CN1270322A - Multi-unit fused optical fibre coupler, its making method and equipment for implementing the method - Google Patents
Multi-unit fused optical fibre coupler, its making method and equipment for implementing the method Download PDFInfo
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- CN1270322A CN1270322A CN 00115742 CN00115742A CN1270322A CN 1270322 A CN1270322 A CN 1270322A CN 00115742 CN00115742 CN 00115742 CN 00115742 A CN00115742 A CN 00115742A CN 1270322 A CN1270322 A CN 1270322A
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- optical fiber
- optical fibre
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Abstract
A multi-unit fused optical fibre coupler features that two or more groups of optical fibres to form coupling areas are fixed onto a substrate with low expansion coefficient, than sealed in a casing, and finally fixed in vibration-damping protective sleeve by elastic adhesive. It is made up on a bench, on which there are multiple groups of optical fibre sucking disks which can be individually rotated and translated. Its advantages are only one substrate, small size, light weight, low cost and convenient application.
Description
The invention belongs to fused optical fibre coupler, a kind of multi-unit fused optical fibre coupler and manufacture method thereof of more specifically saying so and the coupling mechanism making platform of implementing this method.
Fused optical fibre coupler is to utilize two or two above optical fiber, after foreskin is removed at the position in the central, under the condition of being close to mutually, be heated to the bipyramid coupled zone of a dumbbell shaped of molten condition stretching formation, as shown in Figure 1, if inject light signal P at a port one 13 of any optical fiber
I1, this signal just progressively leaves fiber cores 105 after entering the coupled zone, and enters fibre cladding 101 transmission.Before light signal leaves the coupled zone, progressively get back to the intracardiac transmission of fiber cores again, and overline distributes its energy P in all fiber cores 112,113
01, P
02Realized of the coupling of optical fiber of optical signals like this, coupling ratio P to multifiber
01/ P
02Can adjust by changing tensile elongation L.
The manufacturing of fused optical fibre coupler is at present made on the platform (as shown in Figure 2) at a kind of fused optical fibre coupler and is finished.This machine comprises at least one movably well heater 201, the a pair of optical fiber sucker 202,203 that can once fix several optical fiber and move linearly by instruction, the optical fiber sucker that at least one provides optical fiber to rotate, the sucker 204 of a removable substrate, with the control corresponding system, in manufacture process, have at least an optical fiber to be injected into flashlight in every group of optical fiber and at least one optical fiber carries out dynamic monitoring at light exit side mouth access power meter, so that the control pulling process makes coupling mechanism reach predetermined performance index.
Often need the unit fiber coupler that a plurality of performances are identical or close to combine in the practicality and constitute a polynary fiber coupler.Binary fiber coupler in the past as shown in Figure 3, wherein each unit coupling mechanism need have two shells to be nested together to encapsulate, interior cover 301 is used for sealing, overcoat 302 is used to keep away and shakes, and also wants a multicomponent device fixed housing 303 at last.Therefore volume is big, the cost height.
The coupling mechanism that the purpose of this invention is to provide a kind of multi-unit fused optical fibre coupler and manufacture method thereof and implement this method is made platform, and to satisfy in the practicality the needs of polynary fiber coupler, it is big to solve volume, the difficult problem that cost is high.
Main conception of the present invention is:
A. the coupled zone with two or more fiber couplers directly is fixed on the same substrate, forms single chip architecture, is sealed in then in the same shell;
B. the coupled zone of two or more fiber couplers makes to draw simultaneously on the platform at same coupling mechanism and forms.
Specifically the object of the present invention is achieved like this:
Multi-unit fused optical fibre coupler is characterized in that comprising:
A. form the optical fiber of coupled zones more than two groups or two groups;
B. the substrate of a low thermal coefficient of expansion;
C. capsul that coupled zone and surrounding environment atmosphere are separated;
D. vibration damping shell that coupled zone and ambient vibration source are separated;
The position, coupled zone of described optical fiber directly is fixed in the substrate, and this substrate is sealed in the described capsul, and described capsul directly is fixed on again in the described vibration damping shell.
Described optical fiber is single-mode fiber or multimode optical fiber.
Described coupled zone can be the twisting structure, also can be non-twisting structure.
Described twisting structure can be the elasticity twisting structure that twisted fiber forms after the coupled zone forms, also can be the non-resilient twisting structure that twisted fiber forms when the coupled zone forms, or form the non-resilient twisting structure that elasticity twisting structure is annealed and formed again later in the coupled zone.
Described substrate can be selected the solid material of the low thermal coefficient of expansion of positive temperature coefficient (PTC)s such as quartz, invar or pottery or negative temperature coefficient for use.
The transversal section of the groove of described substrate can be rectangle, trapezoidal, circle or V-arrangement.
The profile of described substrate can be cylinder, semicircle pipe or prismatic fixing rectangular.
Described vibration damping shell can adopt inwall to post the metal shell of elasticity absorbing material, also can adopt the suspended structure of the optical fiber self-supporting that outer two end optical fiber of substrate and can fix.
The method for making of described multi-unit fused optical fibre coupler is characterized in that it may further comprise the steps:
A. the optical fiber central part is removed foreskin;
B. putting the fiber groupings of central part peeling into coupling mechanism makes in the optical fiber sucker of platform;
Every group of optical fiber is adjacent to mutually at the peeling position;
D. start coupling mechanism and make platform, the optical fiber peeling is adjacent to position optical fiber delivers to the high-temperature region heating that coupling mechanism is made platform;
E. an end of arbitrary optical fiber or multifiber injects flashlight in every group of optical fiber, and other end access power meter or spectrometer carry out dynamic monitoring;
F. drive optical fiber sucker stretching optical fiber, every group of optical fiber is fused together in heating position mutual understanding forms the bipyramid coupled zone, and control its tensile elongation and reach and give fixed coupling index;
G. rotate every group of optical fiber respectively by the sub-optical fibre sucker, the angle that the coupled zone is become kink structure and control to be rotated reaches predetermined coupling index;
H. all bipyramid coupled zones are embedded in the substrate groove;
I. the two ends and the substrate of bipyramid are fixed, made the coupled zone be free overhung construction;
J. two end optical fiber positions after the coupled zone being fixed together with substrate are fixed on the capsul, make substrate be free overhung construction, or directly are fixed in capsul and the vibration damping shell;
Described being adjacent to mutually can be realized by every group of optical fiber of twisting, also can realize by certain anchor clamps.
The fixing of described bipyramid and substrate can adopt the epoxy resin gummed, also can adopt metal solder or laser bonding.
Described sealing can be adopted the method for epoxy resin, welding or its combination.
Employed coupling mechanism is made platform in the multi-unit fused optical fibre coupler method for making, comprise optical fiber sucker, substrate sucker, movably well heater, light signal and input thereof, output, power detection, computer and control system thereof, it is characterized in that said optical fiber sucker has the functions of organizing each group optical fiber in the optical fiber of freely rotating and stretch more, it can place many group optical fiber, makes once forming the optical fiber coupled zone that isolates mutually more than two or two on the platform at coupling mechanism.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1, the fundamental diagram that fiber coupler forms.
Fig. 2, existing fused optical fibre coupler is made the structural representation of platform.
Fig. 3, existing double base fiber coupler structural representation.
Fig. 4, double base fiber coupler structural representation of the present invention.
The coupling mechanism that uses when Fig. 5, double base preparing fiber coupler of the present invention is made the configuration of optical fiber sucker and the work synoptic diagram of platform.
Fig. 6, the coupled zone of two groups of optical fiber is with fixing one of the synoptic diagram of substrate.
Fig. 7, the coupled zone of two groups of optical fiber with substrate fixedly synoptic diagram two.
Structural representation after Fig. 8, binary fiber coupler seal with capsul.
Fig. 9, binary fiber coupler structure cross-sectional schematic.
For narrating for simplicity, existing only with the structure and the method for making of binary fiber coupler, the embodiment and the accompanying drawing thereof that reach the equipment of implementing method for making illustrate design of the present invention.
Polynary fiber coupler possible constructions of the present invention double base fiber coupler shown in Figure 4 illustrates.405,406 is the optical fiber pigtail of a fiber coupler unit, and 407,408 is the optical fiber pigtail of another fiber coupler unit.401,402 coupled zones that are respectively these two fiber coupler units, two coupled zones that separate are fixed on the same substrate 403, and are sealed in the same shell that is nested together by interior cover 403 and overcoat 404.The present invention has overcome the shortcoming of conventional art, and clearly, it has dwindled volume greatly, and cost is also corresponding have been reduced.Thereby multi-unit fused optical fibre coupler of the present invention, have advantages such as volume is little, in light weight, cost is low, easy to use.
It only is that the optical fiber sucker is made through the preparing fiber coupler platform of improved that double base fiber coupler of the present invention can adopt, and the layout of its optical fiber sucker as shown in Figure 5.
The manufacture method and the process of binary fiber coupler are as follows: 501,502 is first group of optical fiber, and 503,504 is second group of optical fiber, and two groups of optical fiber are fixed in a pair of optical fiber sucker 505 and 508.Each optical fiber sucker constitutes by two sub-suckers, 511,512 be respectively two groups of optical fiber by the bare fibre position of peelling off foreskin and being close to mutually, the sub-sucker 507 of optical fiber and 509 is fixed two groups of optical fiber simultaneously, the sub-sucker 506 of optical fiber is fixed a group in two groups of optical fiber, and the sub-sucker 510 of optical fiber is fixed another group in two groups of optical fiber.Sub-sucker 506 and 510 has independent rotation and translation functions.In the manufacture process, each group optical fiber abuts against each other after foreskin is removed in the central part record, and stretching lying against in sucker 506,507,509 and 510, in two groups of optical fiber central parts 511 of heater heats and 512, drive optical fiber sucker 505 and 508 counter motions then, so that stretching optical fiber heating position stops to stretch after the light signal coupling reaches a certain goal-selling.Close sub-sucker 507 then and hold in two groups of optical fiber one group 503, one side of 504, make it freely to rotate, rotate and the sub-sucker 506 of translation, adjust output optical signal power P '
01, P '
02, make it hit the target, close one side that sub-sucker 509 holds another group 501 and 502 in two groups of optical fiber then, make it freely to rotate, rotate and the sub-sucker 510 of translation, adjust output optical signal power P
01And P
02, make it hit the target, after finishing above adjustment, the position, coupled zone of two groups of optical fiber is fixed with substrate, as shown in Figure 6 and Figure 7.Then two groups of optical fiber are sealed with capsul, as shown in Figure 8, can two ends and optical fiber adopt sealed filling material closely to seal in the peeling position, can are sealed with a fiber optic protection shell at last again.Protecting sheathing and optical fiber are having the foreskin position to fix with soft elastic gum 702.Fig. 9 is two yuan of fiber coupler structure cross-sectional schematic.
With epoxy resin 606 and 609 position, coupled zone 607,608 and the substrate 605 of two yuan of optical fiber are fixed; use capsul 701 and soft glue 702 with its sealing then; its two ends put the soft collar 908 respectively; put filled gold pipe 909; and weld by solder joint 906 with filled gold joint 905; be inserted in stainless steel protection sleeve pipe 907 at last, having the foreskin position stainless steel protection sleeve pipe 907 is fixing with optical fiber 901 with soft elastic gum 902 at optical fiber.
The method for making of polynary fiber coupler and polynary preparing fiber coupler platform thereof can be followed the prescribed rules, and are the complex structure point, and making step is more, is understandable, so do not repeat them here.
Claims (12)
1, a kind of multi-unit fused optical fibre coupler is characterized in that comprising:
A. form the optical fiber of coupled zones more than two groups or two groups;
B. the substrate of a low thermal coefficient of expansion;
C. capsul that coupled zone and surrounding environment atmosphere are separated;
D. vibration damping shell that coupled zone and ambient vibration source are separated;
The position, coupled zone of described optical fiber directly is fixed in the substrate groove, and this substrate is sealed in the described capsul, and described capsul directly is fixed on again in the described vibration damping shell.
2, multi-unit fused optical fibre coupler according to claim 1 is characterized in that described optical fiber is single-mode fiber or multimode optical fiber.
3, multi-unit fused optical fibre coupler according to claim 1 is characterized in that said coupled zone can be the twisting structure, also can be non-twisting structure.
4, multi-unit fused optical fibre coupler according to claim 1 is characterized in that said twisting structure can be an elasticity twisting structure, also can be non-resilient twisting structure.
5, multi-unit fused optical fibre coupler according to claim 1 is characterized in that said substrate can select the solid material of the low thermal coefficient of expansion of positive temperature coefficient (PTC)s such as quartz, invar or pottery or negative temperature coefficient for use.
6, multi-unit fused optical fibre coupler according to claim 5, the transversal section that it is characterized in that described substrate groove can be rectangle, trapezoidal, semicircle or V-arrangement.
7, multi-unit fused optical fibre coupler according to claim 1, the profile that it is characterized in that described substrate can be cylinder, semicircle pipe or prismatic fixing rectangular.
8, multi-unit fused optical fibre coupler according to claim 1 is characterized in that the structure that described vibration damping shell can adopt elasticity absorbing material and capsul to separate, and also can adopt the suspended structure of optical fiber self-supporting.
9, the method for making of multi-unit fused optical fibre coupler according to claim 1 is characterized in that may further comprise the steps:
A. the optical fiber central part is removed foreskin;
B. putting the fiber groupings of central part peeling into coupling mechanism makes in the optical fiber sucker of platform;
Every group of optical fiber is adjacent to mutually at the peeling position;
D. start coupling mechanism and make platform, the optical fiber peeling is adjacent to the position delivers to the high-temperature region heating that coupling mechanism is made platform;
E. an end of arbitrary optical fiber injects flashlight in every group of optical fiber, and other end access power meter carries out dynamic monitoring;
F. drive optical fiber sucker stretching optical fiber, make every group of fiber fuse together and form the bipyramid coupled zone, and control its tensile elongation and reach and give fixed coupling index;
G. rotate every group of optical fiber respectively by the sub-optical fibre sucker, the angle that the coupled zone is become kink structure and control to be rotated reaches predetermined coupling index;
H. all bipyramid coupled zones are embedded in the substrate groove;
I. the two ends and the substrate of bipyramid are fixed;
J. the coupled zone is fixed in the capsul together with substrate;
K. capsul is fixed in the vibration damping shell.
10, the multi-unit fused optical fibre coupler method for making of stating according to claim 9 is characterized in that described being adjacent to mutually can realize by every group of optical fiber of twisting, also can realize by certain anchor clamps.
11, the multi-unit fused optical fibre coupler method for making of stating according to claim 9 is characterized in that described sealing can adopt the method for epoxy resin, welding or its combination.
12, employed coupling mechanism is made platform in the multi-unit fused optical fibre coupler method for making of stating according to claim 9, comprise optical fiber sucker, substrate sucker, movably well heater, light signal and input thereof, output, power detection, computer and control system thereof, it is characterized in that said optical fiber sucker is to contain the optical fiber suckers of organizing the sub-optical fibre sucker of rotatable and translation more, can place many group optical fiber, this coupling mechanism is made platform can once form the optical fiber coupled zone that keeps apart mutually more than two or two, and is fixed in the same substrate groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115742 CN1270322A (en) | 2000-05-18 | 2000-05-18 | Multi-unit fused optical fibre coupler, its making method and equipment for implementing the method |
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|---|---|---|---|
| CN 00115742 CN1270322A (en) | 2000-05-18 | 2000-05-18 | Multi-unit fused optical fibre coupler, its making method and equipment for implementing the method |
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| CN1270322A true CN1270322A (en) | 2000-10-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321338C (en) * | 2004-02-26 | 2007-06-13 | 科毅光电股份有限公司 | Pre mixing type device for melting fiber coupler and method |
| CN101408644B (en) * | 2008-11-19 | 2010-04-07 | 北京航天时代光电科技有限公司 | Method for preparing high-reliability optical fiber coupler |
| CN104090338A (en) * | 2014-07-31 | 2014-10-08 | 光库通讯(珠海)有限公司 | Coupler and manufacturing method thereof |
| CN104238016A (en) * | 2014-05-19 | 2014-12-24 | 深圳朗光科技有限公司 | Optical fiber coupler, manufacturing method of optical fiber couplers and detection method for packaging efficacy losing of optical fiber couplers |
| CN109073831A (en) * | 2016-04-15 | 2018-12-21 | 株式会社藤仓 | The manufacturing method of fiber optic protection construction and optical element |
| CN113114364A (en) * | 2021-04-09 | 2021-07-13 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
| CN115236800A (en) * | 2022-06-29 | 2022-10-25 | 昂纳信息技术（深圳）有限公司 | Optical fiber coupler and manufacturing method thereof |
-
2000
- 2000-05-18 CN CN 00115742 patent/CN1270322A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321338C (en) * | 2004-02-26 | 2007-06-13 | 科毅光电股份有限公司 | Pre mixing type device for melting fiber coupler and method |
| CN101408644B (en) * | 2008-11-19 | 2010-04-07 | 北京航天时代光电科技有限公司 | Method for preparing high-reliability optical fiber coupler |
| WO2010057352A1 (en) * | 2008-11-19 | 2010-05-27 | 北京航天时代光电科技有限公司 | Method for preparing highly reliable optical fiber coupler |
| EA018957B1 (en) * | 2008-11-19 | 2013-12-30 | Бэиджинг Аэроспейс Таймз Оптикал-Электроник Текнолэджи Ко., Лтд. | Method for preparing highly reliable optical fiber coupler |
| CN104238016A (en) * | 2014-05-19 | 2014-12-24 | 深圳朗光科技有限公司 | Optical fiber coupler, manufacturing method of optical fiber couplers and detection method for packaging efficacy losing of optical fiber couplers |
| CN104090338A (en) * | 2014-07-31 | 2014-10-08 | 光库通讯(珠海)有限公司 | Coupler and manufacturing method thereof |
| CN104090338B (en) * | 2014-07-31 | 2017-03-22 | 珠海光库科技股份有限公司 | Coupler and manufacturing method thereof |
| CN109073831A (en) * | 2016-04-15 | 2018-12-21 | 株式会社藤仓 | The manufacturing method of fiber optic protection construction and optical element |
| CN113114364A (en) * | 2021-04-09 | 2021-07-13 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
| CN113114364B (en) * | 2021-04-09 | 2022-02-15 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
| CN115236800A (en) * | 2022-06-29 | 2022-10-25 | 昂纳信息技术（深圳）有限公司 | Optical fiber coupler and manufacturing method thereof |
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Owner name: ZHOU YAN; WU ZHENSHENG; LIN LING; CHEN ZUPEI; CHE Free format text: FORMER OWNER: LIN Effective date: 20010613 |
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Effective date of registration: 20010613 Address after: Room 25, No. 693, Lane 407, Hongqiao Road, Shanghai Applicant after: Zhou Yan Applicant after: Wu Zhensheng Applicant after: Lin Leng Applicant after: Chen Zupei Applicant after: Chen Weihong Address before: 1703 room 760, 200233 Qinzhou Road, Shanghai Applicant before: Lin Die |
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