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

High-density multiple-wavelength optical time domain reflectometer

An optical time domain reflection and high-density technology, which is applied in optical fiber transmission, electromagnetic wave transmission systems, electrical components, etc., can solve the problems of inability to individually identify divergent optical fiber networks, etc., to improve maintenance efficiency, mass monitoring, and ensure reliability and stability sexual effect

Inactive Publication Date: 2013-11-06
CHUNGHWA TELECOM CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the face of passive optical networks, due to the innate architecture of multiple divergent routes, it appears to be stretched, because the single-wavelength measurement method can no longer individually identify the status of each divergent optical fiber network

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
  • High-density multiple-wavelength optical time domain reflectometer
  • High-density multiple-wavelength optical time domain reflectometer
  • High-density multiple-wavelength optical time domain reflectometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] The present invention is a device for measuring or monitoring the normal state of the optical fiber at any position on the optical fiber network. Compared with the function of the traditional optical time domain reflector, the present invention can provide higher density, more wavelengths, and more flexible Applications.

[0017] see figure 1 Shown is a schematic diagram of the structure of the high-density multi-wavelength optical time domain reflector of the present invention. The high-density multi-wavelength optical time domain reflector 10 of the present invention is mainly controlled by a control module 11 . According to the specified requirements, the optical time domain reflector 12 is controlled to send out the wide-band measurement light wave, which is guided into the narrow-band selection module 14 through the optical loop module 13 . Wherein only the wavelength of the specified narrow band can be converted and enter the optical amplification module 15 to i...

no. 1 example

[0020] see figure 2 As shown, it is a diagram of the first embodiment of the narrow-band selection module of the high-density multi-wavelength optical time domain reflector of the present invention, wherein the narrow-band selection modules one 14 and two 16 are high-density wave division multitasking modules and optical path selection composed of modules. The high-density multi-wavelength optical time-domain reflector 10 of the present invention is controlled by the control module 11, and according to the specified requirements, the optical time-domain reflector 12 is controlled to send out wide-band measurement light waves, which are introduced into the high-density analytical light wave through the optical cycle module-13. The wave multitasking module one 141 can cut the broadband light wave into multiple narrow-band light waves, and through the optical path selection module one 142, only the specified narrow-band light wave will be switched out to enter the optical amplif...

no. 2 example

[0022] see image 3 As shown, it is a diagram of the second embodiment of the narrow-band selection module of the high-density multi-wavelength optical time domain reflector of the present invention, wherein the narrow-band selection module 14 is composed of two groups of high-density wave division multitasking modules, and The narrowband selection module 2 16 is composed of a high-density wave division multi-task module and an optical path selection module. The high-density multi-wavelength optical time-domain reflector 10 of the present invention is controlled by the control module 11, and according to the specified requirements, the optical time-domain reflector 12 is controlled to send out wide-band measurement light waves, which are introduced into the high-density analytical light wave through the optical cycle module-13. Wave multi-tasking module 1 141 can cut broadband light waves into multiple narrow-band light waves, which are respectively connected with high-density...

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 high-density multiple-wavelength optical time domain reflectometer. Broad band measuring optical waves of the optical time domain reflectometer are converted into a plurality of assignable narrow band optical waves by using a wave band selection principle and assigned wavelengths can be sent to an optical fiber network to achieve the aim of measuring or monitoring the optical loss at any position in the optical fiber network. The device comprises a control module (1), an OTDR (Optical Time Domain Reflectometer) (2), an optical circulation module (Optical Circulator) (3), an optical amplification module (4) and a narrow band selection module (5), wherein the control module is used for mainly controlling relevant modules and carrying out the flows of measuring and monitoring according to assigned requirements; the optical time domain reflectometer is used for sending out the broad band measuring optical waves and calculating returned optical waves; the optical circulation module is used for introducing the optical waves into a relevant target module; the optical amplification module is used for amplifying the optical power of the narrow band optical waves; and the narrow band selection module is used for converting coming light into the narrow band optical waves and sending out the assigned narrow band optical waves.

Description

technical field [0001] The invention relates to a high-density multi-wavelength optical time domain reflector. Background technique [0002] With the rapid growth of the global Internet, the traditional network has been unable to cope with the demand for high-speed information transmission applications caused by the communication revolution. The maturity of the optoelectronic industry technology and the diversification of product applications are timely for the rapid growth of the global Internet, high-quality multimedia networks and The large amount of bandwidth required by various data communications provides the best solution. Therefore, various optical communication network architectures have emerged one after another, among which the passive optical network service system is the most promising. In order to meet the measurement and monitoring requirements of the special network architecture after the service system is widely used in the future, it is necessary to invent...

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): H04B10/07H04B10/25H04B10/071
Inventor 王志益廖泰璋王生文吴嘉宪蔡福源戴松伟
Owner CHUNGHWA TELECOM CO LTD