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Optical communication system, its optical communication method, and communication device

A technology for optical communication systems and communication devices, applied in transmission systems, digital transmission systems, electromagnetic wave transmission systems, etc., can solve problems such as difficulty in providing high-quality services, and achieve the effects of suppressing delays, reducing frequency hopping times, and high-quality services

Inactive Publication Date: 2009-10-21
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This store-and-forward process causes delays and fluctuations in information transmission, and it is conceivable that it is difficult to provide high-quality services in systems that require high delays and fluctuations, such as the above-mentioned grid computing.

Method used

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  • Optical communication system, its optical communication method, and communication device
  • Optical communication system, its optical communication method, and communication device
  • Optical communication system, its optical communication method, and communication device

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Embodiment Construction

[0034] Hereinafter, referring to the drawings, embodiments of the present invention will be described.

[0035] [A] Description of an embodiment of the present invention

[0036] figure 1 , image 3 Is a block diagram showing an optical communication system 1 according to an embodiment of the present invention, figure 2 It is a block diagram emphatically showing the functions of the communication device 5 in the optical communication system 1 according to the present embodiment. in figure 1 , image 3 The optical communication system 1 shown is the same as that described above Figure 7 The system shown is the same, and constitutes a network system in which PON 4 is accommodated in each node device 3 forming the metropolitan area ring 2.

[0037] In addition, the PON 4 uses, for example, a passive optical splitter 10 to connect a communication device 5 with an OLT function and a plurality of ONUs 6, thereby forming a tree-like distributed topology. In addition, the symbol 8 in...

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PUM

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Abstract

The invention relates to an optical communication system inhibiting delay and jitter during network communication, improving the communication quality, and an optical communication method. For this purpose, the communication unit includes: a first terminator that terminates a communication channel in the first optical communication scheme established between the communication unit and another communication unit; a second terminator that terminates a signal in the second optical communication scheme; and a path setting switch that switches between a first signal path setting and a second signal path setting.

Description

Technical field [0001] The present invention relates to an optical communication system, an optical communication method, and a communication device, and more particularly to a technology applied to an optical access network system that suppresses delay and fluctuation and transmits a high-speed optical signal to be sent to a user. Background technique [0002] In recent years, with the popularization of the Internet, the pursuit of high-speed and economical communication systems has become an important issue. As a network of access systems, PON (Passive Optical Network) is being applied. A typical PON refers to the following optical network structure, that is, a "1×N" passive optical splitter (passive optical splitter) is used to combine an optical line terminal device (OLT: Optical Line Termination) and multiple optical network units ( ONU: Optical Network Unit) is connected to form a tree-like distributed network topology. [0003] With the development of Internet technology, ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04B10/20H04L12/44H04L12/701H04B10/25H04B10/2581H04B10/27H04L12/46
CPCH04L12/42H04L45/04H04L45/124H04L45/62H04L12/2852H04B10/25H04B10/2581H04B10/27
Inventor 曾根恭介木下进
Owner FUJITSU LTD