CN102507149A - Fibre core loss measuring method and system of heterogeneous optical fiber fusion welding point - Google Patents
Fibre core loss measuring method and system of heterogeneous optical fiber fusion welding point Download PDFInfo
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Abstract
The invention relates to a fibre core loss measuring method and system of a heterogeneous optical fusion welding point. The loss measuring system mainly consists of two light sources and two optical power meters. The fibre core loss measuring method comprises the following steps of: respectively connecting the light source to one end of each of different types of optical fibres, respectively connecting the optical power meter to the other end of each of the different types of the optical fibres, and obtaining optical power values Ra and Rb when the two optical fibers are directly connected; keeping the connection between the optical fibre tips and the optical power meters unchanged and the output power of the light sources unchanged, respectively cutting off the two optical fibers from the middle parts and carrying out fusion welding in a crossed way, and reading numerical reading of the optical power meters again to obtain optical power values Ras and Rbs after crossed fusion welding; and obtaining the average loss: [(Ra+Rb)-(Ras+Rbs)]/2 at the heterogeneous optical fiber fusion welding point through calculating according to the measured data. The fibre core loss measuring method is simple and effective, and has high precision and active roles and can be used for effectively measuring and estimating the fusion welding loss of different types of optical fibres.
Description
Technical field
The present invention relates to the measuring method of a kind of fused fiber splice point fibre core loss (abbreviation splice loss, splice attenuation), relate in particular to the measurement of xenogenesis fused fiber splice point fibre core loss.
Background technology
We know that in various fibre systems such as light sensing, fiber laser, the splice loss, splice attenuation of optical fiber is an important factor that influences system performance.Accurately measure splice loss, splice attenuation and important effect is arranged for assessment and improvement fibre system performance.At present, can carry out through optical time domain reflectometer (OTDR) the detection of splice loss, splice attenuation, optical time domain reflectometer is through in optical fiber, transmitting light pulse, judging to observe the reflected light degree.Because not only there is reflection in light at the welded joint place, also has scattering and absorption etc., therefore, only confirm that through measuring the reflected light degree welded joint loss and real loss have than big-difference, measuring accuracy is also not high enough simultaneously.Realize also having in the splice loss, splice attenuation prior art through the loss assessment; It is through observing optical fiber from both direction; Through image recognition and variation and other parameters of analyzing the skew confirm covering and fibre core, distortion, size; Use these parameters to calculate the loss of estimating joint, this kind assessment result still has sizable difference with true welded joint loss.
Also can adopt the mode of blocking to measure, promptly earlier the optical power loss of a complete optical fiber measured, then this optical fiber is cut into two sections in the centre, and two breakpoints are carried out welding, through reading light power meter numerical value before and after the welding, thereby can calculate splice loss, splice attenuation.The above-mentioned two kinds of methods of its ratio of precision are higher, but its splice loss, splice attenuation that is only applicable to same kind optical fiber calculates.
The shortcoming of above-mentioned the whole bag of tricks is or only can carries out loss measurement to the mutual weld of optical fiber of the same race that it is not enough perhaps to measure estimated accuracy.And comprise in the development of fiber laser that in various fibre systems the welding between the optical fiber not of the same race often also needs accurately to measure its splice loss, splice attenuation.Among the application; Optical fiber behind our two kinds of fused fiber splices that technical parameter is incomplete same is defined as xenogenesis optical fiber; The big young pathbreaker of the splice loss, splice attenuation of xenogenesis optical fiber influences the performance of fibre system, especially crucial weld, therefore; How to obtain the splice loss, splice attenuation of xenogenesis optical fiber exactly, have important function and significance for the experiment and the exploitation of fibre system.
Summary of the invention
The present invention seeks to provides a kind of measuring method that can measure the loss of xenogenesis fused fiber splice point fibre core exactly for the deficiency that overcomes prior art.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of xenogenesis fused fiber splice point fibre core loss measurement method, it comprises the steps:
(a), choose two dissimilar optical fiber to be measured; End at two optical fiber connects light source respectively; The other end at two optical fiber connects light power meter respectively; Open light source and light power meter, read the light power meter reading, obtaining the luminous power numerical value of above-mentioned two optical fiber under direct-connected situation is Ra, Rb;
(b), keep optic fibre end constant with being connected of light source and light power meter, described two optical fiber are blocked, and the welding that intersects the xenogenesis optical fiber of two mixing of formation respectively from middle position;
(c), keep the optical output power of said two light sources constant, read the light power meter reading once more, the luminous power numerical value that obtains intersecting after the welding is Ras, Rbs;
(d), according to above-mentioned measurement data, the average loss that calculates xenogenesis fused fiber splice point fibre core is: [(Ra+Rb)-(Ras+Rbs)]/2.
Further, in the step (a), described two optical fiber of treating welding core refractive index, cladding index, core radius, cladding radius, cladding structure, doping condition, manufacturer and batch in one or more aspect incomplete same.
The optical signals semiconductor laser of said light source, fiber laser, solid state laser or gas laser produce.
To technique scheme in the enforcement further optimized; In the step (a); When in the described optical fiber promising one or two when being doubly clad optical fiber, also be respectively arranged with the covering power stripper (Cladding Power Stripper) that is used to increase measuring accuracy near the end points place in the both sides of this doubly clad optical fiber.
The present invention also provides a kind of xenogenesis fused fiber splice point fibre core loss measurement system that adopts above-mentioned measuring method, and it comprises
Light source, it has two, is connected to an end of two testing fibers, and described light source is used to produce the light signal of certain intensity;
Light power meter, it has two, is connected to the other end of two testing fibers, and described light power meter is used for the measuring light watt level;
Described light source keeps being fixedly connected with optical fiber before welding with after the welding with optical fiber, light power meter; It is constant that the output power of light source keeps; Through read respectively before the welding with welding after the reading of light power meter; Obtain two testing fibers form xenogenesis optical fiber after the luminous power under the direct-connected situation and two testing fiber weldings optical power value, to obtain the measured value of fused fiber splice point loss.
Optimally, described light source type is a kind of in semiconductor laser, fiber laser, solid state laser or the gas laser.
Described light power meter is a kind of in the light power meter of photoelectric probe and hot light probe type.
Further, when having one or two to be doubly clad optical fiber in the testing fiber, also be respectively arranged with the covering power stripper that is used to increase measuring accuracy near the end points place in the both sides of corresponding doubly clad optical fiber.
Because technique scheme utilization; The present invention compared with prior art has advantage: when needs detect the splice loss, splice attenuation of the following two kinds of xenogenesis optical fiber of a certain welding mode; Only need choose the optical fiber of two corresponding kinds; Connect test system building according to this method, read the direct-connected luminous power numerical value of these two optical fiber respectively, and then two optical fiber are blocked and intersect welding; Read the luminous power numerical value after the welding in the same way, so this weld loss just can by direct-connected luminous power with intersect that the numerical value of luminous power obtains through simple computation after the welding.This method is simply effective, and precision is high, and is applied widely, and different types of fused fiber splice loss of widespread use can be measured effectively and estimate that scientific experiment, engineering development and product manufacturing are all had positive effect.
Description of drawings
Accompanying drawing 2 blocks synoptic diagram among the present invention with two direct-connected optical fiber;
Accompanying drawing 4 is the xenogenesis fused fiber splice loss measurement user mode figure of system of the present invention.
Embodiment
To combine accompanying drawing that the preferred embodiment of the invention is elaborated below:
Xenogenesis fused fiber splice point fibre core loss measurement method of the present invention, it at first gets two dissimilar optical fiber, connects light source respectively at an end of two optical fiber, connects light power meter respectively at the other end of two optical fiber, promptly accomplishes building of test macro.In whole test process, keep optical fiber and light source be connected and optical fiber constant with being connected of light power meter, keep the optical power value the when optical output power of two light sources is constant at first to read two fiber direct connections simultaneously; Then two direct-connected optical fiber are blocked, thereby intersecting welding at the breakpoint place forms two xenogenesis optical fiber, reads luminous power numerical value this moment once more.Can calculate like this and obtain xenogenesis fused fiber splice point loss size.To combine Fig. 1 to Fig. 3 to introduce as follows in detail below:
Like Fig. 1; Choose two optical fiber A and B; These two optical fiber A, B core refractive index, cladding index, core radius, cladding radius, doping, manufacturer or batch in one side or many-side on slightly different, promptly optical fiber A, B are two dissimilar optical fiber.Like optical fiber A is the single-mode fiber of core diameter 5um, and optical fiber B is a core diameter 6.2um single-mode fiber; Perhaps optical fiber A is single cladded-fiber, and optical fiber B is a doubly clad optical fiber.In the present embodiment, the end of selecting optical fiber A, B to be positioned at the same side is connected with B with light source A respectively, keeps connecting, up to EOT.Light source A and light source B are respectively to optical fiber A, light signal that the B power input is stable, and light signal is transmitting in corresponding optical fiber.The other end of optical fiber A, B is connected with power meter A, B respectively, keeps connecting, equally up to EOT.Thereby can obtain the luminous power size after optical fiber and path loss, be called direct-connected optical power value among the application, be respectively Ra, Rb.
After measuring the direct-connected luminous power of optical fiber A, B; Keep optical fiber A, B two ends constant, turn-off light source (purpose is that laser leaks outside when preventing to cut off optical fiber, and during welding the observation image of the laser interference heat sealing machine of light source) with being connected of light source and power meter; Optical fiber A, B are blocked from the centre respectively; As shown in Figure 2, thus optical fiber A is divided into two sections of A1, A2, and optical fiber B is divided into two sections of B1, B2.
Respectively with the A1 section of optical fiber A and the B2 section welding mutually of optical fiber B; The A2 section welding mutually of the B1 section of optical fiber B and optical fiber A; As shown in Figure 3; Form two xenogenesis optical fiber after the welding, two fiber optic, light signal input parts before the welding are signal input parts of the xenogenesis optical fiber after the welding, and the light signal output end of two optical fiber before the welding is the xenogenesis fiber-optic signal output terminals after the welding.Open light source, this moment, light source A, B were to two kinds of xenogenesis optical fiber input optical signals, the Output optical power after the reading of power meter A, B can record welding, and this Output optical power is defined as the welding luminous power in this application, is respectively Ras, Rbs.
Can calculate by following formula for the weld loss after optical fiber A, the B welding:
[(Ra+Rb)-(Ras+Rbs)]/2。
The concrete analysis principle is following:
At first set:
The optical output power of light source A is Pa, and the optical output power of light source B is Pb;
Preceding half section A1 fibre core loss of optical fiber A is Loss1, comprises the junction loss of light source A and optical fiber A1, the loss of the preceding half section A1 of optical fiber A;
The loss of second half section A2 fibre core is Loss2, comprises the junction loss of loss, optical fiber A2 and the power meter A of optical fiber A second half section A2;
Preceding half section B1 fibre core loss of optical fiber B is Loss3, comprises the junction loss of light source B and optical fiber B1, the loss of the preceding half section B1 of optical fiber B;
The loss of second half section B2 fibre core is Loss4, comprises the junction loss of loss, optical fiber B2 and the power meter B of optical fiber B second half section B2;
The splice loss, splice attenuation of the preceding half section A1 of optical fiber A and the later half B2 of optical fiber B is Loss12;
The splice loss, splice attenuation of the preceding half section B1 of optical fiber B and the second half section A2 of optical fiber A is Loss21;
In the time of two fiber direct connections, the reading of two power meters is respectively Ra, Rb;
Two optical fiber block after the intersection welding, and the reading of two power meters is respectively Ras, Rbs;
We can know according to the structure of light path, and in two fiber direct connections, the luminous power that power meter records is exactly that the power of light source deducts the fibre loss in the light path, just:
Ra＝Pa-Loss1-Loss2 (1)
Rb＝Pb-Loss3-Loss4 (2)
When two optical fiber block and intersect after the welding, the power that two power meters record is exactly that fibre loss on the new light path adds the welded joint loss, just:
Ras＝Pb-Loss3-Loss2-Loss21；(3)
Rbs＝Pa-Loss1-Loss4-Loss12；(4)
Through joint account is is simply added and subtracted in formula (1), (2), (3), (4), can obtain:
(Ra+Rb)-(Ras+Rbs)＝Loss12+Loss21；
Because the asymmetry of the joint of two xenogenesis optical fiber, generally speaking Loss12 ≠ Loss21.Therefore we are with the mean value of Loss12 and the Loss21 loss estimated value as this point, that is:
Splice loss, splice attenuation=[(R1+R2)-(R1s+R2s)]/2, promptly for the xenogenesis fused fiber splice, its welded joint loss size is that two direct-connected fiber optic, light power sums deduct two xenogenesis optical fiber and intersect the average of difference after the welding luminous power sums.
Therefore, the splice loss, splice attenuation of xenogenesis optical fiber is measured, we are through above-mentioned steps, only need read direct-connected light power meter reading and the welding before the welding after the light power meter reading can obtain.The ingenious part of this method is: a plurality of loss factors such as light source and optical fiber, Optical Fiber Transmission, optical fiber and light power meter have all been carried out merger, need not measure their actual numerical value, but deduct these losses through certain measuring method.Behind these loss deductions, improved fusing point loss measurement result's precision.The inventive method succinctly is easy to realize, and in the process of measuring, and do not change being connected of two optical fiber and light source and power meter, do not change the output power of light source, further guaranteed the stability and the reliability of measurement result.
When having one of which or two all to be doubly clad optical fiber in above-mentioned two optical fiber; Corresponding doubly clad optical fiber both end sides also is connected with covering power stripper (Cladding Power Stripper) respectively; Described covering power isolator principle of work is earlier the polymkeric substance surrounding layer of doubly clad optical fiber to be removed, and then with applying or wrap up between the fiber region of high refractive index polymer to the exposure inner cladding.The setting of covering power stripper can guarantee the light signal of fibre core still in the fibre core transmission, and simultaneously, the light signal in the fibre cladding can diffuse in the high index of refraction coat and distinguish, thereby attenuate largely through in the covering power stripper.The present invention can remove the residual light power in the fibre cladding through covering power stripper is set, and what guarantee test is the luminous power in the optical fiber core diameter, has so just improved the measuring accuracy of doubly clad optical fiber fibre core splice loss, splice attenuation.Except that above-mentioned covering power stripper, the splice loss, splice attenuation method of testing of others and above-mentioned single cladded-fiber is identical.
The present invention also provides a kind of measuring system that said method carries out the loss of xenogenesis fused fiber splice point fibre core of using, and is as shown in Figure 4, and it comprises two light sources 1, two light power meters 2, and each light source 1 is one group of use that combines with a light power meter 2.Light source 1 is used for producing and to the optical fiber input optical signal, light power meter 2 is used to receive the luminous power size of measurement after Optical Fiber Transmission.Measuring system of the present invention also selectively is provided with double clad stripper 3, and the quantity of double clad stripper 3 also depends on testing fiber.As there being one to be doubly clad optical fiber in the testing fiber, need 2 covering power strippers so; If two optical fiber all are doubly clad optical fibers, then need 4 covering power strippers altogether.If two optical fiber all are single cladded-fibers, then do not need covering power stripper.
It is the covering residual light power of removing under the double clad situation in the optical fiber that double clad stripper 3 is mainly used at testing fiber, and it is arranged on the both sides of doubly clad optical fiber to be measured, respectively in the position near each light source generator 1 outgoing side and light power meter 2 input sides.
Wherein, light source 1 critical piece can be realized by semiconductor laser, fiber laser, solid state laser, gas laser.Light power meter 2 can be selected the light power meter of forms such as semiconductor probe, hot light probe.
Through adopting measuring method of the present invention and measuring system; Can realize the fibre core loss of the related xenogenesis optical fiber fusing point of optical system is widely measured; Measurement calculated value through the weld loss; Can provide with reference to appreciation information welder and fusion joining process, help the optimization of fusion joining process, the optimization that optical fiber is selected and the optimization of cutting welder.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. xenogenesis fused fiber splice point fibre core loss measurement method, it is characterized in that: it comprises the steps:
(a), choose two dissimilar optical fiber to be measured; End at two optical fiber connects light source respectively; The other end at two optical fiber connects light power meter respectively; Open light source and light power meter, read the light power meter reading, obtaining the luminous power numerical value of above-mentioned two optical fiber under direct-connected situation is Ra, Rb;
(b), keep optic fibre end constant with being connected of light source and light power meter, described two optical fiber are blocked, and the welding that intersects the xenogenesis optical fiber of two mixing of formation respectively from middle position;
(c), keep the optical output power of said two light sources constant, read the light power meter reading once more, the luminous power numerical value that obtains intersecting after the welding is Ras, Rbs;
(d), according to above-mentioned measurement data, the average loss that calculates xenogenesis fused fiber splice point fibre core is: [(Ra+Rb)-(Ras+Rbs)]/2.
2. xenogenesis fused fiber splice point fibre core loss measurement method according to claim 1; It is characterized in that: in the step (a), described two optical fiber to be measured core refractive index, cladding index, core radius, cladding radius, cladding structure, doping condition, manufacturer, batch in one or more aspect incomplete same.
3. xenogenesis fused fiber splice point fibre core loss measurement method according to claim 1 and 2 is characterized in that: the optical signals semiconductor laser of said light source, fiber laser, solid state laser or gas laser produce.
4. xenogenesis fused fiber splice point fibre core loss measurement method according to claim 1 and 2; It is characterized in that: in the step (a); When having one or two to be doubly clad optical fiber in the described optical fiber, also be respectively arranged with the covering power stripper that is used to increase measuring accuracy near the end points place in the both sides of this doubly clad optical fiber.
5. measuring system that adopts the described xenogenesis fused fiber splice point of claim 1 fibre core loss measurement method, it is characterized in that: it comprises
Light source, it has two, is connected to an end of two testing fibers, and described light source is used to produce the light signal of certain intensity;
Light power meter, it has two, is connected to the other end of two testing fibers, and described light power meter is used for the measuring light watt level;
Described light source keeps being fixedly connected with optical fiber before welding with after the welding with optical fiber, light power meter; Through read respectively before the welding with welding after the reading of light power meter; Obtain the optical power value of two testing fibers behind luminous power under the direct-connected situation and intersection welding formation xenogenesis optical fiber, to obtain the measured value of fused fiber splice point fibre core loss.
6. xenogenesis fused fiber splice point fibre core loss measurement according to claim 5 system is characterized in that: described light source type is a kind of in semiconductor laser, fiber laser, solid state laser or the gas laser.
7. xenogenesis fused fiber splice point fibre core loss measurement according to claim 5 system is characterized in that: described light power meter is a kind of in the light power meter of photoelectric probe or hot light probe type.
8. xenogenesis fused fiber splice point fibre core loss measurement according to claim 5 system; It is characterized in that: when having one or two to be doubly clad optical fiber in the testing fiber, also be respectively arranged with the covering power stripper that is used to increase measuring accuracy near the end points place in the both sides of corresponding doubly clad optical fiber.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674483A (en) * | 2013-12-13 | 2014-03-26 | 广东高聚激光有限公司 | Evaluating device and method of high-power optical fiber fusion welding point |
| CN104316294A (en) * | 2014-10-22 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | Optical fiber fusion point loss test device and method based on leakage light detection |
| CN104764590A (en) * | 2015-03-10 | 2015-07-08 | 北京航空航天大学 | High-accuracy optical fiber attenuation measuring method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784142A (en) * | 1993-06-28 | 1995-03-31 | Furukawa Electric Co Ltd:The | Optical fiber fusion splicing method |
| US6464410B1 (en) * | 2000-06-14 | 2002-10-15 | Ciena Corporation | Attenuation splice, system and method therefor using estimation algorithm and closed loop intelligent control |
| CN101793600A (en) * | 2010-04-15 | 2010-08-04 | 上海交通大学 | Measuring device and method of optical fibre transmission loss factor |
| CN102169209A (en) * | 2011-05-19 | 2011-08-31 | 北京工业大学 | Method for low loss welding and end face treatment of photonic crystal optical fiber |
| CN202255844U (en) * | 2011-10-19 | 2012-05-30 | 苏州华必大激光有限公司 | Fiber core loss measuring system for dissimilar optical fiber fusion welding point |
-
2011
- 2011-10-19 CN CN2011103179151A patent/CN102507149A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784142A (en) * | 1993-06-28 | 1995-03-31 | Furukawa Electric Co Ltd:The | Optical fiber fusion splicing method |
| US6464410B1 (en) * | 2000-06-14 | 2002-10-15 | Ciena Corporation | Attenuation splice, system and method therefor using estimation algorithm and closed loop intelligent control |
| CN101793600A (en) * | 2010-04-15 | 2010-08-04 | 上海交通大学 | Measuring device and method of optical fibre transmission loss factor |
| CN102169209A (en) * | 2011-05-19 | 2011-08-31 | 北京工业大学 | Method for low loss welding and end face treatment of photonic crystal optical fiber |
| CN202255844U (en) * | 2011-10-19 | 2012-05-30 | 苏州华必大激光有限公司 | Fiber core loss measuring system for dissimilar optical fiber fusion welding point |
Non-Patent Citations (1)
| Title |
|---|
| 李伟 等: "单模光纤的熔接损耗与测量", 《光通信技术》 * |
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| CN104316294A (en) * | 2014-10-22 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | Optical fiber fusion point loss test device and method based on leakage light detection |
| CN104764590A (en) * | 2015-03-10 | 2015-07-08 | 北京航空航天大学 | High-accuracy optical fiber attenuation measuring method |
| CN105222993A (en) * | 2015-09-24 | 2016-01-06 | 哈尔滨工业大学 | A kind of assay method of large core fiber Transmission loss |
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