Device for realizing channel self-adaptive dispersion compensation on main optical channel

A dispersion compensation and channel-level technology, applied in the field of optical communication, can solve the problems of small dispersion compensation bandwidth, large dispersion compensation bandwidth, and the inability of dispersion compensators to compensate multi-channel signals at the same time, so as to increase capacity, solve insufficient bandwidth, and improve transmission performance effect

Inactive Publication Date: 2013-08-07
江苏三农乐购电子商务有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, like most of the existing dispersion compensation technologies, the dispersion compensation bandwidth and the dispersion compensation amount of the channel-level adjustable dispersion compensator have a mutual restrictive relationship: when the dispersion compensation amount is large, the dispersion compensation bandwidth is small; the dispersion compensation amount When smaller, the dispersion compensation bandwidth is larger
Taking my country's 80×40Gb / s WDM system as an example, the channel spacing is 50GHz, and the signal bandwidth is approximately 50GHz, but the channel spacing of the existing multi-channel dispersion compensation with a dispersion bandwidth of 50GHz is 100GHz or 200GHz, which causes the dispersion compensator Cannot simultaneously compensate multi-channel signals with a channel spacing of 50GHz

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
  • Device for realizing channel self-adaptive dispersion compensation on main optical channel
  • Device for realizing channel self-adaptive dispersion compensation on main optical channel
  • Device for realizing channel self-adaptive dispersion compensation on main optical channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: A channel-level adaptive dispersion compensation device on a wavelength division system with 50 GHz channel spacing

[0018] The channel interleaving and demultiplexing device adopts 50-100GHz, that is, the input wavelength of 50GHz channel spacing is demultiplexed into 2 odd-numbered channel signals and even-numbered channel signals with 100GHz channel spacing. Each dispersion compensator can complete multi-channel dispersion compensation with 100GHz channel spacing, the dispersion bandwidth and maximum dispersion amount meet the requirements, and the dispersion of each channel is adjustable. The odd channel level adjustable dispersion compensator 21 completes the adaptive dispersion compensation of odd channel signals, and the even channel level adjustable dispersion compensator 22 completes the adaptive dispersion compensation of even channel signals, and then respectively enters into the corresponding 100GHz channel interval WDM The multi-channel signa...

Embodiment 2

[0019] Embodiment 2: A channel-level adaptive dispersion compensation device on a wavelength division system with 100 GHz channel spacing

[0020] The channel interleaving and demultiplexing device adopts 100-200GHz, that is, the input wavelength of 100GHz channel spacing is demultiplexed into 2 odd channel signals and even channel signals with 200GHz channel spacing. Each adjustable dispersion compensator can complete multi-channel dispersion compensation with 200GHz channel spacing, the dispersion bandwidth and maximum dispersion amount meet the requirements, and the dispersion of each channel is adjustable. The odd channel level adjustable dispersion compensator 21 completes the adaptive dispersion compensation of the odd channel signals, and the even channel level adjustable dispersion compensator 22 completes the adaptive dispersion compensation of the even channel signals. Then use 100-200GHz 2:1 MUX51 or 3dB power coupler to re-multiplex the odd-numbered channel signal ...

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

The invention discloses a device for realizing channel self-adaptive dispersion compensation on a main optical channel, comprising a channel interweave demodulation multiplexer, a channel adjustable dispersion compensator, a wave decomposition multiplexer and an optical receiver. The device for realizing channel self-adaptive dispersion compensation on a main optical channel is characterized in that main optical channel signals are divided into odd channel signals and even channel signals after being input into the channel interweave demodulation multiplexer and respectively carry out the dispersion compensation. The device for realizing channel self-adaptive dispersion compensation on a main optical channel solves the problem of insufficient bandwidth of the dispersion compensation, satisfies the requirements of a dispersion compensation bandwidth and dispersion adjusting quantity, reduces the cost of a wave decomposition system, increases the volume of the wave decomposition system and increases the transmission performance of the wave decomposition system.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a channel-level self-adaptive dispersion compensation device of a wavelength division multiplexing system. Background technique [0002] The ITU-T recommendation G.667, "Characteristics of adaptive chromatic dispersion compensators", provides a method for adaptive chromatic dispersion compensation. Single channel adaptive dispersion compensation including WDM system ( figure 1 ) and multi-channel adaptive dispersion compensation ( figure 2 ). At present, most commercial WDM systems use figure 1 In the implementation scheme, each optical receiver is equipped with an adjustable dispersion compensator; although the dispersion compensator can perform multi-channel compensation, the channel-level dispersion compensation adjustment technology is not yet mature. figure 2 scheme is rarely used. [0003] Kenya Suzuki of NTT Photon Laboratory in Japan recently reported a multi-c...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04J14/02H04B10/2507H04B10/2525
Inventor 沈百林李红军
Owner 江苏三农乐购电子商务有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap