CN106291823A - A kind of pigtail assembly structure and manufacture method - Google Patents

A kind of pigtail assembly structure and manufacture method Download PDF

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Publication number
CN106291823A
CN106291823A CN201610855077.6A CN201610855077A CN106291823A CN 106291823 A CN106291823 A CN 106291823A CN 201610855077 A CN201610855077 A CN 201610855077A CN 106291823 A CN106291823 A CN 106291823A
Authority
CN
China
Prior art keywords
optical fiber
coating
substrate
coat
locating slot
Prior art date
Application number
CN201610855077.6A
Other languages
Chinese (zh)
Inventor
向美华
邓兴虎
代宏伟
Original Assignee
北京浦丹光电股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京浦丹光电股份有限公司 filed Critical 北京浦丹光电股份有限公司
Priority to CN201610855077.6A priority Critical patent/CN106291823A/en
Publication of CN106291823A publication Critical patent/CN106291823A/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/3608Fibre wiring boards, i.e. where fibres are embedded or attached in a pattern on or to a substrate, e.g. flexible sheets

Abstract

The invention provides a kind of pigtail assembly structure and manufacture method thereof, solve prior art optical fiber in groove, easily loosen the problem even come off.A kind of pigtail assembly structure that the present invention provides, it includes substrate and the optical fiber being connected with substrate, on described substrate, the installation direction along optical fiber is sequentially provided with coating position and locating slot, described coating position has the size bigger than described locating slot in the radial direction of described optical fiber installation direction, nuditing fiber docks through described coating position with described locating slot, and the space between described coating position and the outside coat of described optical fiber is filled with tack coat.The pigtail assembly structure that the present invention provides, the advantages such as its function realized is exactly the same with common pigtail assembly, has a stable performance simultaneously, and long-term reliability is high, and yield rate is high, and technique is simply, concordance, reproducible, low cost.The manufacture method of the pigtail assembly that the present invention provides, is suitable for mass and makes.

Description

A kind of pigtail assembly structure and manufacture method
Technical field
The present invention relates to field of optoelectronic devices, be mainly used in integrated optical device or the tail optical fiber system of fiber waveguide device Make, specifically, be a kind of pigtail assembly structure and manufacture method.
Background technology
Optical fiber is itself divided into three layers, and Chuan Guang region, center is fibre core, and diameter is about 6~60 microns;It is followed successively by cladding regions, According to optical fiber kind difference slightly difference, diameter is about 40~125um;Outermost layer is optical fiber coating, and this layer is soft material Matter, is mostly epoxy resin.Internal two-layer is that quartz material is indivisible, and coat can divest with quartz body, acts primarily as To protective effect.Existing tail optical fiber be applicable to integrated optical device the simple V-groove of many employings, U-type groove, dovetail groove, semicircle Optical fiber is fixed by groove or square groove etc., and whole bond area is also only limited to the groove of fixing optical fiber, and bond area is relatively Little, and along with the miniature requirement of opto-electronic device, the tile size for coupling output requires increasingly stricter, this also aggravates The risk of bonding reliability.Based on improving the consideration of this type of product reliability, the coat of the optical fiber that needs to be adhesively fixed, this Technology and structure are based especially on right and wrong in the opto-electronic device made by Lithium metaniobate material at traditional integrated optical device The most important, need the axial occasion for each passage tail optical fiber independent regulation of alignment also similarly for exporting more close-packed arrays It is all important.
The similar most application scenario of scheme proposed with this patent is fiber array, and this fiber array size is relatively big, Each passage can not independent regulation, so needing independent regulation and controlling the occasion of size inapplicable.
When stress that common pigtail assembly is produced by variations in temperature because of it or external tensile force, optical fiber easily loosens in groove Even coming off, use the product that this pigtail assembly makes, process environment screening test qualification rate is the highest, and long-term reliability is relatively Low, cause production cost high.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of pigtail assembly structure and manufacture method thereof, Solve prior art optical fiber in groove, easily loosen the problem even come off.
The purpose of the present invention implements by the following technical programs:
On the one hand, the invention provides a kind of pigtail assembly structure, it includes substrate and the optical fiber being connected with substrate, described On substrate, the installation direction along optical fiber is sequentially provided with coating position and locating slot, and described coating position is in described optical fiber installation side To radial direction there is the size bigger than described locating slot, nuditing fiber docks with described locating slot through described coating position, Space between described coating position and the outside coat of described optical fiber is filled with tack coat.
Preferably, described coating position and described locating slot are positioned at the upper surface of described substrate.
Preferably, described tack coat is more than described light along the thickness of the radial direction coated with adhesive of described optical fiber installation direction Fine radius, makes the cross section being more than half on described optical fiber be fixed by described tack coat.
Preferably, the height of described tack coat is equal with the upper level of described substrate.
Preferably, described substrate uses Lithium metaniobate material, silicon materials or the coefficient of expansion more to mate with optical fiber material One or more in material.Preferably, described coating position is step shape, it is preferable that described step shape is fixed with described Position groove is vertical;Or described coating position is the groove that diameter is more than the coat diameter of described outer fiber.
Preferably, the cross section of described locating slot is V-groove, U-type groove or dovetail groove.
On the other hand, present invention also offers the manufacture method of pigtail assembly, comprising:
Processing coating position and locating slot on substrate;
Optical fiber through described coating position and is docked with described locating slot;
Between described coating position and the outside coat of described optical fiber, fill colloidal materials form tack coat;
Postprocessing working procedures.
Preferably, described postprocessing working procedures includes the removal to described coat and cleaning.
Described removal technique includes: during by bonding fiber on substrate, divests a part of coat and forms nuditing fiber, naked Fine a diameter of 40~125 microns of exposure, part nuditing fiber the to be coarser than part of band coat so that nuditing fiber part is bonding In locating slot, the optical fiber with coat is then mutually bonding with the coating position of substrate;
Described cleaning includes: be carried out nuditing fiber part;
Preferably, described postprocessing working procedures also includes that the polishing to described substrate is cut;Enter including to the substrate of band tail optical fiber Row end surface grinding polishes, and segmentation forms independent pigtail assembly.
Described cutting technique includes: once complete the bonding of locating slot and coating carrying out the optical fiber after coat processes Part bonding after, need backing material and optical fiber along being parallel to fiber length and carrying out at certain interval point Cutting, form pigtail assembly one by one, wherein, each assembly comprises a substrate and an optical fiber.
The pigtail assembly structure that this patent provides, its function realized is exactly the same with common pigtail assembly, having property simultaneously Can be stable, the advantages such as long-term reliability is high, and yield rate is high, and technique is simple, concordance, reproducible, low cost.
The manufacture method of the pigtail assembly that this patent provides, is suitable for mass and makes.
Accompanying drawing explanation
Below according to drawings and Examples, the present invention is described in further detail.
Fig. 1 is the schematic diagram of a kind of pigtail assembly structure described in an embodiment;
Fig. 2 is the schematic diagram of a kind of pigtail assembly structure described in another embodiment.
Detailed description of the invention
By further illustrating the technological means and effect that the present invention taked by reaching predetermined goal of the invention, below in conjunction with Preferred embodiment, to according to the present invention propose a kind of pigtail assembly structure and manufacture method detailed description of the invention, feature and Its effect, describes in detail as follows.
As shown in Figure 1-2, on the one hand, the invention provides a kind of pigtail assembly structure, it include substrate 1 and with substrate 1 The optical fiber 2 connected, on described substrate, the installation direction along optical fiber is sequentially provided with coating position 12 and locating slot 11, described coating Position 12 has the size bigger than described locating slot 11 in the radial direction of described optical fiber installation direction, and nuditing fiber passes described painting Cover position 12 to dock with described locating slot 11, the space between described coating position 12 and the outside coat of described optical fiber 2 It is filled with tack coat 13.
Nuditing fiber docks with described locating slot 11 through described coating position 12, specifically, pass through ultraviolet glue or its His epoxide-resin glue is bonded in described locating slot and positions.Outside coating at described coating position 12 with described optical fiber 2 Space between Ceng is filled with tack coat 13, and major function is for improving bonding reliability, and buffering comes from tail optical fiber near user side That is brought pulls and shearing force.
Preferably, described coating position 12 and described locating slot 11 are positioned at the upper surface of described substrate 1.
Preferably, described tack coat 13 is more than described along the adhesive thickness of the radial direction coating of described optical fiber installation direction The radius of optical fiber 2, makes the cross section being more than half on described optical fiber 2 be fixed by described tack coat 13.
Preferably, the height of described tack coat 13 is equal with the upper level of described substrate.
Preferably, described substrate 1 uses Lithium metaniobate material or silicon materials, or other coefficients of expansion expand with fiber waveguide The material of coefficients match is as the backing material of fixing optical fiber, such as materials such as Lithium metaniobate, silicon, quartz.
Preferably, the cross section of described locating slot 11 is V-groove, U-type groove or dovetail groove.Direction along the placement of optical fiber Employing microtome or the depth and width using other photoetching processes etc. to carry out paddle-tumble, paddle-tumble and making are that nuditing fiber is firm Put into well and be advisable, may be multiple such as V-groove, U-type groove etc. as the slot cross-section shape formed.
Preferably, described coating position 12 is step shape, it is preferable that described step shape is vertical with described locating slot; The height of this step differs suitable into optical fiber coating radius with the upper surface of substrate.Or described coating position is that diameter is big Groove in the coat diameter of described outer fiber.
Preferably, the backing material 90-degree rotation of locating slot will be pulled, and use the method for corrosion or paddle-tumble to be coated The step at position 12 makes, and the height of this step differs suitable into optical fiber coating radius with the upper surface of substrate.
Optical fiber coating is removed cleaning cutting, forms good end face, under the microscope to naked fine and front step The substrate formulated positions, it is desirable to coat is near the front end of step, coat is overlapping with step rear portion, so as far as possible Rear carrying out bonding by naked fine part with groove leading portion respectively, band coat part carries out bonding with groove back segment.
The substrate of band tail optical fiber is carried out end surface grinding polishing, and segmentation forms independent pigtail assembly.
On the other hand, present invention also offers the manufacture method of pigtail assembly, comprising:
Processing coating position and locating slot on substrate;
Optical fiber through described coating position and is docked with described locating slot;
Between described coating position and described optical fiber, fill colloidal materials form tack coat;Wherein, the painting of optical fiber itself Cover material and be generally the mixing material of silicone rubber and epoxy resin, and for the binding agent one of bonding optical fiber with the tack coat of substrate As select epoxy resin glue or rubber-like glue.
The detailed step of said method refers to the concrete mode of above-mentioned a kind of pigtail assembly structure, is not repeating at this.
Postprocessing working procedures.
Preferably, described postprocessing working procedures includes the removal to described coat and cleaning.
Described removal technique includes: during by bonding fiber on substrate, divests a part of coat and forms nuditing fiber, naked Fine a diameter of 40~125 microns of exposure, part nuditing fiber the to be coarser than part of band coat so that nuditing fiber part is bonding In locating slot, the optical fiber with coat is then mutually bonding with the coating position of substrate;
Described cleaning includes: be carried out nuditing fiber part.
Preferably, described postprocessing working procedures also includes that the polishing to described substrate is cut.The substrate of band tail optical fiber is held Face grinding and polishing, segmentation forms independent pigtail assembly.Described cutting technique specifically includes: after carrying out coat process Optical fiber once complete the bonding of locating slot and coated portion bonding after, need backing material and optical fiber along being parallel to optical fiber Length direction and splitting at certain interval, forms pigtail assembly one by one, and wherein, each assembly comprises a lining The end and an optical fiber.
Optical fiber coating is removed cleaning cutting, forms good end face, under the microscope to naked fine and front step The substrate formulated positions, it is desirable to coat is near the front end of step, coat is overlapping with step rear portion, so as far as possible Rear carrying out bonding by naked fine part with groove leading portion respectively, band coat part carries out bonding with groove back segment.
This patent uses transverse cuts on base material to go out a step, and under the microscope to optical fiber and step overlapping point Glue, then exposure is fixing or adds heat fixation;Technique is simple, stable;Because optical fiber root has the fixing of certain length, it is subject at optical fiber When the stress produced to variations in temperature or external tensile force, can play and effectively buffer left and right, the extremely difficult tail optical fiber that is delivered to of these power is fixed Slot tail, greatly improves the long-term reliability of product.
The pigtail assembly structure that this patent provides, its function realized is exactly the same with common pigtail assembly, and this structure improves The external tensile force that pigtail assembly is tolerated, adds long-term reliability, and the device that improve applicable this kind of pigtail assembly is raw The yield rate produced, has a stable performance simultaneously, and long-term reliability is high, and technique is simple, concordance, reproducible, and low cost etc. is excellent Gesture.
The manufacture method of the pigtail assembly that this patent provides, is suitable for mass and makes.
Skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can be freely Combination, superposition.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (10)

1. a pigtail assembly structure, it includes substrate and the optical fiber being connected with substrate, it is characterised in that on described substrate along The installation direction of optical fiber is sequentially provided with coating position and locating slot, and described coating position has in the radial direction of described optical fiber installation direction Having the size bigger than described locating slot, nuditing fiber docks with described locating slot, in described coating through described coating position Space between position and the outside coat of described optical fiber is filled with tack coat.
2. pigtail assembly structure as claimed in claim 1, it is characterised in that described coating position and described locating slot are positioned at institute State the upper surface of substrate.
3. pigtail assembly structure as claimed in claim 2, it is characterised in that described tack coat is along described optical fiber installation direction The thickness of radial direction coated with adhesive more than the radius of described optical fiber, make on described optical fiber more than the cross section of half by described bonding Layer is fixing.
4. the pigtail assembly structure as described in one of claim 1-3, it is characterised in that the height of described tack coat and described lining The upper level at the end is equal.
5. the pigtail assembly structure as described in one of claim 1-4, it is characterised in that described substrate employing Lithium metaniobate material, One or more in the material that silicon materials or the coefficient of expansion more mate with optical fiber material.
6. the pigtail assembly structure as described in one of claim 1-5, it is characterised in that described coating position is step shape, Preferably, described step shape is vertical with described locating slot;Or described coating position is that diameter is more than described outer fiber The groove of coat diameter.
7. the pigtail assembly structure as described in one of claim 1-6, it is characterised in that the cross section of described locating slot be V-groove, U-type groove or dovetail groove.
8. a manufacture method for one of claim 1-7 described pigtail assembly structure, comprising:
Processing coating position and locating slot on substrate;
Optical fiber through described coating position and is docked with described locating slot;
Tack coat is filled between described coating position and the outside coat of described optical fiber;
Postprocessing working procedures.
9. method as claimed in claim 8, it is characterised in that described postprocessing working procedures include the removal to described coat and Clean:
Described removal technique includes: during by bonding fiber on substrate, divests a part of coat and forms nuditing fiber, exposed light Fine a diameter of 40~125 microns, part nuditing fiber the to be coarser than part of band coat so that nuditing fiber part is bonded in fixed In the groove of position, the optical fiber with coat is then mutually bonding with the coating position of substrate;
Described cleaning includes: be carried out nuditing fiber part.
10. method as claimed in claim 8, it is characterised in that described postprocessing working procedures also includes the polishing to described substrate Cutting: include carrying out the substrate of band tail optical fiber end surface grinding polishing, segmentation forms independent pigtail assembly.
CN201610855077.6A 2016-09-27 2016-09-27 A kind of pigtail assembly structure and manufacture method CN106291823A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1035563A (en) * 1988-01-15 1989-09-13 纳幕尔杜邦公司 Fiber optic connector assembly and manufacture method thereof
US20030128931A1 (en) * 2002-01-04 2003-07-10 Hyun-Ki Kim Optical fiber block
CN1438773A (en) * 2002-02-14 2003-08-27 住友电气工业株式会社 Optical-fiber array
CN1564953A (en) * 2001-09-07 2005-01-12 希普雷公司 Glass bonded fiber array and method for the fabrication thereof
CN101051105A (en) * 2006-04-03 2007-10-10 浙江博创科技有限公司 Method for producing novel high precision optical fiber array
CN101398513A (en) * 2007-09-26 2009-04-01 博创科技股份有限公司 Optical fiber array device of cramped construction and method for manufacturing same
CN105589223A (en) * 2016-03-10 2016-05-18 哈尔滨工程大学 Multi-core optical fiber beam splitter with phase modulation function

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1035563A (en) * 1988-01-15 1989-09-13 纳幕尔杜邦公司 Fiber optic connector assembly and manufacture method thereof
CN1564953A (en) * 2001-09-07 2005-01-12 希普雷公司 Glass bonded fiber array and method for the fabrication thereof
US20030128931A1 (en) * 2002-01-04 2003-07-10 Hyun-Ki Kim Optical fiber block
CN1438773A (en) * 2002-02-14 2003-08-27 住友电气工业株式会社 Optical-fiber array
CN101051105A (en) * 2006-04-03 2007-10-10 浙江博创科技有限公司 Method for producing novel high precision optical fiber array
CN101398513A (en) * 2007-09-26 2009-04-01 博创科技股份有限公司 Optical fiber array device of cramped construction and method for manufacturing same
CN105589223A (en) * 2016-03-10 2016-05-18 哈尔滨工程大学 Multi-core optical fiber beam splitter with phase modulation function

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