CN101814951B - High-density multiple-wavelength optical time domain reflectometer - Google Patents
High-density multiple-wavelength optical time domain reflectometer Download PDFInfo
- Publication number
- CN101814951B CN101814951B CN2009101261510A CN200910126151A CN101814951B CN 101814951 B CN101814951 B CN 101814951B CN 2009101261510 A CN2009101261510 A CN 2009101261510A CN 200910126151 A CN200910126151 A CN 200910126151A CN 101814951 B CN101814951 B CN 101814951B
- Authority
- CN
- China
- Prior art keywords
- module
- light
- wavestrip
- optical
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Optical Communication System (AREA)
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
The present invention relates to a kind of high-density multiple-wavelength optical time domain reflectometer.
Background technology
Rapid growth along with fhe global the Internet, legacy network has been unable to cope with communication revolution and has caused the demand that transmission is used to high speed information, and the variation that the maturation of opto-electronics technology and product are used, be the needed a large amount of frequency ranges of fhe global the Internet, high-quality multi-media network and various data communication of sharply growing up, best solution route is provided in good time.Therefore, various optical communication network constructions occur in succession, wherein are expected most with passive type optical-fiber network service system again.For in response to after following a large amount of use of this service system, the measurement of its ad hoc network framework and monitoring requirements are necessary to invent and can conveniently measure and the device of monitoring each difference route of passive optical network.
Generally speaking, traditional optical time domain reflectometer (Optical Time Domain Reflectometer, OTDR) uses when the measurement of point-to-point fiber optic network or monitoring, can handle a situation with ease.Yet, when facing the passive type optical-fiber network, because of its congenital framework cause with a plurality of difference routes, just seem awkward, because of the measurement mode of its single wavelength situation of each difference fiber optic network of identification individually.
Summary of the invention
Purpose of the present invention namely is to provide a kind of high-density multiple-wavelength optical time domain reflectometer, coordinate point-to-point or point-to-multipoint the fiber optic service system lay installation with monitoring equipment, when service system has problem, general machine room can single-ended measurement optical line by latest Status, clearly put in order be service system or optical line by problem, and correctly clearly illustrate route and the position of obstacle, to reduce the maintenance and operation cost and to improve maintenance efficiency.
For realizing above purpose, the present invention has taked following technical scheme: high-density multiple-wavelength optical time domain reflectometer, be the combination that utilizes many group optical devices and control module, escalate into the optical time domain reflectometer of high-density multiple-wavelength to reach the optical time domain reflectometer that to export individual quantities photometry ripple.The present invention is responsible for master control by control module, the wide wavestrip light wave of optical time domain reflectometer is guided with the light loop module, select module converts to become the narrow wavestrip light wave of appointment by narrow wavestrip, the light amplification module is amplified it to improve the designs such as luminous power again, can produce respectively the high density light wave of a plurality of different wave lengths.
The present invention compared with prior art has following advantage:
1. the present invention's relevant monitoring assembly of arranging in pairs or groups, can monitor simultaneously and show the optical fiber latest Status of a plurality of difference routes on the fiber optic network of point-to-point or point-to-multipoint, realize fast, the targets of a large amount of monitorings, but and the resolve gaps route obstacle location problem that is difficult to demarcate.
2. the present invention can carry out single-ended, long-term automatic monitoring in machine room, correctly put in order fast service system or optical line by obstacle, last state by each difference route more can carry out preventive maintenance, guarantee reliability and the stability of passive type optical-fiber network, and then the lifting maintenance efficiency, its economic benefit is very obvious.
Description of drawings
Fig. 1 is the configuration diagram of high-density multiple-wavelength optical time domain reflectometer of the present invention;
Fig. 2 is that the narrow wavestrip of this high-density multiple-wavelength optical time domain reflectometer selects first of module to implement illustration;
Fig. 3 is that the narrow wavestrip of this high-density multiple-wavelength optical time domain reflectometer selects second of module to implement illustration; And
Fig. 4 is that the narrow wavestrip of this high-density multiple-wavelength optical time domain reflectometer selects the 3rd of module to implement illustration;
description of reference numerals: 10, high-density multiple-wavelength optical time domain reflectometer, 11, control module (ControlModule), 12, optical time domain reflectometer (Optical Time Domain Reflectometer, OTDR), 13, light loop module one (Optical Circulator), 14, narrow wavestrip is selected module one, 15, light amplification module (Optical Amplifier), 16, narrow wavestrip is selected module two, 17, light loop module two (OpticalCirculator), 18, fiber optic network, 141, high density partial wave multitask module one (WavelengthDivision Multiplexer), 142, light path is selected module one (Optical Channel Selector, OCS), 143, high density partial wave multitask module three (Wavelength Division Multiplexer), 144, adjustable optical filtration module one, 161, high density partial wave multitask module two (Wavelength DivisionMultiplexer), 162, light path is selected module two (Optical Channel Selector, OCS), 163, light path is selected module (Optical Channel Selector, OCS), 164, adjustable optical filtration module two.
Embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is described in further details.
Embodiment:
The present invention is directed to arbitrary position on fiber optic network, measure or monitor the whether normal device of its optical fiber state, compare with the function of traditional optical time domain reflectometer, the present invention can provide more high density, multi-wavelength more, application more flexiblely.
See also shown in Figure 1ly, be the configuration diagram of high-density multiple-wavelength optical time domain reflectometer of the present invention.High-density multiple-wavelength optical time domain reflectometer 10 of the present invention is by control module 11 master controls.According to specific needs, control the measurement light wave that optical time domain reflectometer 12 is sent wide wavestrip, import narrow wavestrip through light loop module 1 and select module 1.Wherein only have the wavelength of the narrow wavestrip of appointment can be converted out and enter light amplification module 15 to improve luminous power, light wave after amplification enters narrow wavestrip and selects module 2 16, remove non-required light, the wavelength of sending appointment enters light loop module 2 17, via light loop module 2 17, it is imported in fiber optic network 18.On the other hand, by fiber optic network 18, the return light of (Back Scattering) of back scattering is imported into light loop module 1 after entering light loop module 2 17, be imported into again optical time domain reflectometer 12, can grasp the latest Status of whole fiber optic network via measure analysis.
On the implementation, narrow wavestrip of the present invention selects module to have three kinds of diverse ways can reach identical purpose, can following three embodiment for it:
One, the first embodiment:
See also shown in Figure 2ly, select first of module for the narrow wavestrip of high-density multiple-wavelength optical time domain reflectometer of the present invention and implement illustration, wherein should narrow wavestrip select module 1 and 2 16 to be formed by high density partial wave multitask module and light path selection module.high-density multiple-wavelength optical time domain reflectometer 10 of the present invention, by control module 11 master controls, according to specific needs, control optical time domain reflectometer 12 and send the measurement light wave of wide wavestrip, import high density partial wave multitask module 1 through light loop module 1, wide wavestrip light wave can be cut into a plurality of narrow wavestrip light waves, select module 1 via light path, only have the narrow wavestrip light wave of appointment can be switched out to enter light amplification module 15 to improve luminous power, light wave after amplification enters high density partial wave multitask module 2 161, light wave after amplification cuts into a plurality of narrow wavestrip light waves, switch out via the narrow wavestrip light wave of light path selection module 2 162 with appointment again, deliver to light loop module 2 17, via light loop module 2 17, it is imported in fiber optic network 18.On the other hand, the light by fiber optic network 18 back scattering are returned after entering light loop module 2 17, is imported into light loop module 1, then is imported into optical time domain reflectometer 12, can grasp the latest Status of whole fiber optic network via measure analysis.
Two, the second embodiment:
See also shown in Figure 3, select second of module for the narrow wavestrip of high-density multiple-wavelength optical time domain reflectometer of the present invention and implement illustration, wherein this narrow wavestrip selects module 1 to be formed by two groups of high density partial wave multitask modules, and narrow wavestrip selects module 2 16 to select module to be formed by high density partial wave multitask module and light path.high-density multiple-wavelength optical time domain reflectometer 10 of the present invention, by control module 11 master controls, according to specific needs, control optical time domain reflectometer 12 and send the measurement light wave of wide wavestrip, import high density partial wave multitask module 1 through light loop module 1, wide wavestrip light wave can be cut into a plurality of narrow wavestrip light waves, connect with high density partial wave multitask module 3 143 respectively and enter light amplification module 15 to improve luminous power, light wave after amplification enters high density partial wave multitask module 2 161, light wave after amplification is cut into a plurality of narrow wavestrip light waves, switch out via the narrow wavestrip light wave of light path selection module 163 with appointment again, deliver to light loop module 2 17, via light loop module 2 17, it is imported in fiber optic network 18.On the other hand, the light by fiber optic network 18 back scattering are returned after entering light loop module 2 17, is imported into light loop module 1, then is imported into optical time domain reflectometer 12, can grasp the latest Status of whole fiber optic network via measure analysis.
Three, the 3rd embodiment:
See also shown in Figure 4ly, select the 3rd of module for the narrow wavestrip of high-density multiple-wavelength optical time domain reflectometer of the present invention and implement illustration, wherein should narrow wavestrip selection module 1 and 2 16 be formed by the adjustable optical filtration module.high-density multiple-wavelength optical time domain reflectometer 10 of the present invention, by control module 11 master controls, according to specific needs, control optical time domain reflectometer 12 and send the measurement light wave of wide wavestrip, import adjustable optical filtration module 1 through light loop module 1, wherein only have the narrow wavestrip light wave of appointment can be filtered out to enter light amplification module 15 to improve luminous power, light wave after amplification enters adjustable optical filtration module 2 164, the light wave that filtering is non-required, specified narrow wavestrip light wave is delivered to light loop module 2 17, via light loop module 2 17, it is imported in fiber optic network 18.On the other hand, the light by fiber optic network 18 back scattering are returned after entering light loop module 2 17, is imported into light loop module 1, then is imported into optical time domain reflectometer 12, can grasp the latest Status of whole fiber optic network via measure analysis.
Above-listed detailed description is that this embodiment limits the scope of the claims of the present invention for the illustrating of possible embodiments of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the scope of the claims of this case.
Claims (4)
1. a high-density multiple-wavelength optical time domain reflectometer, is characterized in that, comprising:
Control module, according to specific needs, master control optical time domain reflectometer, narrow wavestrip are selected module, light amplification module, the flow process that measures or monitor; Wherein, narrow wavestrip selects module to comprise narrow wavestrip selection module one and narrow wavestrip selection module two;
The light amplification module connects respectively narrow wavestrip with light path and selects module two and narrow wavestrip to select module one, and it selects the luminous power that module one is sent here to amplify narrow wavestrip, then delivers to narrow wavestrip and select module two; And
Optical time domain reflectometer is connected with control module and controlled by it by circuit; Connect the light loop module with light path, send wide wavestrip and measure light wave, and calculate the light wave that the light loop module is returned;
Wherein, the light loop module comprises light loop module one and light loop module two, light loop module one connects optical time domain reflectometer, narrow wavestrip selection module one and light loop module two with light path, it receives the light wave that optical time domain reflectometer sends, then delivers to narrow wavestrip and select module to accept in the lump the light wave that light loop module two is returned; Light loop module two connects narrow wavestrip with light path respectively and selects module two, fiber optic network and light loop module one, and it receives the light wave that narrow wavestrip selects module two to send, then delivers to fiber optic network and the light wave that fiber optic network returns is delivered to light loop module one;
Narrow wavestrip selects module one to connect respectively light loop module one and light amplification module with light path, its light wave that light loop module one is sent here converts narrow wavestrip light wave to, and send narrow wavestrip light wave to the light amplification module, narrow wavestrip selects module two to connect respectively light amplification module and light loop module two with light path, and it is sent the light amplification module light wave of amplifying power here and delivers to light loop module two;
Narrow wavestrip selects module one to receive the described wide wavestrip measurement light wave that light loop module one imports, and the wavelength of the narrow wavestrip of appointment is converted enter the light amplification module to improve luminous power, narrow wavestrip selects module two to remove non-required light, the wavelength of sending appointment enters light loop module two, the light that the fiber optic network back scattering is returned enters light loop module two and is imported into light loop module one afterwards; Optical time domain reflectometer can send the measurement light wave, and not disconnecting is subjected to the light of being returned by the fiber optic network back scattering, completes as calculated the measurement of whole fiber optic network trajectory diagram; Control module is according to the whole flow process of instruction master control, and the trajectory diagram that measures to obtain optical time domain reflectometer captures, calculates, compares and analyzes, to obtain the latest state information of whole optical fiber branching route.
2. high-density multiple-wavelength optical time domain reflectometer as claimed in claim 1, it is characterized in that: described narrow wavestrip is selected module one to comprise high density partial wave multitask module one and is selected respectively one group of module one with light path, the wide wavestrip light wave of the optical time domain reflectometer that its middle-high density partial wave multitask module one will be sent here via group light loop module one cuts into a plurality of narrow wavestrip light waves, and light path select module first with the switching of the narrow wavestrip light wave of appointment out to enter the light amplification module; And narrow wavestrip selects module two also to comprise high density partial wave multitask module two and light path is selected respectively one group of module two, light wave after its middle-high density partial wave multitask module two will be amplified cuts into a plurality of narrow wavestrip light waves, and light path is selected module second the narrow wavestrip light wave of appointment to be switched out to go forward side by side in light inlet loop module two and fiber optic network.
3. high-density multiple-wavelength optical time domain reflectometer as claimed in claim 1, it is characterized in that: described narrow wavestrip selects module one to comprise two groups of high density partial wave multitask modules, the wide wavestrip light wave of the optical time domain reflectometer that its middle-high density partial wave multitask module one will be sent here via light loop module one cuts into a plurality of narrow wavestrip light waves, then connects with high density partial wave multitask module three and enter the light amplification module; And narrow wavestrip selects module second to comprise high density partial wave multitask module two and each group of light path selection module, light wave after its middle-high density partial wave multitask module two will be amplified cuts into a plurality of narrow wavestrip light waves, and light path is selected module the narrow wavestrip light wave of appointment to be switched out to go forward side by side in light inlet loop module two and fiber optic network.
4. high-density multiple-wavelength optical time domain reflectometer as claimed in claim 1, it is characterized in that: described narrow wavestrip selects module one to comprise adjustable optical filtration module one, and wherein the wide wavestrip light wave of the optical time domain reflectometer that will send here via light loop module one of adjustable optical filtration module one filters out the narrow wavestrip light wave of appointment to enter the light amplification module; Narrow wavestrip selects module two to comprise adjustable optical filtration module two, and the narrow wavestrip light wave that the light wave after it will amplify filters out appointment is gone forward side by side in light inlet loop module two and fiber optic network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101261510A CN101814951B (en) | 2009-02-25 | 2009-02-25 | High-density multiple-wavelength optical time domain reflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101261510A CN101814951B (en) | 2009-02-25 | 2009-02-25 | High-density multiple-wavelength optical time domain reflectometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101814951A CN101814951A (en) | 2010-08-25 |
| CN101814951B true CN101814951B (en) | 2013-11-06 |
Family
ID=42622083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101261510A Expired - Fee Related CN101814951B (en) | 2009-02-25 | 2009-02-25 | High-density multiple-wavelength optical time domain reflectometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101814951B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589592B (en) * | 2012-02-21 | 2014-12-17 | 南京大学（苏州）高新技术研究院 | Multi-wavelength light source-based Brillouin optical time domain reflectometer |
| CN106059671A (en) * | 2016-07-13 | 2016-10-26 | 无锡路通视信网络股份有限公司 | Outdoor optical network platform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172254A (en) * | 1995-11-01 | 1998-02-04 | 住友电气工业株式会社 | Laser light source apparatus, OTDR apparatus, and optical communication line inspection system |
| EP1001562A2 (en) * | 1998-11-13 | 2000-05-17 | NEC Corporation | Optical transmission system with break point detection using an optical amplifier and corresponding bidirectional transmission system |
| KR20080060709A (en) * | 2006-12-27 | 2008-07-02 | 주식회사 케이티 | In-line monitoring system and method for wdm-pon using probe-pulse coding tunable otdr |
| CN101304283A (en) * | 2008-07-04 | 2008-11-12 | 电子科技大学 | Method and device for fault localization and safety prevention detection using passive optical network |
-
2009
- 2009-02-25 CN CN2009101261510A patent/CN101814951B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172254A (en) * | 1995-11-01 | 1998-02-04 | 住友电气工业株式会社 | Laser light source apparatus, OTDR apparatus, and optical communication line inspection system |
| EP1001562A2 (en) * | 1998-11-13 | 2000-05-17 | NEC Corporation | Optical transmission system with break point detection using an optical amplifier and corresponding bidirectional transmission system |
| KR20080060709A (en) * | 2006-12-27 | 2008-07-02 | 주식회사 케이티 | In-line monitoring system and method for wdm-pon using probe-pulse coding tunable otdr |
| CN101304283A (en) * | 2008-07-04 | 2008-11-12 | 电子科技大学 | Method and device for fault localization and safety prevention detection using passive optical network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101814951A (en) | 2010-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103647600B (en) | A kind of multi-channel intelligent optical testing device | |
| CN101924962B (en) | System and method thereof for detecting fiber faults | |
| CN103620985B (en) | Use the PON supervision that OTDR measures | |
| CN101296034A (en) | Method and apparatus for transmission of monitoring information, passive optical network system | |
| CN102201864A (en) | Loss testing apparatus for multi-channel optical device | |
| EP2469745A1 (en) | A method for automatic configuration of an optical network element | |
| CN101442691A (en) | Optical cable monitoring system based on passive optical network system | |
| CN103890557A (en) | PON supervision using OTDR measurements | |
| CN102238438B (en) | A kind ofly to grow apart from box and the processing method to up-downgoing light thereof | |
| CN201365254Y (en) | Novel one-drag-more intelligent radio frequency optical module | |
| CN103227677A (en) | Optical fiber reflector and method of utilizing optical fiber reflector to achieve PON monitoring | |
| CN101814951B (en) | High-density multiple-wavelength optical time domain reflectometer | |
| CN104821478B (en) | A kind of optical module integrated sends the automatic debug circuit of light eye figure | |
| CN102238437B (en) | A kind of length is from box and the processing method to up-downgoing light thereof | |
| CN201369727Y (en) | Optical line terminal | |
| CN104125517A (en) | Light transmission system, mode coupler and light transmission method | |
| CN101478348A (en) | Method, apparatus and system for relay equipment management in point to multi-point system | |
| CN201413415Y (en) | DWDM SFD with controllable wavelength | |
| CN201985864U (en) | Optical network unit debugging system based on bosa on board (BOB) | |
| CN103516431A (en) | Photoelectric light repeater, long-distance box, and processing method thereof for uplink/downlink optical signal | |
| CN103002358B (en) | optical network unit of passive optical network and control method thereof | |
| CN102916740A (en) | Bidirectional optical power measurement device and method for multi-wavelength passive optical network | |
| CN109982171A (en) | One kind can zoom out multi-hop optical access network and intelligent management system | |
| CN202231724U (en) | Calibrating device of passive optical network optical power meter | |
| CN205283548U (en) | Raman fiber amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160225 |