CN106301545A - Beam splitter, test device and method of testing - Google Patents
Beam splitter, test device and method of testing Download PDFInfo
- Publication number
- CN106301545A CN106301545A CN201510310433.1A CN201510310433A CN106301545A CN 106301545 A CN106301545 A CN 106301545A CN 201510310433 A CN201510310433 A CN 201510310433A CN 106301545 A CN106301545 A CN 106301545A
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- CN
- China
- Prior art keywords
- beam splitter
- outfan
- fibre structure
- dish fibre
- dish
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- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention provides a kind of beam splitter, test device and method of testing, wherein, this beam splitter includes: the first outfan, dish fibre structure, the second outfan, and this first outfan is connected with one end of this dish fibre structure, wherein, this dish fibre structure by fiber reel around being formed；The other end of this dish fibre structure is set to the second outfan, and this second outfan is for the test output of beam splitter, and the test solving beam splitter exists the problem of blind area, improves the accuracy to passive optical network PON network failure location.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of beam splitter, test device and method of testing.
Background technology
Optical Distribution Network (the Optical of EPON (Passive Optical Network, referred to as PON)
Distribution Network, referred to as ODN) it is point-to-multipoint network structure, network structure is more than the light of point-to-point
Network is complicated.Particularly under fiber to the home (Fiber To The Home, referred to as FTTH) this scene, optical fiber
Having entered into huge numbers of families, the probability that optical fiber breaks down is greatly increased.
In the related, in order to tackle the ODN problem occurred in optical-fiber network in intelligent acess, operator wishes to
Optical time domain reflectometer (Optical Time Domain Reflectometer, referred to as OTDR) is used to carry out periodic detection ODN
Performance, position fault.In PON, beam splitter is an important light path devices, for OTDR, light splitting
The existence of device, brings a problem the most serious to OTDR test: blind area.
Blind area can be divided into Event Dead Zone and decay blind area, the most corresponding reflection event and decay events.Beam splitter has the strongest
Decay, be usually associated with again the strongest reflection, cause having near beam splitter the biggest blind area in OTDR test result.
In the range of blind area, it is impossible to position ODN fault by OTDR.
For in correlation technique, there is the problem of blind area in the test of beam splitter, the most not yet proposes effective solution.
Summary of the invention
The invention provides a kind of beam splitter, test device and method of testing, at least to solve beam splitter in correlation technique
The problem that test exists blind area.
According to an aspect of the invention, it is provided a kind of beam splitter, including: the first outfan, dish fibre structure, second
Outfan；
Described first outfan is connected with one end of described dish fibre structure, wherein, described dish fibre structure by fiber reel around being formed；
The other end of described dish fibre structure is set to the second outfan, and described second outfan is for the test output of beam splitter.
Further, described optical fiber is naked fibre.
Further, the radius of described dish fibre structure is more than the minimum bending radius of described optical fiber.
Further, the fiber lengths of described dish fibre structure is determined by splitting ratio and/or the optical fiber interface type of beam splitter.
Further, the fiber lengths scope of described dish fibre structure is 10m to 1km.
According to another aspect of the present invention, additionally provide a kind of test device, including: housing, this enclosure interior includes:
Beam splitter and dish fibre structure；
The first kind outfan of described beam splitter is connected with one end of described dish fibre structure, the other end of described dish fibre structure with
Equations of The Second Kind outfan on described housing connects.
Further, described optical fiber is naked fibre.
Further, the fiber lengths scope that described dish is fine is 10m to 1km.
According to another aspect of the present invention, additionally provide a kind of beam splitter method of testing, including:
Being connected one end of first outfan of beam splitter with dish fibre structure, wherein, described dish fibre structure is by optical fiber winding escalator
Become；
The other end of described dish fibre structure is set to the second outfan of described beam splitter, and described second outfan is for described
The test output of beam splitter.
Further, the fiber lengths scope of described dish fibre structure is 10m to 1km.
Pass through the present invention, it is provided that a kind of beam splitter, including: the first outfan, dish fibre structure, the second outfan, should
First outfan is connected with one end of this dish fibre structure, wherein, this dish fibre structure by fiber reel around being formed；This dish fibre structure
The other end be set to the second outfan, this second outfan for beam splitter test output, solve the survey of beam splitter
There is the problem of blind area in examination, improves the accuracy to passive optical network PON network failure location.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention
Schematic description and description be used for explaining the present invention, be not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart of beam splitter according to embodiments of the present invention；
Fig. 2 is beam splitter hardware module schematic diagram according to the preferred embodiment of the invention；
Fig. 3 is the structural representation that dish is fine according to the preferred embodiment of the invention.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that in the feelings do not conflicted
Under condition, the embodiment in the application and the feature in embodiment can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second "
Etc. being for distinguishing similar object, without being used for describing specific order or precedence.
Providing a kind of beam splitter in the present embodiment, Fig. 1 is the structured flowchart of beam splitter according to embodiments of the present invention,
As it is shown in figure 1, include: the first outfan 12, dish fibre structure the 14, second outfan 16；
This first outfan 12 is connected with one end of this dish fibre structure 14, wherein, this dish fibre structure 14 by fiber reel around
Formed；
The other end of this dish fibre structure 14 is set to the second outfan 16, and this second outfan 16 is for the test of beam splitter
Output.
By above-mentioned beam splitter, the testing blind zone of beam splitter has been arranged on the inside of beam splitter, and can test real point
Propping up the fault of optical fiber, there is the problem of blind area, improves passive optical network PON network in the test solving beam splitter
The accuracy of fault location.
In the present embodiment, this optical fiber is naked fibre, such that it is able to the volume of minimizing dish fibre structure, saves space.
In the present embodiment, the radius of this dish fibre structure 14 is more than the minimum bending radius of this optical fiber.This dish fibre structure 14
Fiber lengths determined by splitting ratio and/or the optical fiber interface type of beam splitter.Wherein, optical fiber interface type includes:
PC (Physical Contact) interface and APC (Angled Physical Contact) interface, this dish fibre structure 14
Fiber lengths scope is 10m to 1km.
In the present embodiment, additionally providing a kind of test device, including housing, this enclosure interior includes: beam splitter and
Dish fibre structure；
The first kind outfan of this beam splitter is connected with one end of this dish fibre structure, the other end of this dish fibre structure and this housing
On Equations of The Second Kind outfan connect.
By above-mentioned test device, the testing blind zone of test device has been arranged on the inside of beam splitter, and can test very
The fault of R-branch optical fiber, there is the problem of blind area, improves passive optical network PON in the test solving beam splitter
The accuracy of network failure location.
In the present embodiment, additionally provide a kind of beam splitter method of testing, including:
One end of first outfan of beam splitter with dish fibre structure is connected, wherein, this dish fibre structure by fiber reel around being formed；
The other end of this dish fibre structure is set to the second outfan of this beam splitter, and this second outfan is for this beam splitter
Test output.
By above-mentioned method of testing, the testing blind zone in test has been arranged on the inside of beam splitter, and can test really
The fault of branch optical fiber, there is the problem of blind area, improves passive optical network PON net in the test solving beam splitter
The accuracy of network fault location.
Below in conjunction with preferred embodiment and embodiment, the present invention is described in detail.
This preferred embodiment overcome cannot detect in sidepiece administration of office OTDR scheme present in correlation technique beam splitter it
Fiber failure problem in a rear segment limit, it is provided that the device of a kind of beam splitter that can evade OTDR testing blind zone.
The device of the beam splitter of this preferred embodiment includes with lower module:
Ordinary beamsplitter, multiple dish are fine；
Also include: multiple outfans of ordinary beamsplitter and these dish fibres are coupled together.
The optical fiber of piece 10m a to 1km of series connection on each outfan of ordinary beamsplitter, is combined into and evades OTDR survey
The beam splitter of examination blind area.So OTDR testing blind zone is just being confined to inside beam splitter, and OTDR just can test
The fault of real branch optical fiber.
This preferred embodiment evades OTDR measuring technology blind area after beam splitter, has reached enhancing OTDR and has tested effect,
Save troubleshooting time, improve efficiency
Fig. 2 is beam splitter hardware module schematic diagram according to the preferred embodiment of the invention, as in figure 2 it is shown, include:
Shell, ordinary beamsplitter, dish is fine.
Fig. 3 is the structural representation that dish is fine according to the preferred embodiment of the invention, as it is shown on figure 3, dish fibre uses naked fine dish
Around forming, dish fibre diameter is more than the minimum bending radius of optical fiber.Length 10m～1km, dish fibre length is according to beam splitter
Splitting ratio, the joint of beam splitter is PC or APC determines, it is preferable that use 200m.Dish fibre quantity is equal to
The port number of beam splitter.
The input terminal of common light splitting beam splitter can be evaded the input of beam splitter of OTDR testing blind zone as this.
By N number of outfan of beam splitter and being welded together of dish fibre one end, the other end of dish fibre can be evaded as this
The outfan of the beam splitter of OTDR testing blind zone.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Calculating device to realize, they can concentrate on single calculating device, or be distributed in multiple calculating device and formed
Network on, alternatively, they can realize, it is thus possible to by them with calculating the executable program code of device
Storage is performed by calculating device in the storage device, and in some cases, can hold with the order being different from herein
Step shown or described by row, or they are fabricated to respectively each integrated circuit modules, or by many in them
Individual module or step are fabricated to single integrated circuit module and realize.So, the present invention is not restricted to any specific hardware
Combine with software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the technology of this area
For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made is any
Amendment, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a beam splitter, it is characterised in that including: the first outfan, dish fibre structure, the second outfan；
Described first outfan is connected with one end of described dish fibre structure, wherein, described dish fibre structure by fiber reel around
Formed；
The other end of described dish fibre structure is set to the second outfan, and described second outfan is for the test of beam splitter
Output.
Beam splitter the most according to claim 1, it is characterised in that described optical fiber is naked fibre.
Beam splitter the most according to claim 1, it is characterised in that the radius of described dish fibre structure is more than described optical fiber
Minimum bending radius.
Beam splitter the most according to claim 1, it is characterised in that the fiber lengths of described dish fibre structure is by beam splitter
Splitting ratio and/or optical fiber interface type determine.
Beam splitter the most according to any one of claim 1 to 4, it is characterised in that the optical fiber of described dish fibre structure is long
Degree scope is 10m to 1km.
6. a test device, it is characterised in that including: housing, this enclosure interior includes: beam splitter and dish fibre structure；
The first kind outfan of described beam splitter is connected with one end of described dish fibre structure, another of described dish fibre structure
End is connected with the Equations of The Second Kind outfan on described housing.
Test device the most according to claim 6, it is characterised in that described optical fiber is naked fibre.
8. according to the test device according to any one of claim 6 to 7, it is characterised in that the fiber lengths that described dish is fine
Scope is 10m to 1km.
9. a beam splitter method of testing, it is characterised in that including:
Being connected one end of first outfan of beam splitter with dish fibre structure, wherein, described dish fibre structure is by fiber reel
Around formation；
The other end of described dish fibre structure is set to the second outfan of described beam splitter, and described second outfan is used for
The test output of described beam splitter.
Method the most according to claim 9, it is characterised in that the fiber lengths scope of described dish fibre structure is 10m
To 1km.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310433.1A CN106301545A (en) | 2015-06-08 | 2015-06-08 | Beam splitter, test device and method of testing |
| PCT/CN2016/076530 WO2016197647A1 (en) | 2015-06-08 | 2016-03-16 | Optical splitter, test apparatus and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310433.1A CN106301545A (en) | 2015-06-08 | 2015-06-08 | Beam splitter, test device and method of testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106301545A true CN106301545A (en) | 2017-01-04 |
Family
ID=57504601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510310433.1A Withdrawn CN106301545A (en) | 2015-06-08 | 2015-06-08 | Beam splitter, test device and method of testing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106301545A (en) |
| WO (1) | WO2016197647A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663072A (en) * | 2017-03-29 | 2018-10-16 | 昆山金鸣光电科技有限公司 | Fiber switch junction sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145160U (en) * | 2011-05-25 | 2012-02-15 | 3M创新有限公司 | Optical time domain reflectometer |
| CN203896351U (en) * | 2014-06-05 | 2014-10-22 | 国家电网公司 | Optic fiber test apparatus |
| CN104410448A (en) * | 2014-12-04 | 2015-03-11 | 国家电网公司 | Enhanced auxiliary tail fiber device for assisting OTDR (Optical Time Domain Reflectometer) |
-
2015
- 2015-06-08 CN CN201510310433.1A patent/CN106301545A/en not_active Withdrawn
-
2016
- 2016-03-16 WO PCT/CN2016/076530 patent/WO2016197647A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145160U (en) * | 2011-05-25 | 2012-02-15 | 3M创新有限公司 | Optical time domain reflectometer |
| CN203896351U (en) * | 2014-06-05 | 2014-10-22 | 国家电网公司 | Optic fiber test apparatus |
| CN104410448A (en) * | 2014-12-04 | 2015-03-11 | 国家电网公司 | Enhanced auxiliary tail fiber device for assisting OTDR (Optical Time Domain Reflectometer) |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016197647A1 (en) | 2016-12-15 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170104 |
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| WW01 | Invention patent application withdrawn after publication |