CN117031640A - Polarization maintaining fiber connector and manufacturing method thereof - Google Patents
Polarization maintaining fiber connector and manufacturing method thereof Download PDFInfo
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- CN117031640A CN117031640A CN202311060595.5A CN202311060595A CN117031640A CN 117031640 A CN117031640 A CN 117031640A CN 202311060595 A CN202311060595 A CN 202311060595A CN 117031640 A CN117031640 A CN 117031640A
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- polarization maintaining
- optical fiber
- maintaining optical
- core insert
- fiber connector
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- 230000010287 polarization Effects 0.000 title claims abstract description 128
- 239000000835 fiber Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 107
- 239000003292 glue Substances 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 208000025174 PANDAS Diseases 0.000 claims abstract description 22
- 208000021155 Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infection Diseases 0.000 claims abstract description 22
- 240000004718 Panda Species 0.000 claims abstract description 22
- 235000016496 Panda oleosa Nutrition 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 19
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 17
- 238000007711 solidification Methods 0.000 claims abstract description 14
- 230000008023 solidification Effects 0.000 claims abstract description 14
- 238000011065 in-situ storage Methods 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims description 62
- 239000002184 metal Substances 0.000 claims description 29
- 238000013459 approach Methods 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 229920000178 Acrylic resin Polymers 0.000 claims description 2
- 229920003180 amino resin Polymers 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 229920006335 epoxy glue Polymers 0.000 claims 1
- 230000008033 biological extinction Effects 0.000 abstract description 10
- 241000282326 Felis catus Species 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000003822 epoxy resin Substances 0.000 description 18
- 229920000647 polyepoxide Polymers 0.000 description 18
- 230000008018 melting Effects 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 238000005498 polishing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3812—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres having polarisation-maintaining light guides
-
- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
- G02B6/3861—Adhesive bonding
-
- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3898—Tools, e.g. handheld; Tuning wrenches; Jigs used with connectors, e.g. for extracting, removing or inserting in a panel, for engaging or coupling connectors, for assembling or disassembling components within the connector, for applying clips to hold two connectors together or for crimping
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention provides a polarization maintaining optical fiber connector and a manufacturing method thereof, belongs to the technical field of optical fiber connectors, and aims to solve the technical problem that panda eyes are easy to deviate in the process of moving to a heating furnace for solidification after alignment. The polarization maintaining optical fiber connector comprises a core insert and a polarization maintaining optical fiber inserted in the core insert, wherein a tail sleeve is arranged at the tail part of the core insert; the manufacturing method comprises the following steps: filling thermosetting glue in the ferrule, and inserting the polarization maintaining optical fiber into the ferrule; fixing the core insert by using a clamp, and moving the core insert to the position under an optical microscope system to align panda eyes in the polarization-maintaining optical fiber; heating the polarization maintaining fiber connector in situ by adopting a movable heat source to pre-cure the thermosetting glue; and taking out the core insert from the clamp, and moving the core insert to a heating furnace for complete solidification. The invention directly controls the polarization maintaining angle and extinction ratio index of the bear cat eye from the structure and manufacturing method of the polarization maintaining connector. The manufacturing process of the polarization maintaining connector is simple and feasible, the quality is stable, and the extinction ratio index is optimal.
Description
Technical Field
The invention belongs to the technical field of optical fiber connectors, and particularly relates to a polarization maintaining optical fiber connector and a manufacturing method thereof.
Background
With the increasing requirements of coherent optical communication and optical fiber gyroscopes and other sensing systems on polarization state control, polarization-maintaining optical fibers are required in more and more places. Compared with the traditional optical fiber jumper, the polarization maintaining jumper has the advantages that the polarization maintaining optical fiber transmits polarized light signals, the linear polarization direction can be kept unchanged, the coherent signal to noise ratio is improved, the high-precision measurement of physical quantity is realized, and the like. The polarization maintaining optical fiber is generally divided into geometric polarization maintaining optical fiber and stress type polarization maintaining optical fiber, and the geometric polarization maintaining optical fiber structure is mainly elliptical fiber core polarization maintaining optical fiber and is applied to some special application fields. The stress type polarization maintaining optical fiber mainly comprises panda type polarization maintaining optical fibers, elliptic type polarization maintaining optical fibers, butterfly type polarization maintaining optical fibers and bow tie type polarization maintaining optical fibers.
Panda type polarization maintaining optical fiber has natural advantages in birefringence, geometric characteristics, structural symmetry and longitudinal uniformity of the optical fiber; meanwhile, the panda type polarization maintaining optical fiber is simple to manufacture and suitable for mass production, so that the panda type polarization maintaining optical fiber is commonly used in China. The structure of the panda type polarization maintaining fiber is shown in fig. 1, and comprises a fiber core and stress bars (panda eyes) on two sides. The stress rod creates stress in the fiber that favors light propagation in polarization in only one direction. When polarization maintaining fibers are terminated by fiber optic connectors, the stress bars should be aligned with the connector coordination bonds. Whether the polarization maintaining fiber connector is aligned with the coordination bond or not directly determines the link transmission function of the polarization maintaining fiber connector, and generally ensures that the angle deviation is < + -5 degrees, thereby indirectly ensuring the extinction ratio index.
In order to align the bear cat eye with the connector coordination bond, the conventional production practice on the market is: the connector ferrule is filled with thermosetting glue, and when the glue is not fixed, the ferrule is aligned Xiong Maoyan under the magnifying glass by rotating the fiber core, and the ferrule is placed on a curing oven for curing after alignment. The production method has the problems that after the bear cat eye is aligned, the connector insert which is not solidified is required to be moved from the clamp to the heating furnace for heating and solidification, in the process, the fiber core is easy to rotate under the action of stress, the aligned fiber core rotates, and once the offset angle of Xiong Maoyan is overlarge (more than 5 degrees), the connector is required to be cut off for adding a connector again, so that the labor hour is wasted, and the quality is unstable.
In order to avoid the rotation after alignment of panda eyes is completed, the structure of a polarization maintaining connector is generally improved, for example, patent publication No. CN216118092U discloses a polarization maintaining connector. The polarization maintaining connector comprises a frame sleeve, a core insert, an angle fixing ring and a stopper; the insert core is arranged in the frame sleeve; the angle fixing ring is connected with the insert core in an axial sliding way, and the insert core is driven to rotate by rotating the angle fixing ring; the outer periphery of the retainer is fixedly connected with the frame sleeve, the angle fixing ring penetrates through the retainer, a filling groove is formed in the inner cavity wall of the retainer, and the filling groove extends from the end face of one end, far away from the lock pin, of the retainer to the direction close to the lock pin; the periphery of the angle fixing ring is provided with an anti-rotation groove, and the filling groove and the anti-rotation groove are at least partially overlapped along the axial direction of the frame sleeve; by injecting glue into the filling groove, a fixing structure is formed between the angle fixing ring and the stopper after the glue is solidified. According to the polarization-maintaining connector provided by the invention, after the polarization angle is adjusted, the angle fixing ring cannot rotate in angle, so that the stability of the polarization-maintaining connector is improved. However, the cost of the polarization maintaining connector is obviously increased compared with that of the traditional connector, and the polarization maintaining connector is difficult to meet the practical application. In addition, patent publication No. CN116184576a discloses a high extinction ratio polarization maintaining fiber joint and a manufacturing method thereof, and the manufacturing method of the high extinction ratio polarization maintaining fiber joint comprises the following steps: inserting the fiber core of the polarization maintaining fiber into the fiber core through hole of the inserting core; 353ND glue is injected into the fiber core through hole, so that adjustment of the cat eye direction of the polarization maintaining fiber is completed; the method comprises the steps of (1) injecting UV glue at the outlet of a fiber core through hole, and irradiating with a UV lamp to pre-fix the fiber core; standing the ferrule with the pre-fixed fiber core for a first preset time period at a first preset temperature; and (3) carrying out gradient heating baking on the core insert after standing for the first preset time period to finish the fixation of the fiber core and the core insert. The influence of stress on the optical fiber during glue solidification is reduced, so that the extinction ratio is improved; and UV glue is added at the position of the fiber core through hole, so that the polarization maintaining fiber is pre-fixed and prevented from rotating freely. However, since the UV glue is less at the core through hole and is located at the head, after Xiong Maoyan, the stress is transferred to the curing end of the core head during the movement of the connector from the jig to the heating furnace, making it difficult to achieve a good pre-fixing effect.
Disclosure of Invention
Aiming at the technical problem that the alignment of the bear cat eye is easy to deviate in the process of moving to a heating furnace for solidification after the alignment is finished, the invention provides the polarization maintaining fiber connector and the manufacturing method thereof, and the polarization maintaining angle and the extinction ratio index of the bear cat eye are directly controlled from the structure and the manufacturing method of the polarization maintaining connector. The manufacturing process of the polarization maintaining connector is simple and feasible, the quality is stable, and the extinction ratio index is optimal.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the lock pin and locks the polarization maintaining optical fiber in the lock pin, the afterbody of the lock pin has a tail sleeve; the manufacturing method comprises the following steps:
(1) Filling thermosetting glue in the core insert and the tail sleeve, and inserting the polarization maintaining optical fiber into the core insert from the tail sleeve end;
(2) Fixing the core insert by adopting a flange clamp, and moving the core insert to the position of the panda eye direction in the polarization-maintaining optical fiber under the optical microscope system;
(3) Heating the polarization maintaining fiber connector in situ by adopting a heat source to pre-cure the thermosetting glue;
(4) And taking out the insert core from the flange clamp until the insert core is completely solidified in the heating furnace.
The insert core is a ceramic insert core.
The tail sleeve is a metal tail sleeve. The tail sleeve can protect the polarization maintaining optical fiber, and the risk of breakage of the polarization maintaining optical fiber can be reduced when the polarization maintaining optical fiber is bent. And the metal tail sleeve has good heat conductivity and can generate a good pre-curing effect.
The thermosetting glue is epoxy resin glue, polyurethane glue, amino resin glue, phenolic resin glue or acrylic resin glue.
The heat source is wind heat type or light heat type.
The optical microscope system is a ccd camera.
The specific method for in-situ heating in the step (3) comprises the following steps: after the positioning is completed, the polarization maintaining optical fiber and the ferrule are not moved, and a heat source is used for heating the polarization maintaining optical fiber connector.
The heating temperature of the heat source is 100-200 ℃ and the heating time is 1-6min when the polarization maintaining fiber connector is heated.
The curing temperature in the heating furnace is 80-200 ℃ and the curing time is 8-60min.
The invention has the beneficial effects that: according to the invention, after panda eyes are positioned, the in-situ polarization maintaining fiber connector is subjected to in-situ addition, so that thermosetting glue at the positions of the ferrule or the tail sleeve is pre-cured in advance, and stress is prevented from being transmitted to the head of the fiber core in the process of moving the polarization maintaining fiber. The problem that the fiber core moves and rotates in the process that the connector moves from the clamp to the heating furnace after aligning the bear cat eye is effectively solved, and the device is convenient and efficient, and the yield is obviously improved. Through practical production verification, the offset angle of the polarization maintaining connector manufactured by the invention, xiong Maoyan, can be controlled within +/-1 DEG, the extinction ratio can reach more than 25dB, and the yield can reach more than 97%. The process has the advantages of low equipment cost, simple method, easy grasp, stable and reliable quality and obvious economic effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a polarization maintaining fiber.
Fig. 2 is a schematic diagram illustrating the manufacture of the polarization maintaining fiber connector of the present invention.
In the figure, 1, a ferrule; 2. a tail sleeve; 3. a thermosetting glue; 4. a heat source.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
As shown in FIG. 2, the polarization maintaining fiber connector comprises a ferrule 1 and a polarization maintaining fiber inserted in the ferrule 1, wherein a tail part of the ferrule 1 is provided with a tail sleeve 2; the tail sleeve 2 is fixedly connected with the ferrule 1, plays a role in protecting the polarization maintaining optical fiber, and can reduce the fracture risk of the polarization maintaining optical fiber when the polarization maintaining optical fiber is bent. The manufacturing method comprises the following steps:
(1) Filling thermosetting glue 3 in the ferrule 1 and the tail sleeve 2, and inserting the polarization maintaining optical fiber into the ferrule 1 from the end of the tail sleeve 2;
(2) Fixing the ferrule 1 by adopting a flange clamp, and moving the ferrule to the position of the panda eye direction in the polarization-maintaining optical fiber under the optical microscope system;
(3) Heating the polarization maintaining fiber connector in situ by adopting a heat source 4 to pre-cure the thermosetting glue 3;
(4) And taking out the insert core 1 from the flange clamp until the heating furnace is completely solidified.
The ferrule 1 is a ceramic ferrule 1. Chamfer angles can be arranged on the outer periphery of the front end of the ceramic ferrule 1, so that the ceramic ferrule 1 can be conveniently in butt joint with a butt joint assembly; the fiber jack at the rear end part of the ceramic ferrule 1 is arranged in a horn mouth shape so as to facilitate the smooth insertion of the polarization maintaining fiber into the fiber jack. The minimum diameter of the optical fiber insertion hole is set to be slightly larger than the diameter of the polarization maintaining fiber so as to facilitate smooth insertion of the polarization maintaining fiber and to be able to fill the thermosetting glue 3.
The tail sleeve 2 is a metal tail sleeve 2, and a large cavity is formed between the tail sleeve 2 and the ferrule 1 and used for filling thermosetting glue 3. The metal tail sleeve 2 has good heat conductivity and can generate better pre-curing effect when being heated.
The thermosetting glue 3 is epoxy resin glue, and other types of thermosetting glue 3 can be adopted, so that the use requirement can be met.
The heat source 4 is a tool which is convenient and quick to take and can be heated quickly, so that the requirement of on-site quick processing is met more conveniently, and further, the heat source 4 is a wind heat type or photo-heat type heat source, and the wind heat type is heated by hot air, such as a hot air blower; the photo-thermal heat source is a light source excited by thermal energy, such as a heating lamp.
The optical microscope system is a ccd camera.
The specific method for in-situ heating in the step (3) comprises the following steps: after the positioning is completed, the polarization maintaining fiber and the ferrule 1 are not moved, and the heat source 4 is used for heating the polarization maintaining fiber connector.
The heating temperature of the heat source 4 is 100-200 ℃ and the heating time is 1-6min when the polarization maintaining fiber connector is heated.
The curing temperature in the heating furnace is 80-200 ℃ and the curing time is 8-60min.
Example 1
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule by adopting a hot air gun at 150 ℃ for 3min until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 120 ℃, and the time is 20min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
And detecting the finally prepared polarization maintaining optical fiber connector, wherein the offset angle of Xiong Maoyan can be controlled within +/-1 DEG, and the extinction ratio can reach more than 25 dB.
Example 2
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule by adopting a hot air gun at 180 ℃ for 3min until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 125 ℃, and the time is 25min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
Example 3
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating a metal tail sleeve part aligned with the tail part of the ceramic ferrule by adopting a hot air gun at 100 ℃ for 6min until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 120 ℃, and the time is 20min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
Example 4
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule for 1min by adopting a hot air gun at 200 ℃ until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 120 ℃, and the time is 20min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
Example 5
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule for 4min by adopting a hot air gun at 150 ℃ until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 120 ℃, and the time is 20min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
Example 6
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule for 2.5min by adopting a 160 ℃ hot air gun until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 110 ℃, and the time is 25min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
Example 7
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule by adopting a hot air gun at 150 ℃ for 3min until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 80 ℃, and the time is 60min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
Example 8
The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the ceramic ferrule and polarization maintaining optical fiber inserted in ceramic ferrule, the afterbody of the ferrule has metal tail sleeves; the manufacturing method comprises the following steps:
(1) Filling epoxy resin glue in the ceramic ferrule, and inserting the polarization maintaining optical fiber into an optical fiber jack of the ceramic ferrule from the metal tail sleeve;
(2) Fixing the ceramic ferrule by adopting a flange clamp, and moving the ceramic ferrule to the position under a ccd camera to position the panda eye direction in the polarization-maintaining optical fiber;
(3) And (3) heating the metal tail sleeve part of the tail part of the ceramic ferrule by adopting a hot air gun at 150 ℃ for 3min until the epoxy resin glue is pre-cured.
(4) Taking out the insert core from the flange clamp until the insert core is completely solidified in a heating furnace, wherein the solidification temperature in the melting furnace is 200 ℃, and the time is 8min.
(5) And (5) installing the components on the completely cured polarization maintaining optical fiber connector, grinding and polishing the end face and checking the end face.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The manufacturing approach of a polarization maintaining optical fiber connector, the polarization maintaining optical fiber connector includes the lock pin and locks the polarization maintaining optical fiber in the lock pin, the afterbody of the lock pin has a tail sleeve; the manufacturing method is characterized by comprising the following steps:
(1) Filling thermosetting glue in the core insert and the tail sleeve, and inserting the polarization maintaining optical fiber into the core insert from the tail sleeve end;
(2) Fixing the core insert by using a clamp, and moving the core insert to the position under an optical microscope system to align panda eyes in the polarization-maintaining optical fiber;
(3) Heating the polarization maintaining fiber connector in situ by adopting a heat source to pre-cure the thermosetting glue;
(4) And taking out the core insert from the clamp, and moving the core insert to a heating furnace for complete solidification.
2. The method of claim 1, wherein the ferrule is a ceramic ferrule.
3. The method of claim 2, wherein the boot is a metal boot.
4. The method of claim 3, wherein the thermosetting glue is an epoxy glue, a polyurethane glue, an amino resin glue, a phenolic resin glue, or an acrylic resin glue.
5. The method of claim 4, wherein the heat source is a wind-heat type or photo-heat type heat source.
6. The method of claim 5, wherein the optical microscope system is a ccd optical system.
7. The method for manufacturing a polarization maintaining fiber connector according to claim 6, wherein the specific method for in-situ heating in the step (3) is as follows: after panda eyes are positioned, the polarization maintaining optical fiber and the inserting core are not moved, and the polarization maintaining optical fiber connector is heated by a heat source.
8. The method of manufacturing a polarization maintaining fiber connector according to claim 7, wherein the heating temperature of the heat source is 100-200 ℃ and the heating time is 1-6min.
9. The method of any one of claims 1 to 8, wherein the curing temperature in the heating furnace is 80 to 200 ℃ for 8 to 60 minutes.
10. A polarization maintaining fiber connector prepared according to the method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311060595.5A CN117031640A (en) | 2023-08-22 | 2023-08-22 | Polarization maintaining fiber connector and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311060595.5A CN117031640A (en) | 2023-08-22 | 2023-08-22 | Polarization maintaining fiber connector and manufacturing method thereof |
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