CN102053306B - A kind of packaging process of polarization-maintaining fiber coupler - Google Patents
A kind of packaging process of polarization-maintaining fiber coupler Download PDFInfo
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- CN102053306B CN102053306B CN201010569971.XA CN201010569971A CN102053306B CN 102053306 B CN102053306 B CN 102053306B CN 201010569971 A CN201010569971 A CN 201010569971A CN 102053306 B CN102053306 B CN 102053306B
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Abstract
The invention discloses a kind of packaging process of polarization-maintaining fiber coupler, adopt the extinction ratio of the polarization-maintaining fiber coupler of existing packaging technology within the scope of full temperature to change very greatly in order to solve, the problem of the request for utilization in temperature changing environment cannot be met.Specifically comprise: the polarization maintaining optical fibre after fused biconical taper is put into quartz base plate; The first ultra-violet curing glue in polarization maintaining optical fibre coating and quartz base plate joint point, and adopt ultraviolet light curing; The second ultra-violet curing glue on the joint point of the naked polarization maintaining optical fibre except pyrometric cone district and quartz base plate, and adopt ultraviolet light curing; Quartz base plate after solidification is inserted in quartz ampoule, the first heat-curable glue on the conical region place point at quartz ampoule two ends, and is heating and curing; Quartz ampoule after solidification is inserted in stainless-steel tube, at the conical region at stainless-steel tube two ends, and the second heat-curable glue on gap place point between stainless-steel tube and quartz ampoule, and be heating and curing.
Description
Technical field
The present invention relates to optical fiber sensing technology, particularly relate to a kind of packaging process of polarization-maintaining fiber coupler.
Background technology
Polarization-maintaining fiber coupler is the Primary Component of various interferometric optical fiber sensor and coherent communication, one of core component of optical fibre gyro, in the inertial navigation being widely used in land fighting vehicle, various naval vessel, various aerocraft and strategy and tactics weapon and gesture stability.
The preparation method of polarization-maintaining fiber coupler is the coupled wave theory based on light, in order to realize luminous energy intercoupling between two or multifiber fibre core, coupled zone generally by fused biconical taper technique, make two or multifiber fibre core as far as possible close, close distance is determined by the splitting ratio needed.Make two or multifiber finally close as a whole by fused biconical taper technology, fibre core closely.Because pyrometric cone district part is bare fibre, very fragile, therefore practical polarization-maintaining fiber coupler has packaging protection, is fixed the performance parameter of device.
The packaging technology of current polarization-maintaining fiber coupler still continues the packaging process of general single mode coupling mechanism, and the optical fiber after fused biconical taper is put into protective sleeve, cured resin is injected the cavity in protective sleeve, and fills up cavity; When resin is cured, obtain being combined into overall coupling mechanism with optical fibre core.Due to important parameter one extinction ratio of polarization-maintaining fiber coupler, the change of counter stress is very responsive.Therefore adopt the polarization-maintaining fiber coupler of this packaging technology extinction ratio of (-45 DEG C ~ 70 DEG C) within the scope of full temperature to change very greatly, the request for utilization in temperature changing environment cannot be met.
Summary of the invention
The invention provides a kind of packaging process of polarization-maintaining fiber coupler, adopt the extinction ratio of the polarization-maintaining fiber coupler of existing packaging technology within the scope of full temperature to change very greatly in order to solve, the problem of the request for utilization in temperature changing environment cannot be met.
The inventive method comprises:
A packaging process for polarization-maintaining fiber coupler, comprises step:
A, the polarization maintaining optical fibre after fused biconical taper is put into quartz base plate;
B, in polarization maintaining optical fibre coating and quartz base plate joint point the first ultra-violet curing glue, and adopt ultraviolet light curing;
C, on the joint point of the naked polarization maintaining optical fibre except pyrometric cone district and quartz base plate the second ultra-violet curing glue, and adopt ultraviolet light curing;
D, the quartz base plate after solidification is inserted in quartz ampoule, the first heat-curable glue on the conical region place point at quartz ampoule two ends, and being heating and curing;
E, the quartz ampoule after solidification is inserted in stainless-steel tube, at the conical region at stainless-steel tube two ends, and the second heat-curable glue on gap place point between stainless-steel tube and quartz ampoule, and be heating and curing.
Further, described quartz base plate is quartzy trapezoidal substrate or quartzy arc substrate.
Further, described first ultra-violet curing glue is the ultra-violet curing glue that after solidification, hardness D is greater than 80.
Further, described second ultra-violet curing glue is the ultra-violet curing glue that after solidification, hardness D is less than 50.
Further, described first heat-curable glue is greater than 80, the heat-curable glue that time more than 150 DEG C, solidification rate is less than 1 minute for solidifying rear hardness D.
Further, described second heat-curable glue is less than 50, the heat-curable glue that time more than 70 DEG C, solidification rate is less than 2 hours for solidifying rear hardness D.
Beneficial effect of the present invention is as follows:
The present invention adopts multiple solidification glue to encapsulate polarization-maintaining fiber coupler, and the position that the various solidification glue of strict regulations acts on, adopt this packaging process, the advantage of heterogeneity encapsulation glue can be played simultaneously, polarization-maintaining fiber coupler after adopting the present invention not only can make encapsulation has good mechanical property, and can make its within the scope of full temperature (-45 DEG C ~ 70 DEG C), polarization crosstalk variable quantity is less than 3dB.
Accompanying drawing explanation
Fig. 1 be the packaging process of polarization-maintaining fiber coupler in the present invention realize principle flow chart;
Fig. 2 is various solidification glue active position schematic diagram when encapsulating polarization-maintaining fiber coupler in the present invention;
Fig. 3 is the structural representation of the polarization-maintaining fiber coupler in the present invention after encapsulation.
Embodiment
The invention provides a kind of packaging process of polarization-maintaining fiber coupler, may be used for the polarization-maintaining fiber coupler and the thin footpath polarization-maintaining fiber coupler that encapsulate various operation wavelength, adopt this packaging process, the advantage of heterogeneity encapsulation glue can be played simultaneously, make the polarization-maintaining fiber coupler after encapsulation have good environment and mechanical adaptability.
Refer to Fig. 1 and Fig. 2, Fig. 1 be the packaging process of polarization-maintaining fiber coupler in the present invention realize principle flow chart, Fig. 2 is various solidification glue active position schematic diagram when encapsulating polarization-maintaining fiber coupler in the present invention, and the packaging process of polarization-maintaining fiber coupler of the present invention mainly comprises the steps:
Step S10, the polarization maintaining optical fibre after fused biconical taper is put into quartz base plate;
Wherein, quartz base plate is quartzy trapezoidal substrate or quartzy arc substrate.
First ultra-violet curing glue on step S11, region 1 place point in fig. 2, and adopt ultraviolet light curing;
Wherein, region 1 place is polarization maintaining optical fibre coating and quartz base plate joint; First ultra-violet curing glue is the ultra-violet curing glue that after solidification, hardness D is greater than 80.
Second ultra-violet curing glue on step S12, region 2 place point in fig. 2, and adopt ultraviolet light curing;
Wherein, region 2 place is the joint of naked polarization maintaining optical fibre except pyrometric cone district and quartz base plate; Second ultra-violet curing glue is the ultra-violet curing glue that after solidification, hardness D is less than 50.
Step S13, the quartz base plate after solidification is inserted in quartz ampoule, the first heat-curable glue on region 3 place point in fig. 2, and being heating and curing;
Wherein, region 3 place is the conical region place at quartz ampoule two ends; First heat-curable glue is greater than 80, the heat-curable glue that time more than 150 DEG C, solidification rate is less than 1 minute for solidifying rear hardness D.
Step S14, be inserted in stainless-steel tube by the quartz ampoule after solidification, the second heat-curable glue on region 4 place point in fig. 2, and after being heating and curing, can obtain the polarization-maintaining fiber coupler after encapsulating, the structure of the polarization-maintaining fiber coupler after encapsulation as shown in Figure 3.
Wherein, region 4 place is the conical region at stainless-steel tube two ends, and the gap place between stainless-steel tube and quartz ampoule; Second heat-curable glue is less than 50, the heat-curable glue that time more than 70 DEG C, solidification rate is less than 2 hours for solidifying rear hardness D.
Below in conjunction with specific embodiment, the present invention will be further described in detail.
Embodiment one:
The polarization maintaining optical fibre adopted in the present embodiment is the panda type polarization-preserving fiber of coat diameter 250 μm; Quartz base plate adopts quartzy trapezoidal substrate, and its groove width is 0.65mm, and external diameter is 1.6mm, and length is 27mm; Quartz ampoule internal diameter is 1.7mm, and external diameter is 2.3mm, and length is 27mm; The internal diameter of stainless-steel tube is 2.7mm, and external diameter is 3mm, and length is 30mm.
In the present embodiment, the packaging process of polarization-maintaining fiber coupler specifically comprises the steps:
Step S20, the polarization maintaining optical fibre after fused biconical taper is put into quartzy trapezoidal substrate.
Step S21, in polarization maintaining optical fibre coating and quartz base plate joint point, model is the ultra-violet curing glue of EPO-TEKOG115, and adopts ultraviolet light curing 1 minute.
Step S22, on the joint point of the naked polarization maintaining optical fibre except pyrometric cone district and quartz base plate, model is the ultra-violet curing glue of EPO-TEKOG134, and adopts ultraviolet light curing 50 seconds.
Step S23, by solidification after the trapezoidal substrate of quartz be inserted in quartz ampoule.
Step S24, on the conical region place point at quartz ampoule two ends, model is the heat-curable glue of EPO-TEKOH105, and solidifies 1 minute at 150 DEG C.
Step S25, by solidification after quartz ampoule be inserted in stainless-steel tube.
Step S26, conical region at stainless-steel tube two ends, and on gap place point between stainless-steel tube and quartz ampoule, model is the heat-curable glue of MASTERSIL151, and solidify after 2 hours at 70 DEG C, the polarization-maintaining fiber coupler after encapsulating can be obtained.
Embodiment two:
The polarization maintaining optical fibre adopted in the present embodiment is the panda type polarization-preserving fiber of coat diameter 160 μm, and quartz base plate adopts quartzy trapezoidal substrate, and its groove width is 0.45mm, and external diameter is 1.4mm, and length is 24mm; Quartz ampoule internal diameter is 1.5mm, and external diameter is 2.1mm, and length is 24mm; The internal diameter of stainless-steel tube is 2.5mm, and external diameter is 2.8mm, and length is 26mm.
In the present embodiment, the packaging process of polarization-maintaining fiber coupler specifically comprises the steps:
Step S30, the polarization maintaining optical fibre after fused biconical taper is put into quartzy trapezoidal substrate.
Step S31, in polarization maintaining optical fibre coating and quartz base plate joint point, model is the ultra-violet curing glue of EPO-TEKOG142, and adopts ultraviolet light curing 1.5 minutes.
Step S32, on the joint point of the naked polarization maintaining optical fibre except pyrometric cone district and quartz base plate, model is the ultra-violet curing glue of EPO-TEKOG127-4, and adopts ultraviolet light curing 40 seconds.
Step S33, by solidification after the trapezoidal substrate of quartz be inserted in quartz ampoule.
Step S34, on the conical region place point at quartz ampoule two ends, model is the heat-curable glue of EPO-TEK330, and solidifies 1 minute at 150 DEG C.
Step S35, by solidification after quartz ampoule be inserted in stainless-steel tube.
Step S36, conical region at stainless-steel tube two ends, and on gap place point between stainless-steel tube and quartz ampoule, model is the heat-curable glue of MASTERSIL151, and solidify after 2 hours at 70 DEG C, the polarization-maintaining fiber coupler after encapsulating can be obtained.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (2)
1. a packaging process for polarization-maintaining fiber coupler, is characterized in that, comprises step:
A, the polarization maintaining optical fibre after fused biconical taper is put into quartz base plate;
B, in polarization maintaining optical fibre coating and quartz base plate joint point the first ultra-violet curing glue, and adopt ultraviolet light curing, wherein said first ultra-violet curing glue is the ultra-violet curing glue that after solidification, hardness D is greater than 80;
C, on the joint point of the naked polarization maintaining optical fibre except pyrometric cone district and quartz base plate the second ultra-violet curing glue, and adopt ultraviolet light curing, wherein said second ultra-violet curing glue is the ultra-violet curing glue that after solidification, hardness D is less than 50;
D, by solidification after quartz base plate be inserted in quartz ampoule, the first heat-curable glue on the conical region place point at quartz ampoule two ends, and be heating and curing, wherein said first heat-curable glue is greater than 80, the heat-curable glue that time more than 150 DEG C, solidification rate is less than 1 minute for solidifying rear hardness D;
E, by solidification after quartz ampoule be inserted in stainless-steel tube, at the conical region at stainless-steel tube two ends, and the second heat-curable glue on gap place point between stainless-steel tube and quartz ampoule, and be heating and curing, wherein said second heat-curable glue is less than 50, the heat-curable glue that time more than 70 DEG C, solidification rate is less than 2 hours for solidifying rear hardness D.
2. the method for claim 1, is characterized in that, described quartz base plate is quartzy trapezoidal substrate or quartzy arc substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010569971.XA CN102053306B (en) | 2010-12-02 | 2010-12-02 | A kind of packaging process of polarization-maintaining fiber coupler |
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| CN201010569971.XA CN102053306B (en) | 2010-12-02 | 2010-12-02 | A kind of packaging process of polarization-maintaining fiber coupler |
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| CN102053306A CN102053306A (en) | 2011-05-11 |
| CN102053306B true CN102053306B (en) | 2016-01-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145349B (en) * | 2013-03-29 | 2014-12-31 | 武汉光迅科技股份有限公司 | Manufacture method of low-stress polarization maintaining optical fibre applied to coupling |
| CN105319425B (en) * | 2014-07-09 | 2018-06-26 | 北京自动化控制设备研究所 | A kind of packaging method of full-fiber quarter wave plate |
| CN105938221B (en) * | 2016-06-20 | 2019-06-21 | 大族激光科技产业集团股份有限公司 | Optical fiber welding point coats packaging tool and optical fiber welding point coats packaging method |
| CN107515018A (en) * | 2017-08-09 | 2017-12-26 | 武汉理工大学 | Kagome Hollow-Core Photonic Crystal Fibers sensor and sensor-based system |
| CN109870774A (en) * | 2019-03-08 | 2019-06-11 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | A kind of 2 core of all-in-one micro decaying cable assembly and manufacture craft |
| CN114323093B (en) * | 2021-12-13 | 2023-11-03 | 中国航空工业集团公司北京长城计量测试技术研究所 | Adhesive protection method for quartz tube structure optical fiber sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243680A (en) * | 1992-06-01 | 1993-09-07 | Soane Technologies, Inc. | Package for optical fiber couplers |
| CN101408644A (en) * | 2008-11-19 | 2009-04-15 | 中国航天时代电子公司 | Method for preparing high-reliability optical fiber coupler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004295157A (en) * | 2004-07-23 | 2004-10-21 | Japan Aviation Electronics Industry Ltd | Method for manufacturing small-sized composite type optical fiber coupler |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243680A (en) * | 1992-06-01 | 1993-09-07 | Soane Technologies, Inc. | Package for optical fiber couplers |
| CN101408644A (en) * | 2008-11-19 | 2009-04-15 | 中国航天时代电子公司 | Method for preparing high-reliability optical fiber coupler |
Non-Patent Citations (1)
| Title |
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| 光纤陀螺用小尺寸高温度稳定性保偏光纤耦合器的研制;黄榜才等;《光子学报》;20080229;第37卷(第2期);第243页1.2.2高温度稳定性封装工艺试验部分及图3 * |
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