Wavelength division multiplexing passive optical network device

A technology of passive optical network and wavelength division multiplexing, which is applied in multiplexing system selection device, selection device, electromagnetic wave transmission system, etc., to achieve long-distance transmission, solve the problem of insufficient transmission distance, and improve the available bandwidth of the system Effect

Inactive Publication Date: 2008-03-12
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many technologies such as spectrum segmentation technology, FP laser injection locking technology, etc. to realize WDM PON systems, as well as traditional

Method used

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Embodiment Construction

[0031] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] The device of the present invention includes a central office optical line terminal (OLT, Optical Line Termination), a remote node passive optical multiplexing and demultiplexing unit (OMD, Optical Mux & Demux), and n terminal optical network terminals (ONT, Optical Network Termination );

[0033] The central office to the remote node is a single-fiber bidirectional structure, carrying the transmission of n services, with 2×n wavelengths, of which the n wavelengths from A are a1, a2,...,an, and the n wavelengths from B are b1 ,b2,...,bn;

[0034] The central office OLT includes an optical transponder unit (OTU, Optical Transponder Unit) and an OMD combination unit; the OTU completes the forwarding service of 10Gbps rate, and further includes n groups of OTU modules from OTUa1_T / OTUb1_R to OTUan_T / OTUbn_R, wherein OTUa1_T represents A...

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Abstract

The utility model provides a wave division multiplex passive optical network device, which comprises a central optical link terminal, a remote terminal node passive photosynthesis component wave unit and n optical network terminals. The central optical link terminal includes a optical retransmission unit and a photosynthetic component wave module; the optical retransmission unit completes retransmission service of which the rate is 10Gbps and further comprises n groups of the OTU modules; the remote terminal node passive photosynthetic component wave unit is a heat-insulated passive module which is used to complete the wave splitting of the forward wave length and the wave coupling of the retrograding wave length. The optical network terminal includes a group of OTU modules which is correspondent to the central optical link terminal, so as to jointly complete one information transmission between the central part and the terminal. As compared with the existing technology, the utility model realizes the 10 Gbps WDM PON for the individual user and improves the available bandwidth of the system. Meanwhile, the deficient transmission range is well solved, so as to achieve the long distance transmission with 10Gbps' WDM PON.

Description

technical field [0001] The invention relates to an optical fiber intervening network system, in particular to a wavelength division multiplexing passive optical network (WDM PON, Wavelength Division Multiplexing Passive Optical Network) device capable of realizing n×10Gbps. Background technique [0002] The rapid development of Internet technology and communication technology has accelerated the development of social economy, while the social economy and people's demand for information, communication and services have increased, which has put forward higher requirements for communication technology, higher bandwidth, faster Higher speed, better stability, and support for multimedia and interactive services are constantly promoting the development of basic communication technologies. Broadband access technology is constantly updating technology under such a driving force. The explosive growth of Internet services has caused a huge demand for bandwidth. In the future, the acce...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04B10/12H04Q11/00
Inventor 沈百林
Owner ZTE CORP
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