Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for transmitting wavelength number optimized WDM system power management by optical monitoring channel

An optical monitoring channel and wavelength number technology, applied in the field of optical fiber communication systems and dense wavelength division multiplexing systems, can solve the problems of inaccurate output optical power of amplifiers, inability to respond to it, and automatically make corresponding adjustments, etc. The effect of making up for parameter degradation, making up for power loss, and improving transmission quality

Inactive Publication Date: 2003-06-11
FENGHUO COMM SCI & TECH CO LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, considering the flexibility of system applications, gain-tunable optical amplifier systems have gradually increased, but a key problem has not been well resolved, that is, optical amplifiers cannot adjust the power changes caused by wavelength increase or decrease and non-wavelength increase or decrease factors. The resulting power changes (such as line attenuation changes) are automatically adjusted accordingly (because for WDM systems, channel increase and decrease should be gain locked, and line attenuation changes should be adjusted in real time)
However, if there is no wave drop in the system, the input optical power of a certain station’s amplifier changes due to other factors, the system cannot respond to this, so that the output optical power of the amplifiers of each station will be inaccurate in the future

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for transmitting wavelength number optimized WDM system power management by optical monitoring channel
  • Method for transmitting wavelength number optimized WDM system power management by optical monitoring channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In a DWDM system, under normal circumstances, if the total wave number of the system is constant, the optical power at points MPI-S and S’ is also constant. In a steady state, if the system increases or decreases the wave, the optical power at this point should also change accordingly, which is realized by the gain locking function of the amplifier; if the total wave number of the system does not change and the optical power at S' The change is caused by the aging of the front station amplifier, the increase or decrease of the transmission distance, or other human factors. At this time, the system requires the amplifier to make corresponding adjustments to the output power. The realization of such an automatic adjustment function requires the following links:

[0022] 1) The combiner board must have a statistical function for the wave number of the system;

[0023] 2) The amplification disk can collect the performance energy of the total wave number of the system in rea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention provides a method for optimizing WDM system power management by light monitor channel transfer wavelength numbers to realize judgment to power variation and automatic adjustment to the system and to calculate input numbers by DWDM system originating composite wave disk and rel time take general wave numbers as performance quantity to report to management, end computer management disk transfers the information after processed via light monitor channel to the latter management disk of each station which picks up information to be transferred to amplified disk BCT module for storing via down stream data line, the system sum wave numbers are transferred to amplified disk of each relay as the bases of increase or decrease wave numbers and increase disk automatic and manual distribution order.

Description

technical field [0001] The invention relates to a method for optimizing the power management of a WDM system by transmitting the number of wavelengths through an optical monitoring channel, in particular to an optical fiber communication system that requires optical amplification, such as a high-speed, long-distance or ultra-long-distance Dense Wavelength Division Multiplexing (DWDM) system . The invention is mainly applied to a DWDM system containing an adjustable gain amplifier or a DWDM system containing an electronically adjustable optical attenuator (VOA) + a gain constant amplifier. Background technique [0002] The background technology involved in the present invention includes already realized and commercialized DWDM, gain adjustable amplifier (including EDFA, Raman, etc.), VOA+gain constant amplifier and so on. [0003] The DWDM system is a dense wavelength division multiplexing system, which uses different optical wavelengths to transmit multiple signals from dif...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04B10/07H04J14/02
Inventor 何建明夏珣
Owner FENGHUO COMM SCI & TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com