CN105785503A - Preparation device of annularly distributed multi-core optical fiber probe and preparation method of optical fiber probe - Google Patents
Preparation device of annularly distributed multi-core optical fiber probe and preparation method of optical fiber probe Download PDFInfo
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- CN105785503A CN105785503A CN201610265809.6A CN201610265809A CN105785503A CN 105785503 A CN105785503 A CN 105785503A CN 201610265809 A CN201610265809 A CN 201610265809A CN 105785503 A CN105785503 A CN 105785503A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 85
- 239000000523 sample Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 48
- 239000010453 quartz Substances 0.000 claims abstract description 68
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims description 103
- 238000005520 cutting process Methods 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 239000003708 ampul Substances 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000009828 non-uniform distribution Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02042—Multicore optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
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- Optics & Photonics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention belongs to the optical fiber technology field, in particular relates to a preparation device mainly for preparing an annularly distributed multi-core optical fiber probe and a preparation method of the optical fiber probe. The preparation device of the annularly distributed multi-core optical fiber probe comprises a capillary tube installing support, a capillary tube installing supporting sheet is arranged in the center of the capillary tube installing support, and the annular scale division sheets are embedded in the two end faces of the capillary tube installing support respectively. The two ends of the capillary tube installing support are equipped with two three-dimensional displacement benches respectively, each three-dimensional displacement bench is equipped with an optical fiber clamp, and a CCD camera is arranged at one side of the capillary tube installing support and is adjusted to exactly face the end face of a quartz capillary tube installed in the center of the capillary tube installing supporting sheet. According to the present invention, the conventional optical fiber and quartz capillary tube are utilized to prepare the annularly distributed multi-core optical fiber probe, the preparation cycle is short, the manufacturing cost is low, and the repetition rate is high.
Description
Technical field
The invention belongs to technical field of optical fiber, particularly to preparation facilities and the preparation method of fibre-optical probe of a kind of a kind of ring-shaped distributed multi-core fiber probe mainly for the preparation of ring-shaped distributed multi-core fiber probe.
Background technology
The thread waveguide with good guide-lighting ability that optical fiber is usually drawn by quartzy or special plastics.Conventional optical fiber has three-decker, is followed successively by fibre core, covering, coat from inside to outside.Wherein the refractive index of fibre core is more than covering, such that it is able to light is strapped in fibre core.Coat is generally served as by materials such as acrylate, silicone rubber and nylon, acts protective effect such as preventing contaminated, the increase and decrease optical fiber toughness of optical fiber.Along with the development of optical fiber technology, optical fiber except occupying critical role in traditional communication field, and optical fiber sensing technology also obtains tremendous development and extensive use, and various Fibre Optical Sensors play an important role in different field.
Fibre-optical probe is to apply one very widely in numerous Fibre Optical Sensor.Fibre-optical probe using fiber end face as front end receiver optical signal, after connect tail optical fiber the optical signal received is transmitted.Multi-core fiber probe suffers from being widely applied in various fields.The mensuration of impurity component in liquids and gases, the measurement of body surface irregularity degree, the measurement etc. of micro-displacement.Especially, assist, with multi-core fiber probe, the study hotspot that in large-scale optical fiber solar spectral telescope, foresight speckle is become in astronomical field by astrology Transmission Fibers.
In multi-core fiber is popped one's head in, due to the distance between fibre core very near (be generally tens and arrive hundreds of micron), so often multiple fibre cores being integrated in an optical fiber form multi-core fiber.It is punch as requested on large preform rod that routine prepares the method for multi-core fiber, then inserts little prefabricated rods in hole and makes multicore prefabricated rods, finally carries out wire drawing, prepares multi-core fiber.But the manufacturing cost of large preform rod is significantly high, punch and the technology difficulty of the multicore prefabricated stick drawn wire assembled is all very big in prefabricated rods simultaneously.The amount of fibre that the method for prefabricated stick drawn wire is once prepared is very big, and generally in kilometer, but in multi-core fiber probe, only end portion needs multi-core fiber, and the arrangement of fibre core is required also different by different multicore probe.So, actually prepare multicore probe the demand of multi-core fiber is also little.It is costly that these all make to prepare multicore probe by the method for multicore prefabricated stick drawn wire.Additionally when actual signal processes, transmission energy in the multiple fibre core of multi-core fiber needs to be easily separated at probe tail end.Fibre core energy separation system is generally space optical path or the waveguiding structure utilizing pulse laser to write, and there is presently no the method for simple and fast and processes.
Summary of the invention
It is an object of the invention to provide a kind of low cost, utilize existing fiber small lot to prepare the preparation facilities of ring-shaped distributed multi-core fiber probe.The present invention also aims to the preparation method providing a kind of ring-shaped distributed multi-core fiber to pop one's head in
The object of the present invention is achieved like this:
The preparation facilities of a kind of ring-shaped distributed multi-core fiber probe, the preparation facilities of described ring-shaped distributed multi-core fiber probe includes: a capillary tube mounting bracket, and capillary tube mounting bracket central authorities have a capillary tube to install supporting spring；Capillary tube mounting bracket both ends of the surface are inlaid with an annular graduated disk respectively；The two ends of capillary tube mounting bracket have a three-D displacement platform respectively；Three-D displacement platform is provided with fiber clamp；There is a CCD camera side of capillary tube mounting bracket, regulates CCD camera just to being arranged on the end face that capillary tube installs the quartz capillary at supporting spring center.
Described capillary tube mounting bracket is the metal cylinder frame that a side, end face and centre hollow out, and all there is an alignment groove at both ends of the surface edge；It is the metal disk that thickness is 5 millimeters that a metal cylinder frame inwall slides that described capillary tube installs supporting spring, there is the through hole of an installation quartz capillary at center, the diameter of through hole is mated by the external diameter of prepared fibre-optical probe, and small hole center and metal cylinder dead in line.
Described annular graduated disk is closely embedded in the end face of capillary tube mounting bracket and rotates, and is locked by annular graduated disk by the lock-screw above capillary tube end face；Described annular graduated disk realizes calibration function by the calibration cutting on internal ring, and has an alignment groove on annular graduated disk；Calibration cutting on described annular graduated disk internal ring can be equally distributed, it is also possible to right and wrong are equally distributed.
Described three-dimensional regulation platform makes the optical fiber mounting groove of the fiber clamp being arranged on three-dimensional regulation platform move to the position overlapped with capillary tube mounting bracket axis.
Described CCD camera, by adjusting installation site, clearly observes two end faces of the quartz capillary being arranged in capillary tube mounting bracket from the side.
The preparation method of a kind of ring-shaped distributed multi-core fiber probe, comprises the following steps:
1) annular graduated disk is installed in the embedding groove of described capillary tube holder both ends of the surface, rotary annular graduated disk, make the alignment groove on annular graduated disk align with the groove that aligns of capillary tube mounting bracket end face edge；
2) capillary tube that the quartz capillary that length is 1～2 centimetre is installed to capillary tube mounting bracket is installed on the through hole of supporting spring；
3) 1 is used for the optical fiber preparing edge core through quartz capillary, respectively the two ends of optical fiber is installed on the fiber clamp of two the three-D displacement platforms being positioned at capillary tube mounting bracket two ends, and optical fiber is exceptionally straight；
4) optical fiber two ends are observed in the position of quartz capillary end face by the CCD camera being positioned at capillary tube mounting bracket side, and regulate two three-D displacement platforms, optical fiber two ends are made to be all located at the center of quartz capillary end face, the difference actuator of two three-D displacement platforms of locking；
5) being taken off from clamper optical fiber one end, and radially move to lentamente on annular graduated disk in corresponding indexing trough along capillary tube mounting bracket end face, in this process, optical fiber is in tensioned state all the time；
6) with seamless glue, this optic fibre end is fixed in the indexing trough of annular graduated disk；
7) repeat step 5), 6), the other end of this optical fiber is also secured in annular indexing trough corresponding to graduated disk；
8) repeat the above steps 3)～7), all the other are prepared during the optical fiber of edge core is sequentially inserted into quartz capillary and is fixed to the indexing trough of annular graduated disk of correspondence；
9) optical fiber for preparing central core removing covering is installed the quartz capillary on supporting spring through installing capillary tube, respectively the two ends of optical fiber are installed on the fiber clamp of two the three-D displacement platforms being positioned at capillary tube mounting bracket two ends, and by exceptionally straight for described optical fiber, now optical fiber is positioned on quartz capillary axis；
10) ultraviolet glue is coated onto one end of quartz capillary, treats that ultraviolet glue uses ultra-violet curing light irradiation 5～10 minutes after being full of described quartz capillary；
11) capillary tube mounting bracket, take off quartz capillary, and be connected one end heat-shrink tube pyrocondensation encapsulation with tail optical fiber at quartz capillary；
12) cut out probe tip face with wire cutting machine in the unencapsulated one end of quartz capillary, complete the preparation of ring-shaped distributed multi-core fiber probe；If the fibre-optical probe of preparation does not have central core, then omit step 9).
Quartz capillary internal diameter is 240～600 microns, and external diameter is 500～1000 microns, and endoporus is circular.
The ring-shaped distributed multi-core fiber probe of described preparation can have edge core and central core simultaneously, it is also possible to only has edge core.
The size of described central core can be identical with edge core, it is also possible to different.
Central core optical fiber and the spacing of edge core fibre that the ring-shaped distributed multi-core fiber having central core of described preparation is popped one's head in are between 0～30 micron；The edge core of the ring-shaped distributed multi-core fiber probe of described preparation can be equally distributed along quartz ampoule inwall, it is also possible to along quartz ampoule inwall non-uniform Distribution.
The beneficial effects of the present invention is:
1, utilizing existing fiber and quartz capillary to prepare ring-shaped distributed multi-core fiber probe, manufacturing cycle is short, cost of manufacture is low, repetitive rate is high.
2, same equipment is used can to prepare multiple ring-shaped distributed multi-core fiber probe conveniently and efficiently, such as four core ring-shaped distributed multi-core fiber probes, five core ring-shaped distributed multi-core fiber probes, eight core ring-shaped distributed multi-core fiber probes etc..
3, due to multiple fibre cores tail end be separate, it is not necessary to multi-core fiber pop one's head in each fibre core carry out energy separation, practical application is more convenient.
Accompanying drawing explanation
Fig. 1 is the preparation facilities structure chart of ring-shaped distributed multi-core fiber probe；
Fig. 2 is annular graduated disk structure chart；
Fig. 3 a is that the 17 core annulars with central core are uniformly distributed multi-core fiber sonde configuration schematic diagram；
Fig. 3 b is that the 9 core annulars with central core are uniformly distributed multi-core fiber sonde configuration schematic diagram；
Fig. 3 c is the 9 core annular non-uniform Distribution multi-core fiber sonde configuration schematic diagrams with central core；
Fig. 3 d is that 16 core annulars are uniformly distributed multi-core fiber sonde configuration schematic diagram；
The 7 core annulars that centered by Fig. 3 e, core is identical with edge core are uniformly distributed multi-core fiber sonde configuration schematic diagram.
Fig. 4 be basis of microscopic observation to the end face of the 17 core ring-shaped distributed multi-core fibers probes with central core of preparation.
Detailed description of the invention
Below in conjunction with accompanying drawing, invention is described further.
The multicore probe fibre core that the present invention prepares circularizes arrangement, and center probe can have fibre core, it is also possible to does not have fibre core.
The object of the present invention is achieved like this: the preparation facilities of a kind of ring-shaped distributed multi-core fiber probe is made up of 1, two three-D displacement platforms 2 of a capillary tube mounting bracket and a CCD camera 7.Wherein, the two ends of capillary tube mounting bracket are all inlaid with internal ring and are carved with the annular graduated disk 3 of calibration cutting 11.Turn slack adjuster 6 and can control the degree of tightness that annular graduated disk 3 is combined with capillary tube mounting bracket 1, and replaceable internal ring is carved with the annular graduated disk 3 of different calibration cutting 11.All having alignment groove 9 and alignment groove 10 on capillary tube mounting bracket 1 end face and annular graduated disk 3, when the groove 9 that aligns aligns with the groove 10 that aligns, the calibration cutting 11 of the annular graduated disk 3 being embedded in capillary tube mounting bracket 1 two ends is alignd one by one.Supporting spring 4 is installed equipped with a disc-shaped capillary tube in the centre of capillary tube mounting bracket 1.Capillary tube is installed supporting spring 4 and is in close contact with capillary tube mounting bracket 1 inwall and can slide axially along capillary tube mounting bracket 1.Capillary tube installs supporting spring 4 center has one to run through circular hole 8, and diameter is 500～1000 microns, in order to install the quartz capillary 12 of preparation probe.The three-D displacement platform 2 at capillary tube mounting bracket 1 two ends is provided with fiber clamp 5.The optical fiber mounting groove of two fiber clamps can be made to overlap with the axis of capillary tube mounting bracket 1 by regulating three-D displacement platform.By regulating CCD camera 7 it can clearly be observed that be arranged on capillary tube to install the situation of quartz capillary 12 both ends of the surface on supporting spring 4.
A kind of preparation method of ring-shaped distributed multi-core fiber probe, comprise the following steps: 1) annular graduated disk 3 is put in the embedding groove of capillary tube holder 1 both ends of the surface, rotary annular graduated disk 3, makes the alignment groove 10 on annular graduated disk 3 align with the groove 9 that aligns of capillary tube mounting bracket 1 end face edge.2) capillary tube that the quartz capillary 12 that length is 10～20 millimeters is installed to capillary tube mounting bracket 1 is installed on supporting spring 4.3) 1 is used for the optical fiber preparing edge core 13 through quartz capillary 12, respectively the two ends of optical fiber 13 is installed on the fiber clamp 5 of two three-D displacement platforms, and by exceptionally straight for described optical fiber.4) observe optical fiber 13 two ends in the position of quartz capillary 12 end face by CCD camera 7, regulate two three-dimensional displacement platforms 2 and make optical fiber 13 in quartz capillary 12 both ends of the surface all in end face center, the difference actuator of the three-dimensional displacement platform of locking two.5) being taken off from fibre holder 5 optical fiber 13 one end, and radially move in calibration cutting 11 lentamente along capillary tube mounting bracket 1 end face, in this process, optical fiber 13 is in tensioned state all the time.6) with seamless glue, this optical fiber 13 termination is fixed in calibration cutting 11.7) step 5 is repeated), the other end of this optical fiber 13 is fixed in the calibration cutting 11 of annular graduated disk 3 correspondence of capillary tube mounting bracket 1 other end.8) repeat the above steps 3)～7), the optical fiber 13 that all the other prepare edge core is sequentially inserted into quartz capillary 12, and is fixed in the calibration cutting 11 of correspondence.9) optical fiber 14 being used for preparing central core of covering will be removed along quartz capillary 12 axis through quartz capillary, the two ends of central optical fiber 14 are respectively installed on fiber clamp 5, and by exceptionally straight for central optical fiber 14, now central optical fiber 14 is positioned on quartz capillary 12 axis.10) ultraviolet glue 15 is coated onto one end of quartz capillary 12, treats that ultraviolet glue uses ultra-violet curing light irradiation 5～10 minutes after being full of quartz capillary 12.11) quartz capillary 12 is taken off, and in one end heat-shrink tube pyrocondensation encapsulation that quartz capillary 12 is connected with tail optical fiber.12) cut out probe tip face with wire cutting machine in one end that quartz capillary 12 is unencapsulated, complete the preparation of ring-shaped distributed multi-core fiber probe.If the fibre-optical probe prepared does not have central core, then omit step 9).
In conjunction with Fig. 1, Fig. 2, a kind of 17 core ring-shaped distributed multi-core fiber probe preparation facilitiess having central core, including: 3, capillary tube of 2, two annular graduated disks of 1, two three-D displacement platforms of capillary tube mounting bracket installs 4, two fiber clamps 5 of supporting spring and a CCD camera 7.
Wherein, capillary tube mounting bracket 1 two ends are inlaid with an internal ring respectively and are carved with the annular graduated disk 3 of 16 calibration cuttings 11.Annular graduated disk 3 external diameter 25 millimeters, internal diameter 14 millimeters.Each calibration cutting 11 is wide 200 microns, deep 1000 microns.Capillary tube mounting bracket 1 central authorities have one with capillary tube mounting bracket 1 inwall close contact and can slide axially capillary tube install supporting spring 4, capillary tube install supporting spring 4 diameter 18 millimeters, thickness is 0.5 millimeter, and through circular hole 8 diameter at center is 1.05 millimeters.
Such as Fig. 1, being positioned on the two three-dimensional displacement platforms 2 at capillary tube mounting bracket 1 two ends and be provided with fiber clamp 5, fiber clamp 5 can clamp the optical fiber that diameter is at 50～500 microns.The optical fiber mounting groove of two fiber clamps 5 can be made to overlap with the axis of capillary tube mounting bracket 1 by regulating three-D displacement platform 2.By regulating CCD camera 7 it can clearly be observed that be arranged on capillary tube to install the situation of quartz capillary 12 both ends of the surface on supporting spring 4.
Illustrate that the preparation of this detailed description of the invention has 17 core ring-shaped distributed multi-core fiber probes of central core with exemplary embodiment below.
Embodiment
The present embodiment preparation has 17 core ring-shaped distributed multi-core fiber probes of central core, specifically includes following steps:
1) the annular graduated disk 3 that internal ring is carved with 16 calibration cuttings 11 is installed to capillary tube mounting bracket 1 two ends, and makes its groove 10 being alignd on annular graduated disk 3 with the groove 9 that aligns on capillary tube mounting bracket 1 end face.
2) by length be 10 millimeters, the quartz capillary 12 of external diameter 1000 microns, internal diameter 480 microns inserts in the pipe perforation 8 that capillary tube installs supporting spring 4 center.
3) by a core diameter 50 microns, cladding outer diameter 55 microns, coat external diameter 65 microns optical fiber 13 be inserted through quartz capillary 12, the two ends of optical fiber 13 are respectively installed on the fiber clamp 5 on three-D displacement platform 2, and stretch optic fibre 13.
4) observe optical fiber 13 from the side in the position of quartz capillary 12 both ends of the surface by CCD camera 7, regulate two three-dimensional displacement platforms 2, make the center that optical fiber 13 is in quartz capillary 12 both ends of the surface.
5) optical fiber 13 one end is taken off from fiber clamp 5, and radially optical fiber 13 two ends are put into along capillary tube mounting bracket 1 end face in the calibration cutting 11 of annular graduated disk 3.In this process, optical fiber 13 remains tight state.
6) with seamless glue, optical fiber 13 is fixed in the calibration cutting 11 of annular graduated disk 3.
7) step 5 is repeated) and 6), the other end of optical fiber 13 is fixed in the corresponding calibration cutting 11 of annular graduated disk 3 of capillary tube mounting bracket 1 other end.
8) step 3 is repeated)～7), all the other 15 optical fiber 13 are sequentially passed through quartz capillary 12 and is fixed on annular graduated disk 3 in corresponding calibration cutting 11.
9) by core diameter be 320 microns, cladding outer diameter be that the central optical fiber 14 of 350 microns removes the axis of coat tailing edge quartz capillary 12 through quartz capillary 12, the two ends of central optical fiber 14 are respectively installed on fiber clamp 5, and by exceptionally straight for central optical fiber 14, now central optical fiber 14 is positioned on quartz capillary 12 axis.
10) ultraviolet glue 15 is coated onto one end of quartz capillary 12, treats that ultraviolet glue 15 uses ultra-violet curing light irradiation 5～10min after being full of quartz capillary 12.
11) take off quartz capillary 12, and be connected one end heat-shrink tube pyrocondensation encapsulation with tail optical fiber at quartz capillary 12.
12) cut out probe tip face with wire cutting machine in the unencapsulated one end of quartz capillary 12, complete the preparation of 17 core ring-shaped distributed multi-core fiber probes of central core.
The end face of the 17 core ring-shaped distributed multi-core fiber probes with central core of experiment preparation is as shown in Figure 4.
Claims (10)
1. the preparation facilities of ring-shaped distributed multi-core fiber probe, it is characterised in that: the preparation facilities of described ring-shaped distributed multi-core fiber probe includes: a capillary tube mounting bracket, and capillary tube mounting bracket central authorities have a capillary tube to install supporting spring；Capillary tube mounting bracket both ends of the surface are inlaid with an annular graduated disk respectively；The two ends of capillary tube mounting bracket have a three-D displacement platform respectively；Three-D displacement platform is provided with fiber clamp；There is a CCD camera side of capillary tube mounting bracket, regulates CCD camera just to being arranged on the end face that capillary tube installs the quartz capillary at supporting spring center.
2. the preparation facilities of ring-shaped distributed multi-core fiber according to claim 1 probe, it is characterised in that: described capillary tube mounting bracket is the metal cylinder frame that a side, end face and centre hollow out, and all there is an alignment groove at both ends of the surface edge；It is the metal disk that thickness is 5 millimeters that a metal cylinder frame inwall slides that described capillary tube installs supporting spring, there is the through hole of an installation quartz capillary at center, the diameter of through hole is mated by the external diameter of prepared fibre-optical probe, and small hole center and metal cylinder dead in line.
3. the preparation facilities of ring-shaped distributed multi-core fiber according to claim 1 probe, it is characterised in that: described annular graduated disk is closely embedded in the end face of capillary tube mounting bracket and rotates, and is locked by annular graduated disk by the lock-screw above capillary tube end face；Described annular graduated disk realizes calibration function by the calibration cutting on internal ring, and has an alignment groove on annular graduated disk；Calibration cutting on described annular graduated disk internal ring can be equally distributed, it is also possible to right and wrong are equally distributed.
4. the preparation facilities of ring-shaped distributed multi-core fiber according to claim 1 probe, it is characterised in that: described three-dimensional regulation platform makes the optical fiber mounting groove of the fiber clamp being arranged on three-dimensional regulation platform move to the position overlapped with capillary tube mounting bracket axis.
5. the preparation facilities of ring-shaped distributed multi-core fiber according to claim 1 probe, it is characterised in that: described CCD camera, by adjusting installation site, clearly observes two end faces of the quartz capillary being arranged in capillary tube mounting bracket from the side.
6. the preparation method of a ring-shaped distributed multi-core fiber probe, it is characterised in that comprise the following steps:
1) annular graduated disk is installed in the embedding groove of described capillary tube holder both ends of the surface, rotary annular graduated disk, make the alignment groove on annular graduated disk align with the groove that aligns of capillary tube mounting bracket end face edge；
2) capillary tube that the quartz capillary that length is 1～2 centimetre is installed to capillary tube mounting bracket is installed on the through hole of supporting spring；
3) 1 is used for the optical fiber preparing edge core through quartz capillary, respectively the two ends of optical fiber is installed on the fiber clamp of two the three-D displacement platforms being positioned at capillary tube mounting bracket two ends, and optical fiber is exceptionally straight；
4) optical fiber two ends are observed in the position of quartz capillary end face by the CCD camera being positioned at capillary tube mounting bracket side, and regulate two three-D displacement platforms, optical fiber two ends are made to be all located at the center of quartz capillary end face, the difference actuator of two three-D displacement platforms of locking；
5) being taken off from clamper optical fiber one end, and radially move to lentamente on annular graduated disk in corresponding indexing trough along capillary tube mounting bracket end face, in this process, optical fiber is in tensioned state all the time；
6) with seamless glue, this optic fibre end is fixed in the indexing trough of annular graduated disk；
7) repeat step 5), 6), the other end of this optical fiber is also secured in annular indexing trough corresponding to graduated disk；
8) repeat the above steps 3)～7), all the other are prepared during the optical fiber of edge core is sequentially inserted into quartz capillary and is fixed to the indexing trough of annular graduated disk of correspondence；
9) optical fiber for preparing central core removing covering is installed the quartz capillary on supporting spring through installing capillary tube, respectively the two ends of optical fiber are installed on the fiber clamp of two the three-D displacement platforms being positioned at capillary tube mounting bracket two ends, and by exceptionally straight for described optical fiber, now optical fiber is positioned on quartz capillary axis；
10) ultraviolet glue is coated onto one end of quartz capillary, treats that ultraviolet glue uses ultra-violet curing light irradiation 5～10 minutes after being full of described quartz capillary；
11) capillary tube mounting bracket, take off quartz capillary, and be connected one end heat-shrink tube pyrocondensation encapsulation with tail optical fiber at quartz capillary；
12) cut out probe tip face with wire cutting machine in the unencapsulated one end of quartz capillary, complete the preparation of ring-shaped distributed multi-core fiber probe；If the fibre-optical probe of preparation does not have central core, then omit step 9).
7. the preparation method of a kind of ring-shaped distributed multi-core fiber according to claim 6 probe, it is characterised in that described quartz capillary internal diameter is 240～600 microns, and external diameter is 500～1000 microns, endoporus is circular.
8. the preparation method of a kind of ring-shaped distributed multi-core fiber according to claim 6 probe, it is characterised in that: the ring-shaped distributed multi-core fiber probe of described preparation can have edge core and central core simultaneously, it is also possible to only has edge core.
9. the preparation method of a kind of ring-shaped distributed multi-core fiber according to claim 6 probe, it is characterised in that: the size of described central core can be identical with edge core, it is also possible to different.
10. the preparation method of a kind of ring-shaped distributed multi-core fiber according to claim 6 probe, it is characterised in that: central core optical fiber and the spacing of edge core fibre that the ring-shaped distributed multi-core fiber having central core of described preparation is popped one's head in are between 0～30 micron；The edge core of the ring-shaped distributed multi-core fiber probe of described preparation can be equally distributed along quartz ampoule inwall, it is also possible to along quartz ampoule inwall non-uniform Distribution.
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| CN201610265809.6A CN105785503B (en) | 2016-04-26 | 2016-04-26 | A kind of preparation method for the preparation facilities and fibre-optical probe that ring-shaped distributed multi-core fiber is popped one's head in |
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| CN201610265809.6A CN105785503B (en) | 2016-04-26 | 2016-04-26 | A kind of preparation method for the preparation facilities and fibre-optical probe that ring-shaped distributed multi-core fiber is popped one's head in |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040819A1 (en) * | 2016-08-31 | 2018-03-08 | 深圳英美达医疗技术有限公司 | Endoscope probe, endoscope, and method for manufacturing endoscope probe |
| WO2019228596A1 (en) * | 2018-05-28 | 2019-12-05 | Leoni Kabel Gmbh | Method for producing a preform for producing a multicore fibre and also a preform and a multicore fibre |
| CN113029214A (en) * | 2021-04-16 | 2021-06-25 | 中山大学 | Speckle sensing system based on multi-ring core optical fiber and speckle identification method |
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