Wavelength division multiplexing (WDM) module and method for realizing single-fiber transmission in 10giga (G) Ethernet passive optical network (EPON) system

A transmission method and single-fiber technology, applied to WDM modules and fields that realize single-fiber transmission in 10G EPON systems, can solve problems such as troublesome networking, and achieve the effect of simplifying networking

Inactive Publication Date: 2011-05-04
FENGHUO COMM SCI & TECH CO LTD
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  • Abstract
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Problems solved by technology

Therefore, it is necessary to use dual-fiber transmission in the 10G EPON system, which brings troubles to the networking

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  • Wavelength division multiplexing (WDM) module and method for realizing single-fiber transmission in 10giga (G) Ethernet passive optical network (EPON) system
  • Wavelength division multiplexing (WDM) module and method for realizing single-fiber transmission in 10giga (G) Ethernet passive optical network (EPON) system
  • Wavelength division multiplexing (WDM) module and method for realizing single-fiber transmission in 10giga (G) Ethernet passive optical network (EPON) system

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0046] In the present invention, by controlling the wavelength range, the upstream wavelength does not overlap (the wavelength range of 1270nm is controlled to be 1270±6.5nm, and the wavelength range of 1310nm is controlled to be 1280-1360nm), so that the optical signals of each wavelength are wavelength-division multiplexed to realize single-fiber Transmission, which simplifies the networking of 10G EPON system and makes 10G EPON system better compatible with 10G&1G ONU.

[0047] The present invention provides the WDM module for realizing single-fiber transmission in the following 10G EPON system, the WDM module includes: a three-channel WDM module installed at the OLT end and a two-channel WDM module installed at the ONU end, and the three-channel WDM module completes Wavelength division multiplexing of three-channel four-wavelength optical signals; the two...

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Abstract

The invention relates to a wavelength division multiplexing (WDM) module and method for realizing single-fiber transmission in a 10giga (G) Ethernet passive optical network (EPON) system. The WDM module comprises a three-channel WDM module installed at the optical line terminal (OLT) and a two-channel WDM module installed at the optical network unit (ONU) terminal, wherein the three-channel WDM module completes WDM of the three-channel four-wavelength optical signals; and the two-channel WDM module completes WDM of two-channel two-wavelength optical signals. The WDM module and the method havethe following beneficial effects: the WDM module and the method avoid overlap of the two kinds of optical signals by controlling the wavelength range of the optical signals with the wavelength of 1270nm to be 1270+/-6.5nm and controlling the wavelength range of the optical signals with the wavelength of 1310nm to be 1280-1360nm, thus realizing WDM of the optical signals with various wavelengths, so that the 10G EPON system can adopt the single fiber for transmission, thus simplifying networking.

Description

technical field [0001] The invention relates to the technical field of multi-wavelength optical signal wavelength division multiplexing in a 10G EPON system, in particular to a WDM module and a method for realizing single-fiber transmission in the 10G EPON system. Background technique [0002] At present, mainstream PON (passive optical network) technology has made significant progress and has begun large-scale deployment. EPON (Ethernet Passive Optical Network) and GPON (Gigabit Passive Optical Network) technologies have made great progress in terms of technical standards, equipment functions and performance, and interoperability equipment costs. These all mark the second generation of PON technology. Maturity and large-scale application. But on the other hand, some new services (such as HDTV (high-definition television), telepresence, etc.) and new network deployment methods put forward higher requirements for PON technology, such as requiring each ONU (Optical Network Un...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04J14/02H04B10/12H04B10/25
Inventor 王可严友明赵幸
Owner FENGHUO COMM SCI & TECH CO LTD
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