones of said first variable, and from selected ones of said second variables, and from selected third ones of said third variables. 4. A method of improving channel capacity and bandwidth of optical fiber networks comprising a plurality of nodes each coupleable to a network comprising optical fiber disposed between said plurality of nodes, said method comprising: providing communications channels for transmission of information over said optical fiber network; and defining each of said communication channels by a selected wavelength selected from a plurality of selected wavelengths and by a selected modulation frequency selected from a plurality of selected modulation frequencies and a selected phase selected from a plurality of selected optical phases. 5. A method in accordance with claim 4, comprising: providing a source of reference signals; and synchronizing each of said channels to said source of reference signals. 6. A method in accordance with claim 4, comprising: defining each of said communication channels by a selected wavelength selected from a plurality of selected wavelengths and by a selected modulation frequency selected from a plurality of selected modulation frequencies and a selected phase selected from a plurality of selected optical phases. 7. A method in accordance with claim 6, comprising: providing a source of reference signals; and synchronizing each of said channels to said source of reference signals. 8. A method in accordance with claim 4, comprising: providing a laser source as a source of optical reference signals; and synchronizing each of said channels to said source of reference signals. 9. A method in accordance with claim 8, comprising: distributing said reference signals to each of said nodes. 10. A method in accordance with claim 4, wherein: said network is in a ring configuration. 11. A method in accordance with claim 4, wherein: said network is in a star configuration. 12. A method in accordance with claim 4, wherein: said network is in a mesh configuration. 13. A method in accordance with claim 5, comprising: distributing said reference signals to said nodes via a distribution.

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[미국특허] Optical fiber network having increased channel capacity 원문보기

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[미국특허] Optical fiber network having increased channel capacity 원문보기

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이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

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