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Method and controller for wavelength division multiplexing optical network expanding adjustment and detection

A wavelength division multiplexing and controller technology, which is applied in the field of optical communication, can solve problems such as difficult to determine the adjustment pace, slow adjustment speed, and influence on optical signals, and achieve the effect of improving commissioning efficiency

Inactive Publication Date: 2013-05-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the above-mentioned feedback-based adjustment method is adopted, the adjustment pace is difficult to determine, and when the adjustment pace is not selected properly, the adjustment speed may be too slow. Then, the optical parameters of the optical signals in the network need to be repeated. Multiple adjustments may affect other optical signals that have been opened in the network

Method used

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  • Method and controller for wavelength division multiplexing optical network expanding adjustment and detection
  • Method and controller for wavelength division multiplexing optical network expanding adjustment and detection
  • Method and controller for wavelength division multiplexing optical network expanding adjustment and detection

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Embodiment 1

[0029] see figure 1 , a method for WDM optical network capacity expansion commissioning, specifically comprising the following steps:

[0030] Step 101: Calculate the initial power of the wavelength service to be added according to a predetermined rule, and add one or more wavelength services according to the calculated initial power;

[0031] Step 102: Detect the power of each newly added wavelength service during transmission, and calculate the target power of each newly added wavelength service according to the detected value and the initial power;

[0032] Step 103: Calculate the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly added wavelength service when each newly added wavelength service reaches its target power;

[0033] Step 104: When each newly added wavelength service reaches its target power, and the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly added w...

Embodiment 2

[0040] see figure 2 , is an example diagram of a WDM (Wavelength Division Multiplex, wavelength division multiplexing) optical network system architecture corresponding to an embodiment of the present invention, the system includes five sites A, B, C, D and E, wherein, A and E are OTM (Optical Terminal Multiplexer, optical terminal multiplexing) sites, B and D are OLA (Optical Line Amplifier, optical line amplification) sites, and C is ROADM (Reconfigurable Optical Add-Drop Multiplexer, reconfigurable optical add-drop multiplexer) Equipment) site, sites A, B, C, D and E are connected through optical fibers a, b, c and d, and the length of a, b, c and d can be specifically 80km.

[0041] The following is a detailed introduction to the specific structure and corresponding functions of the above-mentioned sites:

[0042] Site A includes OTU (Optical Transponder Unit, optical wavelength conversion single board), M40V (40-channel Multiplexing Board with VOA, 40-wavelength adjustabl...

Embodiment 3

[0113] see Figure 4 , a controller, the controller may specifically be the same as the controller in the method embodiment, including: a service activation module 301, a first calculation module 302, a second calculation module 303, and a commissioning module 304;

[0114] The service opening module 301 is used to calculate the initial power of the wavelength service to be added according to predetermined rules, and add one or more wavelength services according to the initial power;

[0115] The first calculation module 302 is used to detect the power of each new wavelength service during transmission, and calculate the target power of each new wavelength service opened by the service activation module 301 according to the detected value and the initial power;

[0116] The second calculation module 303 is used to calculate the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly-added wavelength service when each newly-added w...

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Abstract

The invention discloses a method and a controller for wavelength division multiplexing optical network expanding adjustment and detection and belongs to the field of optical communication. The method comprises that initial power of an added wavelength business is calculated according to a preset principle and one or more wavelength businesses are newly added according to the initial power; power of each newly added wavelength business in the process of transmission is detected and target power of each newly added wavelength business is calculated respectively according to detection values and the initial power; end-to-end property of each existing wavelength business and end-to-end property of each newly added wavelength business are calculated when each newly added wavelength business reaches the target power; and when each newly added wavelength business respectively reaches the target power and the end-to-end property of each existing wavelength business and the end-to-end property of each newly added wavelength business respectively satisfy the lowest threshold requirement, the power of each newly added wavelength business is adjusted. According to the method and the controller for the wavelength division multiplexing optical network expanding adjustment and detection, the newly added wavelength business can not exert influence on property of each existing wavelength business in a network and efficiency of adjustment and detection can be improved effectively.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a method and controller for capacity expansion and commissioning of a wavelength division multiplexing optical network. Background technique [0002] Optical signals in WDM (Wavelength Division Multiplex) optical networks can be multiplexed, transmitted, amplified, routed, and restored in the optical domain, making WDM optical networks a hot research topic in the field of optical communications. According to whether the network elements in the WDM optical network can perform electrical processing on optical signals, the WDM optical network can be divided into two types: Transparent (transparent) optical network and Opaque (opaque) optical network. For transparent optical networks, optical signals are always transmitted in the form of optical signals during transmission from the source network element to the sink network element, and signal regeneration, switching, and wavelen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/077H04B10/079H04J14/02
CPCH04J14/0221H04B10/07955H04J14/0282H04B10/294H04J14/02216
Inventor 韩建蕊徐明明石礌谭琳
Owner HUAWEI TECH CO LTD
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