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Automatic optical distribution frame, and calibration method and system thereof

A technology of automatic wiring and optical fiber, applied in the field of communication, can solve the problems of increasing insertion loss, increasing cost, increasing packaging cost, etc., and achieve the effect of improving calibration accuracy, reducing complexity, and reducing cost

Active Publication Date: 2011-07-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method increases the number of optical devices, and increases the packaging cost due to the increase in the complexity of the optical cross-connect module, resulting in an increase in the cost of AODF. At the same time, because part of the signal light is split as the detection light, the insertion loss is increased.

Method used

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  • Automatic optical distribution frame, and calibration method and system thereof
  • Automatic optical distribution frame, and calibration method and system thereof
  • Automatic optical distribution frame, and calibration method and system thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The method for calibrating the optical fiber automatic distribution frame provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method steps include:

[0038] S101. The optical fiber automatic distribution frame establishes the connection between the input optical fiber and the output optical fiber according to the connection instruction issued by the optical fiber management system, wherein one end of the input optical fiber is connected to the optical line terminal, and one end of the output optical fiber is connected to the optical network unit.

[0039] Specifically, AODF searches for the deflection angle required by the MEMS micro-mirror corresponding to the connection between the input fiber and the output fiber according to the connection command issued by the FMS (Fiber Management System, fiber management system), calculates the control signal according to the deflection angle, and controls the The MEMS micromirror is rotated to a spe...

Embodiment 2

[0045] For the AODF calibration method provided by the embodiment of the present invention, refer to figure 2 , image 3 Be explained. in, figure 2 It is a schematic structural diagram of the AODF system corresponding to the method of this embodiment; image 3 It is a flow chart of the method steps in this embodiment.

[0046] Such as figure 2 As shown, the AODF 20 includes an optical crossover module 203 and a MEMS controller 202, and the mth input optical fiber connected to the OLT 21 is connected to the ONU 24 connected to the nth input optical fiber through the AODF 20, wherein the other end of the OLT 21 It is connected with EMS or OSS22, one end of EMS or OSS 22 is connected with FMS 23, and the other end of FMS 23 is connected with MEMS controller 202 in AODF 20, wherein optical cross module 203 includes MEMS micro-mirror array 201.

[0047] S301. The FMS 23 issues a connection instruction to the controller 202 of the AODF 20, requiring the m th input optical fi...

Embodiment 3

[0072] For the AODF calibration method provided by the embodiment of the present invention, refer to Figure 4 , Figure 5 Be explained. in, Figure 4 It is a schematic structural diagram of the AODF system corresponding to the method of this embodiment; Figure 5 It is a flow chart of the method steps in this embodiment.

[0073] S501. The FMS 23 issues a connection instruction to the controller 202 of the AODF 20, requiring the mth input optical fiber to establish a connection with the nth output optical fiber.

[0074] S502, the controller 202 finds the deflection angle value or the control signal (first control signal) value required by the corresponding micromirror of the MEMS micromirror array 201 when the two optical fiber connections are established in the pre-calibration information stored internally, Then calculate the control signal value according to the deflection angle value or directly output the control signal to the MEMS micro-mirror array 201 according to...

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PUM

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Abstract

The embodiment of the invention provides an automatic optical distribution frame, and a calibration method and a calibration system thereof, which relate to the field of communication. The complexity of a micro-electro-mechanical system (MEMS) micro mirror device is reduced, the cost of the automatic optical distribution frame (AODF) is reduced, and the calibration accuracy of the automatic optical distribution frame is improved. The method comprises the following steps of: establishing connection between an input optical fiber and an output optical fiber according to a connection instruction transmitted by a fiber management system, wherein one end of the input optical fiber is connected with an optical line terminal, and one end of the output optical fiber is connected with an optical network unit; and calibrating the connection between the input and output optical fibers according to an insertion loss value of an optical fiber link consisting of the input and output optical fibers. The embodiment of the invention is used for the calibration of the MEMS AODF.

Description

technical field [0001] The invention relates to the communication field, in particular to an optical fiber automatic distribution frame, a calibration method and a system thereof. Background technique [0002] Optical fiber has the advantages of large bandwidth capacity, low loss, and high reliability. It is an ideal transmission medium for large-capacity and high-speed transmission. It was originally mainly deployed in backbone and metropolitan area networks. Now, with the continuous improvement of user bandwidth requirements, it is continuously extended to users. The optical access network uses optical fiber as the transmission medium and optical fiber as the information carrier for users to access the network. With the large-scale deployment of the optical access network, operators need to manage a large number of optical fibers. [0003] The automatic optical distribution frame (Automated / Automatic Optical Distribution Frame, AODF) can automatically carry out the wiring ...

Claims

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Application Information

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IPC IPC(8): H04B10/12H04B10/08H04B10/07H04B10/25H04Q1/14
Inventor 王卫阳
Owner HUAWEI TECH CO LTD
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