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

WDM system channel power dynamic equalization method equalizing optical amplifier thereof

A channel power and wavelength division multiplexing technology, applied in the field of erbium-doped fiber amplifiers

Inactive Publication Date: 2003-05-21
TSINGHUA UNIV
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to propose a new method for solving the dynamic equalization problem of WDM system channel power at the deficiencies of the prior art

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
  • WDM system channel power dynamic equalization method equalizing optical amplifier thereof
  • WDM system channel power dynamic equalization method equalizing optical amplifier thereof
  • WDM system channel power dynamic equalization method equalizing optical amplifier thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] according to figure 2 Optical path structure shown, wavelength division multiplexing optical fiber multiplexer MUX21, erbium-doped optical fiber EDF21, optical isolator ISO22, adjustable optical attenuator VOA, multiplexer MUX22, erbium-doped optical fiber EDF22, optical isolator ISO23, fiber grating filter GFF, multiplexer MUX23, erbium-doped optical fiber EDF23, multiplexer MUX24, and erbium-doped optical fiber EDF24 are sequentially connected, the 211 end of the multiplexer MUX21, the 221 end of MUX22, the 231 end of MUX23 and the 241 end of MUX41 respectively The pumping sources Pump21, Pump22, Pump23 and Pump24 are connected. In order to prevent the influence of light reflection, the 212 end of the multiplexer MUX21 and the free end 204 of the doped fiber EDF24 are respectively connected to the optical isolator ISO21 and ISO24, and are respectively used as the input end and the output end of the amplifier signal light; The change of the optical power of the signa...

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

A method for the dynamic balance of the wavelength dividing multiplexing system channel power and an equalizing optical amplifier belong to the technology field of the high speed broadband fiber communication and the optical amplifier. The invention is characterized by utilizing the linear relationship between the channel power variation and the strain of the pumping power and the light attenuation, and integrating the mechanism of flatting the grain spectrum and regulating the grain range and the light amplification. It realizes the flatness of the dynamic gain spectrum and maintains the equalization and the invariableness of the multi-channel output power at the same time. It can be designed independently according to the anticipated system parameters, and is fit for the point-to-point multiple system and the dynamic power balance of the light network simultaneously.

Description

technical field [0001] A method for dynamic equalization of channel power in a wavelength division multiplexing (WDM) system and an equalized optical amplifier thereof belong to the technical field of high-speed broadband optical fiber communication and optical amplifiers, and in particular relate to a method for dynamic equalization of channel power in a WDM optical fiber communication network and an erbium-doped erbium for power equalization Optical Fiber Amplifier (EDFA). Background technique [0002] The advent of EDFA (1986) has triggered a major leap in the development of optical fiber communication technology. The WDM transmission technology amplified by EDFA has become the leading direction of the development of optical fiber communication engineering systems today. With the rapid growth of various communication services such as data, voice, image, and multimedia in recent years, optical communication systems continue to develop rapidly in the direction of high speed...

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 Applications(China)
IPC IPC(8): G02F1/39H04J14/02
Inventor 彭江得冯雪刘小明
Owner TSINGHUA UNIV