CN1900672A - Optical fiber concentricity detecting method - Google Patents

Optical fiber concentricity detecting method Download PDF

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Publication number
CN1900672A
CN1900672A CNA2005100847663A CN200510084766A CN1900672A CN 1900672 A CN1900672 A CN 1900672A CN A2005100847663 A CNA2005100847663 A CN A2005100847663A CN 200510084766 A CN200510084766 A CN 200510084766A CN 1900672 A CN1900672 A CN 1900672A
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China
Prior art keywords
optical fiber
concentricity
detecting method
optical
degree
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CNA2005100847663A
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CN100520336C (en
Inventor
张世津
田章鸿
何俊庆
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Taida Electronic Industry Co Ltd
Delta Optoelectronics Inc
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Delta Optoelectronics Inc
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Publication of CN100520336C publication Critical patent/CN100520336C/en
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  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

The test method includes steps: inserting an optical fiber to be tested to positioning bush, another end is connected to an optical power detector to obtain value of optical power; then, after rotating the optical fiber to a given angle, inserting the optical fiber to be tested to positioning bush again to obtain another value of optical power; repeating number of time of operations above; analyzing values of optical power so as to obtain concentricity of optical fiber.

Description

Optical fiber concentricity detecting method
Technical field
The invention relates to a kind of optical fiber concentricity detecting method, particularly about a kind of detection method of utilizing the fine concentricity of mode Direct-detection Optical of Analysis of optical power.
Background technology
Optical fiber is a kind of wire rod that utilizes light as conductive medium, because its loss can avoid transmitting signals the time generally is used on the field of information transmission at present, and grid line etc. for example.
The optical fiber of conventional art please refer to shown in Figure 1; this figure is the diagrammatic cross-section of optical fiber; optical fiber 1 is made up of a fiber cores 10, a clad 12, a filler district 13 and an outer shell 14; fiber cores 10 is coated by clad 12; therebetween can be so that light produces total reflection; make the light can be in optical fiber after the front-reflection constantly; be delivered to the other end from an end; and among whole clad 12 is fixed in an outer shell 14 by a filler district 13; outer shell 14 as protection fiber cores 10 purposes, damages because of bending, fracture etc. to avoid fiber cores 10 usually.
But, the optical fiber 1 of conventional art is when making, may be because the factor of manufacture craft, causing fiber cores 10 is not the center that is positioned at optical fiber 1, for example, please refer to shown in Figure 2, if the clad 12 of optical fiber 1 is when engaging with outer shell 14 fillers, may produce fiber cores 10 is not the situation that is positioned at the center of optical fiber 1, if this moment, this optical fiber 1 was applied on the light signal transfer device (not shown), for example on the light transceiver (Transceiver), because skew is arranged with the concentricity of light signal transfer device (not shown), so produce a luminous power wearout region 100, that is to say that light has part therefore can't accept and loss, as shown in Figure 2, luminous power consume when making the light transmission, this may make the transmission of light signal therefore unstable, or even the disconnected problem of interrogating can occur.
Summary of the invention
In view of this, the invention provides a kind of optical fiber concentricity detecting method, whether concentricity that can measuring fiber closes in standard, the luminous power consume problem when avoiding light to transmit in advance.
Based on above-mentioned conception, the invention provides a kind of optical fiber concentricity detecting method, its step comprises: prepare a light source, light source is positioned at a side of a housing, the opposite side of housing has a location lining, an end clamping one leaded light section of the close light source in the positioning adapter; Then, an optical fiber to be detected is inserted into the end away from light source in the positioning adapter, the other end of optical fiber is connected to an optical power detector, obtains an optical power value; Central shaft with optical fiber is the center of circle, is inserted into the end away from light source in the positioning adapter behind spin fiber to a special angle again, obtains another optical power value; And the concentricity of analyzing described optical power value acquisition optical fiber.
According to above-mentioned conception, the residual optical-fiber segment that this leaded light Duan Weiyi internal diameter is identical with the internal diameter of this optical fiber.
According to above-mentioned conception, this optical fiber insert in this positioning adapter away from an end of this light source the time, the cross section of this optical fiber needs to paste neat with the cross section of this leaded light section.
According to above-mentioned conception, the special angle that optical fiber rotated is spent for being not more than 360, and preferably, this special angle is selected from following group: 45 degree, 90 degree, 135 are spent, 180 degree, 225 are spent, 270 degree and 315 are spent etc.
According to above-mentioned conception, the step of rotating this optical fiber to one special angle can repeat to implement, to obtain a plurality of optical power values, as the foundation of the concentricity of analyzing this optical fiber.
According to above-mentioned conception, analyze mode one radar map of described optical power value.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the optical fiber of conventional art.
Fig. 2 is the diagrammatic cross-section of optical fiber when its fiber cores skew of conventional art.
Schematic cross section when Fig. 3 inserts positioning adapter for optical fiber of the present invention.
Fig. 4 is the analysis result synoptic diagram of an embodiment of detection method of the present invention.
The primary clustering symbol description
1 optical fiber
10 fiber cores
100 luminous power wearout regions
12 clads
13 filler districts
14 outer shells
18 central shafts
20 housings
22 light sources
220 power supply lines
24 positioning adapters
26 leaded light sections
Embodiment
In order to describe optical fiber concentricity detecting method of the present invention in detail, please be simultaneously with reference to Fig. 1 and Fig. 3, its detailed step is as described below:
At first, prepare a device as shown in Figure 3, wherein this device is made up of a housing 20, a light source 22, a location lining 24 and 26 of leaded light sections, wherein, light source 22 is positioned at a side of housing 20, and this positioning adapter 24 is positioned at the opposite side of this housing 20, one end clamping, the one leaded light section 26 of the close light source 22 in the positioning adapter 24, leaded light section 26 can be the internal diameter residual optical-fiber segment identical with the internal diameter of optical fiber 1, and wherein, the concentricity of leaded light section 26 is in advance through checking compliant person.
Next, one optical fiber 1 to be detected is inserted into the end away from light source 22 in the positioning adapter 24, the other end of optical fiber 1 then is connected to a detecting device (not shown), for example, detecting device described in this embodiment can be an optical power detector, and the light that light source 20 is sent is through leaded light section 26, by the transmission of optical fiber 1, optical power detector can obtain an optical power value again; Wherein, optical fiber 1 insert in the positioning adapter 24 away from an end of light source 22 time, the cross section of optical fiber 1 needs smooth, and should paste together with the smooth cross section of leaded light section 26, avoiding the joint leadkage of light from both, and causes the problem of optical power down.
Next, be the center of circle with the central shaft 18 of optical fiber 1, behind spin fiber 1 to one special angle, be inserted into the end in the positioning adapter 24 again away from light source 22, optical power detector can obtain another optical power value; This step can repeat whenever to carry out once for several times, in the time of promptly can obtaining optical fiber 1 and when this special angle, insert in the positioning adapter 24, and the optical power value that optical power detector obtained; With this step is example, this case provides an in fact mode of experiment, optical fiber 1 can rotate to 45 degree, 90 degree, 135 degree, 180 degree, 225 degree, 270 degree and 315 degree places in regular turn after previous step is finished, note the optical power value that is obtained by optical power detector respectively again.
At last, analyze special angle down the value of the above-mentioned optical power value that obtains with respect to rotation, to obtain the concentricity of optical fiber 1, preferably, can radar map as the means of analysis; With above-mentioned experiment, can be with optical fiber 1 at 0 degree, 45 degree, 90 degree, 135 degree, 180 degree, 225 degree, 270 degree are spent the optical power value that places obtain respectively with 315, be recorded in the radar map in the mode of special angle with respect to optical power value, please refer to shown in Figure 4, as seen from the figure, the optical power value of the luminous power that this optical fiber 1 is received when 225 spend when being positioned at other angle, the situation that off-center point is all arranged when as seen the fiber cores 10 of this optical fiber 1 is outside rotating to 225 degree, if but the degree that departs from still can be within the acceptable scope, then this optical fiber 1 is still in operable scope, optimum condition then is that this optical fiber 1 is no matter under any angle state, its optical power value should be identical, the concentricity of promptly representing optical fiber 1 reaches best state, with this result, can judge promptly whether the concentricity of this optical fiber satisfies the demands.
In addition, more than be with optical fiber 1 rotate to 45 the degree, 90 the degree, 135 the degree, 180 the degree, 225 the degree, 270 the degree with 315 degree places be example, foundation as the concentricity of analyzing this optical fiber 1, but not as limit, can be according to demand, with optical fiber 1 rotate to arbitrary less than 360 degree special angle places and capture its optical power value, as the foundation of the concentricity of analyzing optical fiber 1.
In addition, the optical power detector in the foregoing description can also be replaced by the luminance brightness detecting device, and a plurality of brightness values via the luminance brightness detecting device is obtained can also can also obtain the concentricity of optical fiber 1 by after the analysis of radar map.
In sum, the invention provides the method for concentricity that can the Direct-detection Optical fibre, not only whether the concentricity of detection fiber closes in standard in advance, to avoid when optical fiber is used for light signal transfer device (not shown), produce luminous power consume problem because of its concentricity is not good, make the transmission of light signal therefore unstable, or even the situation of disconnected news can appear; Simultaneously, the present invention only uses a particular tool, cooperates for example optical power detector, promptly can carry out, and visible the present invention also has simple and easy and effect cheaply.
The above only is the preferred embodiments of the present invention, and the foregoing description only is used for illustrating but not in order to limit the present invention, category of the present invention is defined by claims.All according to equalization variation and modification that the present invention did, all should belong to covering scope of the present invention.

Claims (10)

1, a kind of optical fiber concentricity detecting method, its step comprises:
Prepare a light source, this light source is positioned at a side of a housing, and the opposite side of this housing has a location lining, an end clamping one leaded light section near this light source in this positioning adapter;
One optical fiber to be detected is inserted into the end away from this light source in this positioning adapter, and the other end of this optical fiber is connected to a detecting device, obtains a detected value;
Central shaft with this optical fiber is the center of circle, rotates the end away from this light source that is inserted into again behind this optical fiber to one special angle in this positioning adapter, obtains another detected value; And
Analyze described detected value to obtain the concentricity of this optical fiber.
2, optical fiber concentricity detecting method according to claim 1 is characterized in that, this leaded light Duan Weiyi residual optical-fiber segment.
3, optical fiber concentricity detecting method according to claim 2 is characterized in that, the internal diameter of this residual optical-fiber segment is identical with the internal diameter of this optical fiber.
4, optical fiber concentricity detecting method according to claim 1 is characterized in that, this optical fiber insert in this positioning adapter away from an end of this light source the time, the cross section of this optical fiber needs to paste neat with the cross section of this leaded light section.
5, optical fiber concentricity detecting method according to claim 1 is characterized in that, this special angle is for being not more than 360 degree.
6, optical fiber concentricity detecting method according to claim 4 is characterized in that, this special angle is selected from following group: 45 degree, 90 degree, 135 are spent, 180 degree, 225 are spent, 270 degree and 315 are spent etc.
7, optical fiber concentricity detecting method according to claim 1 is characterized in that, rotates this optical fiber to the step of this special angle and can repeat to implement, to obtain a plurality of detected values, as the foundation of the concentricity of analyzing this optical fiber.
8, optical fiber concentricity detecting method according to claim 1 is characterized in that, analyzes mode one radar map of described detected value.
9, optical fiber concentricity detecting method according to claim 1 is characterized in that, this detecting device is an optical power detector, and described detected value is respectively a plurality of optical power values.
10, optical fiber concentricity detecting method according to claim 1 is characterized in that, this detecting device is a luminance brightness detecting device, and described detected value is respectively a plurality of brightness values.
CNB2005100847663A 2005-07-20 2005-07-20 Optical fiber concentricity detecting method Expired - Fee Related CN100520336C (en)

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CNB2005100847663A CN100520336C (en) 2005-07-20 2005-07-20 Optical fiber concentricity detecting method

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Application Number Priority Date Filing Date Title
CNB2005100847663A CN100520336C (en) 2005-07-20 2005-07-20 Optical fiber concentricity detecting method

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CN1900672A true CN1900672A (en) 2007-01-24
CN100520336C CN100520336C (en) 2009-07-29

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105698656A (en) * 2016-03-22 2016-06-22 苏州伽蓝致远电子科技股份有限公司 Testing tool for concentricity of fiber connector
CN106198565A (en) * 2016-08-30 2016-12-07 武汉睿芯特种光纤有限责任公司 A kind of method and device detecting doubly clad optical fiber holiday
CN107727362A (en) * 2017-09-27 2018-02-23 南京春辉科技实业有限公司 The detection means and its detection method of fibre bundle emergent light spot deviation value
CN113176636A (en) * 2021-05-06 2021-07-27 四川天邑康和通信股份有限公司 General type end face detects EC type optical fiber connector
CN113503814A (en) * 2021-07-06 2021-10-15 上海飞博激光科技有限公司 Centering detection device and detection method for middle arm of optical fiber bundle
CN116027227A (en) * 2023-03-30 2023-04-28 南方电网科学研究院有限责任公司 Transformer winding cushion block and transformer monitoring device with same

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105698656A (en) * 2016-03-22 2016-06-22 苏州伽蓝致远电子科技股份有限公司 Testing tool for concentricity of fiber connector
CN105698656B (en) * 2016-03-22 2018-07-24 苏州伽蓝致远电子科技股份有限公司 A kind of optical fiber connector concentricity test fixture
CN106198565A (en) * 2016-08-30 2016-12-07 武汉睿芯特种光纤有限责任公司 A kind of method and device detecting doubly clad optical fiber holiday
CN107727362A (en) * 2017-09-27 2018-02-23 南京春辉科技实业有限公司 The detection means and its detection method of fibre bundle emergent light spot deviation value
CN107727362B (en) * 2017-09-27 2023-10-31 南京春辉科技实业有限公司 Detection device and detection method for deviation value of emergent light spots of optical fiber bundle
CN113176636A (en) * 2021-05-06 2021-07-27 四川天邑康和通信股份有限公司 General type end face detects EC type optical fiber connector
CN113176636B (en) * 2021-05-06 2023-08-11 四川天邑康和通信股份有限公司 Universal type end face detection EC type optical fiber movable connector
CN113503814A (en) * 2021-07-06 2021-10-15 上海飞博激光科技有限公司 Centering detection device and detection method for middle arm of optical fiber bundle
CN116027227A (en) * 2023-03-30 2023-04-28 南方电网科学研究院有限责任公司 Transformer winding cushion block and transformer monitoring device with same
CN116027227B (en) * 2023-03-30 2023-08-29 南方电网科学研究院有限责任公司 Transformer winding cushion block and transformer monitoring device with same

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