CN113290467A - Optical fiber array alignment grinding clamping system and method - Google Patents
Optical fiber array alignment grinding clamping system and method Download PDFInfo
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- CN113290467A CN113290467A CN202110844619.0A CN202110844619A CN113290467A CN 113290467 A CN113290467 A CN 113290467A CN 202110844619 A CN202110844619 A CN 202110844619A CN 113290467 A CN113290467 A CN 113290467A
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- optical fiber
- fiber array
- clamping plate
- metal base
- glass sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B19/226—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of the ends of optical fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
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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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses an optical fiber array aligning, grinding and clamping system and a method, wherein the system comprises an optical fiber clamping mechanism, a vacuum tight-suction mechanism and an optical microscopic coarse adjustment mechanism, wherein the vacuum tight-suction mechanism and the optical microscopic coarse adjustment mechanism are connected with the optical fiber clamping mechanism; the optical fiber clamping mechanism comprises a metal base, a glass sheet base and an optical fiber clamping plate, wherein the glass sheet base is arranged on the metal base; the vacuum tight-suction mechanism comprises a vacuum pump air outlet pipe communicated with the metal base and a micro vacuum-pumping machine connected with the vacuum pump air outlet pipe; the optical microscopic coarse adjustment mechanism comprises an optical microscope and a computer, wherein the optical microscope is used for observing the arrangement condition of the optical fiber array; after the optical fiber arrays are arranged on the glass sheet base in order, fixing the metal base on a frame of the high-precision optical fiber grinding machine, and performing high-precision alignment grinding on the optical fiber arrays by replacing grinding paper with higher meshes and matched grinding liquid step by step; the invention can greatly reduce the alignment difficulty of the optical fiber array, improve the stability of the optical fiber array, ensure the processing quality of products, and has simple preparation process and high qualification rate.
Description
Technical Field
The invention belongs to the technical field of manufacturing of optical fiber arrays and devices thereof, and particularly relates to an optical fiber array aligning, grinding and clamping system and method.
Background
Optical fiber communication is a way of transmitting information by light and optical fiber; an optical Fiber Array (FA, Fiber Array) is formed by mounting an optical Fiber, a bundle of optical fibers or an optical Fiber ribbon on an Array substrate by using a V-shaped groove; the optical fiber array is such that the bare fiber portion from which the coating layer of the optical fiber is removed is placed in the V-groove, pressed by the presser member and adhered by the adhesive.
In the transmission process of optical signals, each optical fiber in the array optical fiber must be aligned with each optical channel in the planar optical waveguide device, which requires equal spacing between the array optical fibers, and the end faces of each optical fiber of the array optical fiber are aligned; if the alignment precision of the optical fiber array is not enough, the loss is easily overlarge and the signal transmission is unstable; in order to satisfy the requirements of precision, yield and flatness of the end face of a product, the end face of the optical fiber array needs to be ground to have a high degree of running-in, and therefore, precision alignment and grinding of the optical fiber array are effective means for efficient optical communication.
However, the existing optical fiber array alignment adopts the scheme that after single optical fibers are cut one by one, the optical fibers are arranged under a microscope, the operation of the scheme is difficult, the high-precision arrangement of end face alignment is not easy to realize, in addition, the grinding rack in the prior art has low grinding efficiency and poor positioning, so that the end face planeness of the ground optical fiber array is different, the optical fiber array has poor stability, the qualification rate of products is reduced, and the production efficiency is seriously influenced; therefore, an aligning, grinding and clamping device for an optical fiber array, which can greatly reduce the aligning difficulty of the optical fiber array, has high stability of the optical fiber array, simple preparation process and high qualification rate, is urgently needed.
Disclosure of Invention
Aiming at the defects or improvement requirements in the prior art, the invention provides an optical fiber array aligning, grinding and clamping system, which is characterized in that an optical fiber V-shaped groove for accommodating a bare optical fiber part is arranged on a glass sheet base, the glass sheet base is embedded into a metal base, optical fibers are orderly placed on the glass sheet base in sequence, the bare optical fiber part is placed in the optical fiber V-shaped groove and fixed by an optical fiber clamping plate, the arrangement condition of the end face of an optical fiber array is observed by an optical microscope CCD (charge coupled device) and manually fine-tuned according to images, so that the arrangement of the optical fiber array is orderly; then, the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate and the glass sheet base are solidified together through ultraviolet curing glue, a micro vacuum pump is started, and the glass sheet base and the metal base are tightly adsorbed together through a micro vacuum-pumping machine; and then fixing the metal base on a frame of the high-precision optical fiber grinding machine, and carrying out high-precision grinding on the optical fiber array by gradually replacing the grinding paper with higher meshes and matched grinding liquid to realize high-precision alignment of the optical fiber array. The invention can greatly reduce the alignment difficulty of the optical fiber array, improve the stability of the optical fiber array, ensure the processing quality of products, and has simple preparation process and high qualification rate.
In order to achieve the above object, an aspect of the present invention provides an optical fiber array aligning, grinding and clamping system, which includes an optical fiber clamping mechanism for fixing an optical fiber array, a vacuum tight-suction mechanism connected to the optical fiber clamping mechanism, and an optical micro coarse adjustment mechanism; wherein the content of the first and second substances,
the optical fiber clamping mechanism comprises a metal base, an optical fiber clamping plate arranged on the metal base and a glass sheet base provided with an optical fiber V-shaped groove and is used for fixing and clamping an optical fiber array;
the vacuum tight-suction mechanism comprises a vacuum pump air outlet pipe communicated with the metal base and a micro vacuum-pumping machine connected with the vacuum pump air outlet pipe and is used for tightly adsorbing the glass sheet base and the metal base;
the optical microscopic coarse adjustment mechanism comprises an optical microscope and a computer which are used for observing the arrangement condition of the optical fiber array, and is used for coarsely adjusting the optical fiber array arranged on the glass sheet base;
the dispensing and curing mechanism comprises an ultraviolet curing adhesive and an ultraviolet curing gun, wherein the ultraviolet curing adhesive is used for curing the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate;
the metal base is fixed on a rack of the high-precision optical fiber grinding machine, and the optical fiber array is ground in high precision by replacing grinding paper with higher meshes and matched grinding liquid step by step, so that the high-precision alignment of the optical fiber array is realized.
Furthermore, the glass sheet base is a rectangular block provided with an L-shaped gap, and one surface of the glass sheet base is divided into two stepped parts by the L-shaped gap;
the lower step is a plane, and a plurality of optical fiber V-shaped grooves are carved on the step with the higher glass sheet base;
the extending direction of the optical fiber V-shaped groove is consistent with the plane direction of the lower step;
the etching depth and the etching width of the optical fiber V-shaped groove and the distance between adjacent grooves are matched with the diameter of a coating layer of the optical fiber array;
the number of the optical fiber V-shaped grooves can be increased according to requirements;
the height of the step is matched with the diameter of the coating layer of the optical fiber array.
Further, the optical fiber clamping plates comprise a first clamping plate and a second clamping plate, the first clamping plate is used for clamping a coating layer part of the optical fiber array and the second clamping plate is used for clamping a bare fiber part of the optical fiber array, and the first clamping plate and the second clamping plate are arranged in parallel at intervals;
the first clamping plate and the second clamping plate are both made of metal materials and are connected with the metal base through metal hinges;
the position of the metal hinge is matched with the diameter of an optical fiber coating layer of the clamped optical fiber array so as to tightly clamp the optical fiber clamping plate and the metal base.
Furthermore, a strong magnet and high-elastic foam are respectively arranged on the first clamping plate and the second clamping plate.
Furthermore, strong magnets matched with the positions of the strong magnets on the first clamping plate and the second clamping plate are arranged on the metal base;
through rotating first splint with the second splint makes four powerful magnets can each other magnetism inhale, and then fixes fiber array.
Furthermore, the size of the high-elasticity foam is matched with the diameter of the optical fiber of the clamped optical fiber array;
the high-elasticity foam on the first clamping plate and the second clamping plate is tightly compacted on the coating layer and the bare fiber of the optical fiber array respectively, so that the optical fiber is prevented from micro-moving during subsequent dispensing and curing.
Furthermore, the metal base is hollow, and an air inlet hole is formed in the position where the metal base is in close contact with the glass sheet base;
the side surface of the metal base is provided with an air outlet communicated with the air inlet;
the air outlet pipe of the vacuum pump is arranged on the air outlet hole, and the glass sheet base is tightly adsorbed to the metal base through the miniature vacuum extractor.
Furthermore, the metal base is provided with a screw hole for fixing the metal base and the rack of the high-precision optical fiber grinding machine;
the size and the position of the screw hole are matched with the size and the position of the screw hole of the rack of the high-precision optical fiber grinding machine.
Furthermore, the diameter range of the coating layer of the optical fiber array is 10-2500 mu m.
Another aspect of the present invention provides a method for aligning, grinding and clamping an optical fiber array, comprising the following steps:
s100: embedding the glass sheet base into the metal base;
s200: stripping a coating layer with a certain length from the optical fiber array, sequentially and tightly placing the cut optical fibers on a glass sheet base, and sequentially placing bare fiber parts of the optical fiber array in optical fiber V-shaped grooves on the glass sheet base;
s300: rotating the first clamping plate through a metal hinge to enable the powerful magnets of the first clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the coating layer part of the optical fiber array through high-elastic foam;
s400: placing the metal base under the visual field of an optical microscope, observing the arrangement condition of the bare fiber end surfaces of the optical fiber array under the optical microscope through a computer, manually finely adjusting the relative position of each path of optical fiber, and arranging the end surfaces of the optical fiber array as orderly as possible;
s500: rotating the second clamping plate through a metal hinge to enable the powerful magnets on the second clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the bare fiber part of the optical fiber array through high-elastic foam;
s600: curing the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate and the glass sheet base together by using ultraviolet curing glue and an ultraviolet curing gun;
s700: the glass sheet base seat and the metal base seat are tightly adsorbed by a micro vacuum-pumping machine;
s800: the metal base is fixed on a rack of the high-precision optical fiber grinding machine, and the optical fiber array is ground in high precision by replacing grinding paper with higher meshes and matched grinding liquid step by step, so that the optical fiber array is aligned and ground in high precision.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) according to the optical fiber array aligning, grinding and clamping system, the optical fiber V-shaped groove for accommodating the bare optical fiber part is formed in the glass sheet base, the glass sheet base is embedded into the metal base, optical fibers are sequentially and tidily placed on the glass sheet base, the bare optical fiber part is placed in the optical fiber V-shaped groove and fixed through the optical fiber clamping plate, the arrangement condition of the end face of the optical fiber array is observed through an optical microscope, manual fine adjustment is carried out according to images, and the arrangement of the optical fiber array is tidy; fixing the optical fiber part which is not clamped by the clamping plate and the glass sheet metal base together through ultraviolet curing glue, opening a micro vacuum pump, and tightly adsorbing the glass sheet metal base and the metal base together through a micro vacuum-pumping machine; fixing the metal base on a frame of the high-precision optical fiber grinding machine, and carrying out high-precision grinding on the optical fiber array by replacing grinding paper with higher meshes and matched grinding liquid step by step so as to realize high-precision alignment of the optical fiber array; the invention can greatly reduce the alignment difficulty of the optical fiber array, improve the stability of the optical fiber array, ensure the processing quality of products, and has simple preparation process and high qualification rate.
(2) According to the optical fiber array aligning, grinding and clamping system, a first clamping plate and a second clamping plate which are movable in parallel at intervals are arranged on a metal base through a metal hinge and are respectively used for clamping a coating layer and a bare fiber part of an optical fiber array; according to the diameter of the bare optical fiber and the diameter of the coating layer clamping the optical fiber array, the position of the metal hinge can be adjusted, and the optical fiber clamping plate is tightly combined with the metal base; the first clamping plate and the second clamping plate are respectively provided with a strong magnet and high-elastic foam; the metal base is provided with a strong magnet matched with the strong magnets on the first clamping plate and the second clamping plate; the four strong magnets can be magnetically attracted with each other by rotating the first clamping plate and the second clamping plate, so that the optical fiber array is fixed; the size of the high-elastic foam is matched with the diameter of the optical fiber of the clamped optical fiber array; the high-elastic foam on the first clamping plate and the second clamping plate is respectively used for tightly compacting a coating layer and a bare fiber part of the optical fiber array so as to ensure that the optical fiber can not slightly move when the optical fiber is cured by the subsequent ultraviolet curing glue.
Drawings
FIG. 1 is a schematic structural diagram of an optical fiber clamping mechanism and a vacuum chucking mechanism of an optical fiber array aligning, grinding and clamping system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical fiber array structure of an optical fiber array alignment grinding clamping system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a glass substrate base structure of an optical fiber array alignment polishing clamping system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fiber V-groove structure of a fiber array alignment grinding clamping system according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an optical micro coarse adjustment mechanism of an optical fiber array alignment grinding clamping system according to an embodiment of the present invention;
FIG. 6 is a schematic view of an ultraviolet curing gun of an optical fiber array alignment grinding clamping system according to an embodiment of the present invention;
FIG. 7 is a schematic view of an UV-curable adhesive structure of an optical fiber array alignment grinding clamping system according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for aligning, polishing and clamping an optical fiber array according to an embodiment of the invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-optical fiber array, 2-metal base, 3-glass sheet base, 4-optical fiber V-shaped groove, 5-optical fiber clamping plate, 51-first clamping plate, 52-second clamping plate, 6-strong magnet, 7-high elastic foam, 8-metal hinge, 9-air outlet, 10-vacuum pump air outlet, 11-micro vacuum extractor, 12-optical microscope, 13-computer, 14-data connecting line, 15-screw hole, 16-ultraviolet curing adhesive and 17-ultraviolet curing gun.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-7, the present invention provides an optical fiber array aligning, grinding and clamping system, which includes an optical fiber clamping mechanism for fixing an optical fiber array 1, a vacuum tight-suction mechanism connected to the optical fiber clamping mechanism, an optical micro-coarse adjustment mechanism, and a dispensing and curing mechanism; the optical fiber clamping mechanism comprises a metal base 2, a glass sheet base 3 and an optical fiber clamping plate 5, wherein the glass sheet base 3 is arranged on the metal base 2; the vacuum tight-suction mechanism comprises a vacuum pump air outlet pipe 10 communicated with the metal base 2 and a micro vacuum-pumping machine 11 connected with the vacuum pump air outlet pipe 10; the optical microscope coarse adjustment mechanism comprises an optical microscope 12 and a computer 13, wherein the optical microscope 12 is used for observing the arrangement condition of the optical fiber array 1; the dispensing and curing mechanism comprises ultraviolet curing glue 16 and an ultraviolet curing gun 17, wherein the ultraviolet curing glue is used for curing the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate; the optical fiber clamping mechanism is used for fixing and clamping the optical fiber array 1; the vacuum tight-suction mechanism is used for tightly sucking the glass sheet base 3 and the metal base 2; the optical micro coarse adjustment mechanism is used for performing coarse adjustment on the optical fiber array 1 distributed on the glass sheet base 3; after the optical fiber arrays are arranged on the glass sheet base in order initially, fixing the metal base on a rack of a high-precision optical fiber grinding machine, and grinding the optical fiber arrays in high precision by replacing grinding paper with higher meshes and matched grinding liquid step by step so as to realize high-precision alignment of the optical fiber arrays; the invention can greatly reduce the alignment difficulty of the optical fiber array, improve the stability of the optical fiber array, ensure the processing quality of products, and has simple preparation process and high qualification rate.
Further, as shown in fig. 1-4, the diameter of the coating layer of the optical fiber array 1 ranges from 10 μm to 2500 μm; the glass sheet base 3 is a rectangular block provided with an L-shaped gap, and one surface of the glass sheet base 3 is divided into two stepped parts by the L-shaped gap; wherein, the lower step is a plane, and a plurality of optical fiber V-shaped grooves 4 for placing the optical fiber array 1 are carved on the higher step; the extending direction of the optical fiber V-shaped groove 4 is consistent with the plane direction of the lower step; the etching depth and the etching width of the optical fiber V-shaped groove 4 and the distance between adjacent grooves are matched with the diameter of the coating layer of the optical fiber array 1; the number of the optical fiber V-shaped grooves 4 etched on the glass sheet base 3 can be increased according to the requirement; the height of the steps (the height difference between the plane of the higher step and the plane of the lower step) is matched with the diameter of the coating layer of the optical fiber array 1, so that the bare optical fiber part can be completely placed in the optical fiber V-shaped groove 4; when the optical fiber array is used, a coating layer with the length of about 2 centimeters is stripped from the optical fiber array 1, the cut optical fibers are sequentially and tightly placed on the glass sheet base 3, the bare fiber parts of the optical fiber array 1 are sequentially placed in the optical fiber V-shaped grooves 4, and then the bare fiber parts are roughly adjusted by the optical microscope 12 and then clamped and fixed by the optical fiber clamping plates 5.
Further, as shown in fig. 1 to 4, the optical fiber clamping plate 5 includes a first clamping plate 51 for clamping a coating layer portion of the optical fiber array 1 and a second clamping plate 52 for clamping a bare fiber portion of the optical fiber array 1, which are arranged in parallel at intervals; the first clamping plate 51 and the second clamping plate 52 are both made of metal materials and are connected with the metal base 2 through a metal hinge 8; according to the diameter of the bare optical fiber and the diameter of the coating layer clamping the optical fiber array 1, the position of the metal hinge 8 can be adjusted so as to tightly combine the optical fiber clamping plate with the metal base; the first clamping plate 51 and the second clamping plate 52 are respectively provided with a strong magnet 6 and high-elastic foam 7; the metal base 2 is provided with a strong magnet 6 matched with the strong magnets 6 on the first clamping plate 51 and the second clamping plate 52; the four strong magnets 6 can be magnetically attracted with each other by rotating the first clamping plate 51 and the second clamping plate 52, so that the optical fiber array is fixed; the size of the high-elasticity foam 7 is matched with the diameter of the optical fiber of the clamped optical fiber array 1; the high-elasticity foam 7 on the first clamping plate 51 and the second clamping plate 52 is respectively used for tightly compacting the coating layer and the bare fiber part of the optical fiber array so as to ensure that the optical fiber does not slightly move when the optical fiber is cured by the subsequent ultraviolet curing glue.
Further, as shown in fig. 1-7, the metal base 2 is hollow, and an air inlet is arranged at a position where the metal base 2 is in close contact with the glass sheet base 3; the side surface of the metal base 2 is provided with an air outlet 9 communicated with the air inlet; the vacuum pump air outlet pipe 10 is arranged on the air outlet hole 9, and the glass sheet base 3 is tightly adsorbed to the metal base 2 through the micro vacuum-pumping machine 11; selecting a micro vacuum-pumping machine with adaptive working power according to the size of the glass plate base 3; the metal base 2 is provided with a screw hole 15 for fixing with a high-precision optical fiber grinding machine frame; the size and the position of the screw hole 15 are matched with the size and the position of a screw hole of a rack of the high-precision optical fiber grinding machine; fix the metal base in high accuracy fiber grinding machine frame through the screw, carry out the high accuracy through the higher mesh grinding paper of change step by step and supporting lapping liquid and grind fiber array, realize fiber array's high accuracy alignment.
The working principle of the optical fiber array aligning, grinding and clamping system comprises the following steps: embedding a glass sheet base 3 which is independently designed and engraved with a plurality of optical fiber V-shaped grooves 4 on the metal base 2; sequentially arranging the bare fiber parts of the optical fiber array in an optical fiber V-shaped groove; rotating the first clamping plate through a metal hinge to enable the powerful magnets of the first clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the coating layer part of the optical fiber array through high-elastic foam; the optical microscope 12 is connected with the computer 13 through the data line 14, the metal base 2 holding the optical fiber array 1 is placed in the visual field range of the optical microscope, the arrangement condition of the end face of the optical fiber array 1 is observed through the computer 13, and each optical fiber in the optical fiber array 1 is manually adjusted through the image of the end face of the optical fiber array 1 on the computer 13 to ensure that the arrangement of the end face is relatively neat; rotating the second clamping plate through a metal hinge to enable the powerful magnets on the second clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the bare fiber part of the optical fiber array through high-elastic foam; then, the part of the optical fiber array 1 which is not clamped by the optical fiber clamping plate and the glass sheet base 3 are cured through ultraviolet curing glue 16 and an ultraviolet curing gun 17; the air outlet 9 on the metal base 2 is connected with a micro vacuum pump 11 through a vacuum pump air outlet pipe 10, and the glass plate base and the metal base are tightly adsorbed through the micro vacuum pump; fixing the metal base 2 on a rack of a high-precision optical fiber grinding machine through a screw hole 15, and performing high-precision grinding on the optical fiber array by replacing grinding paper with a higher mesh number step by step and matched grinding liquid to realize high-precision alignment grinding of the optical fiber array; the invention can greatly reduce the alignment difficulty of the optical fiber array, improve the stability of the optical fiber array, ensure the processing quality of products, and has simple preparation process and high qualification rate.
As shown in fig. 8, the method for aligning, grinding and clamping an optical fiber array according to the present invention comprises the following steps:
s100: embedding the glass sheet base into the metal base;
s200: stripping a coating layer with the length of about 2 cm from the optical fiber array, sequentially and tightly placing the cut optical fibers on a glass sheet base, and sequentially placing bare fiber parts of the optical fiber array in an optical fiber V-shaped groove on the glass sheet base;
s300: rotating the first clamping plate through a metal hinge to enable the powerful magnets of the first clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the coating layer part of the optical fiber array through high-elastic foam;
s400: connecting the CCD of the optical microscope with a computer through a data transmission line, placing a metal base under the visual field of the optical microscope, observing the arrangement condition of the bare fiber end surfaces of the optical fiber array through the computer, manually finely adjusting the relative position of each path of optical fiber, and arranging the end surfaces of the optical fiber array as orderly as possible;
s500: rotating the second clamping plate through a metal hinge to enable the powerful magnets on the second clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the bare fiber part of the optical fiber array through high-elastic foam;
s600: curing the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate and the glass sheet base together by using ultraviolet curing glue and an ultraviolet curing gun;
s700: connecting an air outlet hole on the metal base with a micro vacuumizing machine through a vacuum air outlet pipe, and opening the micro vacuumizing machine to tightly adsorb the glass sheet base and the metal base;
s800: and then, the metal base is fixed on a rack of the high-precision optical fiber grinding machine through the screw holes, and the optical fiber array is ground in high precision by replacing the grinding paper with higher meshes and matched grinding liquid step by step, so that the high-precision alignment grinding of the optical fiber array is realized.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An optical fiber array aligning, grinding and clamping system is characterized in that: the device comprises an optical fiber clamping mechanism for fixing an optical fiber array (1), a vacuum tight-suction mechanism, an optical micro coarse adjustment mechanism and a dispensing curing mechanism, wherein the vacuum tight-suction mechanism, the optical micro coarse adjustment mechanism and the dispensing curing mechanism are connected with the optical fiber clamping mechanism; wherein the content of the first and second substances,
the optical fiber clamping mechanism comprises a metal base (2), an optical fiber clamping plate (5) arranged on the metal base (2) and a glass sheet base (3) provided with an optical fiber V-shaped groove (4), wherein a bare fiber part of the optical fiber array (1) is arranged in the optical fiber V-shaped groove (4), and the optical fiber array (1) is clamped and fixed through the optical fiber clamping plate (5);
the optical microscopic coarse adjustment mechanism comprises an optical microscope (12) and a computer (13) which are used for observing the arrangement condition of the optical fiber array (1), and is used for coarsely adjusting the optical fiber array (1) arranged on the glass sheet base (3);
the vacuum tight-suction mechanism comprises a vacuum pump air outlet pipe (10) communicated with the metal base (2) and a micro vacuum-pumping machine (11) connected with the vacuum pump air outlet pipe (10) and is used for tightly adsorbing the glass sheet base (3) and the metal base (2);
the dispensing and curing mechanism comprises ultraviolet curing glue (16) and an ultraviolet curing gun (17) which are used for curing the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate (5);
after the optical fiber array (1) is arranged on the glass sheet base (3) in order, the metal base (2) is fixed on a rack of the high-precision optical fiber grinding machine, and the optical fiber array is ground in high precision by replacing grinding paper with higher meshes and matched grinding liquid step by step, so that the high-precision alignment of the optical fiber array is realized.
2. The fiber array alignment abrasive clamping system of claim 1, wherein: the glass sheet base (3) is a rectangular block provided with an L-shaped gap, and one surface of the glass sheet base (3) is divided into two stepped parts by the L-shaped gap;
the lower step is a plane, and a plurality of optical fiber V-shaped grooves (4) are engraved on the higher step of the glass sheet base (3);
the extending direction of the optical fiber V-shaped groove (4) is consistent with the plane direction of the lower step;
the etching depth and the etching width of the optical fiber V-shaped groove (4) and the distance between adjacent grooves are matched with the diameter of a coating layer of the optical fiber array (1);
the number of the optical fiber V-shaped grooves (4) can be increased according to requirements;
the height of the step is matched with the diameter of the coating layer of the optical fiber array (1).
3. The fiber array alignment abrasive clamping system of claim 1, wherein: the optical fiber clamping plate (5) comprises a first clamping plate (51) and a second clamping plate (52), wherein the first clamping plate and the second clamping plate are arranged in parallel at intervals and used for clamping a coating layer part of the optical fiber array (1) and clamping a bare fiber part of the optical fiber array (1);
the first clamping plate (51) and the second clamping plate (52) are both made of metal materials and are connected with the metal base (2) through metal hinges (8);
the position of the metal hinge (8) is matched with the diameter of an optical fiber coating layer of the clamped optical fiber array (1) so as to tightly clamp the optical fiber clamping plate and the metal base.
4. The fiber array alignment abrasive clamping system of claim 3, wherein: the first clamping plate (51) and the second clamping plate (52) are respectively provided with a strong magnet (6) and high-elastic foam (7).
5. The fiber array alignment abrasive clamping system of claim 4, wherein: strong magnets (6) matched with the positions of the strong magnets on the first clamping plate (51) and the second clamping plate (52) are arranged on the metal base (2);
the four strong magnets (6) can be magnetically attracted with each other by rotating the first clamping plate (51) and the second clamping plate (52), and then the optical fiber array is fixed.
6. The fiber array alignment abrasive clamping system of claim 4, wherein: the size of the high-elasticity foam (7) is matched with the diameter of the optical fiber clamped with the optical fiber array (1);
the high-elasticity foam (7) on the first clamping plate (51) and the second clamping plate (52) are tightly compacted on the coating layer and the bare fiber of the optical fiber array respectively so as to ensure that the optical fiber does not slightly move when the subsequent dispensing and curing are carried out.
7. The fiber array alignment abrasive clamping system of any one of claims 1-6, wherein: the metal base (2) is hollow, and an air inlet is formed in the position where the metal base (2) is in close contact with the glass sheet base (3);
the side surface of the metal base (2) is provided with an air outlet (9) communicated with the air inlet;
the vacuum pump air outlet pipe (10) is arranged on the air outlet hole (9), and the glass sheet base (3) is tightly adsorbed to the metal base (2) through the micro vacuumizing machine (11).
8. The fiber array alignment abrasive clamping system of any one of claims 1-6, wherein: the metal base (2) is provided with a screw hole (15) for fixing with a high-precision optical fiber grinding machine frame;
the size and the position of the screw hole (15) are matched with the size and the position of the screw hole of the rack of the high-precision optical fiber grinding machine.
9. The fiber array alignment abrasive clamping system of any one of claims 1-6, wherein: the diameter of a coating layer of the optical fiber array (1) is 10-2500 mu m.
10. An optical fiber array alignment grinding clamping method, which is realized by applying the optical fiber array alignment grinding clamping system of any one of claims 1-9, and comprises the following steps:
s100: embedding the glass sheet base into the metal base;
s200: stripping a coating layer with a certain length from the optical fiber array, sequentially and tightly placing the cut optical fibers on a glass sheet base, and sequentially placing bare fiber parts of the optical fiber array in optical fiber V-shaped grooves on the glass sheet base;
s300: rotating the first clamping plate through a metal hinge to enable the powerful magnets of the first clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the coating layer part of the optical fiber array through high-elastic foam;
s400: placing the metal base under the visual field of an optical microscope, observing the arrangement condition of the bare fiber end surfaces of the optical fiber array under the optical microscope through a computer, manually finely adjusting the relative position of each path of optical fiber, and arranging the end surfaces of the optical fiber array as orderly as possible;
s500: rotating the second clamping plate through a metal hinge to enable the powerful magnets on the second clamping plate to attract the corresponding powerful magnets on the metal base, and tightly fixing the bare fiber part of the optical fiber array through high-elastic foam;
s600: curing the bare fiber part of the optical fiber array which is not covered by the optical fiber clamping plate and the glass sheet base together by using ultraviolet curing glue and an ultraviolet curing gun;
s700: the glass sheet base seat and the metal base seat are tightly adsorbed by a micro vacuum-pumping machine;
s800: the metal base is fixed on a rack of the high-precision optical fiber grinding machine, and the optical fiber array is ground in high precision by replacing grinding paper with higher meshes and matched grinding liquid step by step, so that the optical fiber array is aligned and ground in high precision.
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| CN202110844619.0A CN113290467A (en) | 2021-07-26 | 2021-07-26 | Optical fiber array alignment grinding clamping system and method |
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| CN202110844619.0A CN113290467A (en) | 2021-07-26 | 2021-07-26 | Optical fiber array alignment grinding clamping system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115793155A (en) * | 2023-02-02 | 2023-03-14 | 中山市美速光电技术有限公司 | Combined clamp for producing optical fiber array with 45-degree angle port |
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| JP2000193844A (en) * | 1998-10-20 | 2000-07-14 | Sumitomo Metal Mining Co Ltd | Manufacture of optical fiber array |
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| CN105467524A (en) * | 2015-12-11 | 2016-04-06 | 河南仕佳光子科技有限公司 | An apparatus for manufacturing a polarization maintaining fiber array and an application method thereof |
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| JP2000193844A (en) * | 1998-10-20 | 2000-07-14 | Sumitomo Metal Mining Co Ltd | Manufacture of optical fiber array |
| CN1564040A (en) * | 2004-04-05 | 2005-01-12 | 武汉海博光技术有限公司 | Optical fiber arranging method in optical fiber array assembly, and its appts. |
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Application publication date: 20210824 |