CN103149635B - Manufacturing method of fixed long-delay optical fiber delay line and optical fiber cutting device - Google Patents
Manufacturing method of fixed long-delay optical fiber delay line and optical fiber cutting device Download PDFInfo
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- CN103149635B CN103149635B CN201310068465.6A CN201310068465A CN103149635B CN 103149635 B CN103149635 B CN 103149635B CN 201310068465 A CN201310068465 A CN 201310068465A CN 103149635 B CN103149635 B CN 103149635B
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Abstract
The invention discloses a manufacturing method of a fixed long-delay optical fiber delay line and an optical fiber cutting device. The manufacturing method comprises the following steps of (1) selecting an optical fiber patch cord, and measuring the length; (2) calculating the length of the optical fiber to be compensated, and cutting the optical fiber, so as to obtain the optical fiber with the target length; (3) stripping an outer coating of one section of the middle part of the optical fiber patch cord and a buffering layer, and exposing the bare fiber; (4) cutting the exposed part of the bare fiber of the optical fiber patch cord obtained in step 3, so as to obtain two sections of optical fiber patch cords; and (5) welding the two ends of the optical fiber with the target length with the obtained two sections of optical fiber patch cords obtained in step 4, and sheathing an optical fiber heat shrinkable pipe on the welding points of the optical fiber and the two ends thereof. The manufacturing method has the advantages that the manufacturing process is simple, the high precision and the long delay can be simultaneously realized, the basic feature of the optical fiber patch cord is maintained, the optical fiber patch cord can be directly connected into the system, and the adjusting of the whole length of the optical fiber is not required. The optical fiber cutting device has the advantages that the structure is simple, the cutting precision is high, the quality of the cut end surface meets the welding requirement, the original length of the optical fiber patch cord is maintained, and the operation is easy and convenient.
Description
Technical field
The present invention relates to information optoelectronic areas, relate in particular to a kind of method for making and optical fiber cleaver of fixed length time delay optical fiber delay line.
Background technology
Current, fiber delay line is widely used in a lot of fields, such as Fibre Optical Sensor and optical measurement field, optical communication field, Microwave photonics field etc.Since fiber delay line produces, it, from initial simple one section of optical fiber, develops into the individual devices that present stage has Various Complex structure.But long delay and high precision are conflicts, be difficult for realizing simultaneously.For example: the fiber delay line based on waveguide can be realized very high delay precision, but its material, size restrictions it can not realize long delay; Single fiber type delay line can be realized long delay, but in the situation that optical fiber is long, cutting accuracy is difficult to assurance, thereby has influence on the precision of time delay.Secondly, general fiber delay line, need to be under the monitoring of high precision length measuring system in the process of connecting system, by to processing such as optical fiber stretch, adjust length, to reach target amount of delay, technique more complicated, and the operation such as stretching can deteriorated optical fiber property.In addition, adopt optical fiber cutter to carry out cutting optical fibre wire jumper, the optical patchcord end face quality of cutting is generally poor, can not meet welding requirement.
Summary of the invention
The technical problem to be solved in the present invention is, for can not realize long delay and high precision in prior art simultaneously, the required complex process of fiber delay line connecting system also affects performance, the above-mentioned defects such as cutting end face that general optical fiber cleaver obtains in the time of cutting optical fibre wire jumper is of poor quality, a kind of method for making and optical fiber cleaver of fixed length time delay optical fiber delay line are provided, wherein, the manufacture craft of described fixed length time delay optical fiber delay line is simple, the fiber lengths of required cutting welding is shorter, can be in realizing long delay, guarantee very high delay precision, and retain the essential characteristic of wire jumper, directly connecting system, in the process of connecting system without adjusting again fiber lengths, the amount of delay of having realized design is the amount of delay that system obtains, in addition, described optical fiber cleaver is simple in structure, and cutting accuracy is high, only need once cut optical patchcord, and the cutting end face quality obtaining meets welding requirement, and does not change the original length of optical patchcord.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method for making of fixed length time delay optical fiber delay line, comprises the following steps:
The first step, according to the selected optical patchcord of target amount of delay, and the precise length of measuring optical fiber wire jumper;
Second step, calculates the fiber lengths that makes optical patchcord reach the required compensation of target amount of delay, precise cutting, the optical fiber of acquisition target length;
The 3rd step, peels outer quilt and the cushion of middle one section of the optical patchcord after the first step is measured length off, exposes naked fibre;
The 4th step, cut at the position that the optical patchcord being obtained by the 3rd step is exposed at naked fibre, and obtain the first optical patchcord and the second optical patchcord, and cutting end face quality meets welding requirement;
The 5th step, by the two ends of the optical fiber for Compensation Objectives length being obtained by second step respectively with by the 4th step obtain the first optical patchcord and the second optical patchcord phase welding, and on the fusion point at optical fiber and two ends thereof, put optical fiber heat-shrink tube, obtain described fixed length time delay optical fiber delay line.
In technical scheme of the present invention, in the 3rd step, first utilize the two ends, position that optical fiber wire-stripping pliers will be shelled on optical patchcord to press from both sides out twice impression, then slowly peel off from an impression to another impression with blade a side quilt, cut off the outer quilt of opposite side with scissors; With optical fiber wire-stripping pliers, the two ends on cushion press from both sides out twice impression again, slowly peel equally the cushion of a side with blade since an impression off, then cut off the cushion of opposite side; Next, peel the coat of naked fine outside off, and with the naked fibre of alcohol wipe.
In technical scheme of the present invention, cut at the position of exposing at the naked fibre of optical patchcord, obtain the first optical patchcord and the second optical patchcord, wherein the angle of the two cutting end face of the first optical patchcord and the second optical patchcord will meet welding requirement, in general should be less than 3 °, if cutting end plane angle is greater than 3 °, optical patchcord and naked fine welding meeting are had any problem; If cutting finishing cutting end face, has changed the original length of optical patchcord again.
In technical scheme of the present invention; in the 5th step; by the two ends of the optical fiber of target length respectively with the first optical patchcord and the second optical fiber phase welding after, on the fusion point at optical fiber and two ends thereof, put optical fiber heat-shrink tube, strengthen like this protection to naked fibre between optical patchcord.
In sum, the manufacture craft of described fixed length time delay optical fiber delay line of the present invention is simple, the fiber lengths of required cutting welding is shorter, can be in realizing long delay, guarantee very high delay precision, and retained the essential characteristic of wire jumper, directly connecting system, in the process of connecting system, without adjusting fiber lengths, the amount of delay of having realized design is the amount of delay that system obtains again.
For making an optical fiber cleaver for above-mentioned fixed length time delay optical fiber delay line, comprise base plate and be fixed on the fiber cut assembly on base plate and adjust assembly, fiber cut assembly comprises cutting knife and is placed in the optical fiber cutter on cutting knife; Optical fiber cutter comprises cutter body and No. four pressing plates, and cutter body is connected with No. four press plate rotaries;
Adjusting assembly comprises five dimension adjustment racks and is placed in the V-type groove on five dimension adjustment racks; V-type groove comprises V-type groove body and the pressing plate, No. two pressing plates and No. three pressing plates that are all rotationally connected with V-type groove body.
In technical scheme of the present invention, described cutter sweep comprises fiber cut assembly and adjusts assembly, wherein fiber cut assembly comprises cutting knife and optical fiber cutter, optical fiber cutter is fixed on cutting knife, can make so on the one hand the height of optical fiber cutter match with the height of adjusting assembly, can guarantee that on the other hand optical fiber cutter can not move, thereby guarantees good cut quality in the time carrying out optical patchcord cutting.In addition, adjust assembly and comprise five dimension adjustment racks and V-type groove, V-type groove is fixed on five dimension adjustment racks, can be by make the gathering sill of V-type groove and the gathering sill of optical fiber cutter realize collimation to the adjustment of five dimension adjustment racks, further improved cutting accuracy, and described optical fiber cleaver is simple in structure.
In technical scheme of the present invention, utilize the detailed process of described cutter sweep cutting as follows: the optical patchcord stripping to be placed in the gathering sill and V-type groove of optical fiber cutter, depress No. four pressing plates and No. three pressing plates, regulate the height of five dimension adjustment racks, make V-type groove and optical fiber cutter on sustained height, then depress No. two pressing plates on V-type groove, again by adjusting five dimension adjustment racks to regulate angle of inclination and the anglec of rotation of V-type groove, make the gathering sill of V-type groove and the gathering sill of optical fiber cutter on same straight line, if now the gathering sill of V-type groove and the gathering sill of optical fiber cutter be not still on same straight line, can depress pressing plate No. one.After all preliminary works are ready, promote fast blade, naked fine part is cut.Compared with using separately optical fiber cutter or V-type groove in prior art, utilize cutter sweep of the present invention only need once cut optical patchcord, cutting end face quality meets fused fiber splice requirement, and does not change the original length of optical patchcord, easy and simple to handle.
In technical scheme of the present invention, adopt conventional in the art optical fiber cutter and V-type groove can realize the technical program, in addition, all being not specifically noted, all can be by adopting conventional means in the art realize.
Therefore, the invention has the beneficial effects as follows method for making and optical fiber cleaver that a kind of fixed length time delay optical fiber delay line is provided, described delay line manufacture craft is simple, the fiber lengths of required cutting welding is shorter, can, in realizing long delay, guarantee very high delay precision, and retain the essential characteristic of wire jumper, directly connecting system, in the process of connecting system, without adjusting fiber lengths, the amount of delay of having realized design is the amount of delay that system obtains again; Described optical fiber cleaver is simple in structure, and cutting accuracy is high, only need once cut optical patchcord, and the cutting end face quality obtaining meets welding requirement, does not change the original length of optical patchcord, easy and simple to handle.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the optical patchcord that strips in the present invention;
Fig. 2 is the structural representation of the optical patchcord of well cutting;
Fig. 3 is the structural representation of fixed length time delay optical fiber delay line;
Fig. 4 is the structural representation of optical fiber cleaver;
Now by as follows the label declaration in accompanying drawing: 1 is naked fibre, 2 is cushion, and 3 is outer quilt, 4 is optical fiber heat-shrink tube, and 5 is a pressing plate, and 6 is No. two pressing plates, 7 is No. three pressing plates, and 8 is No. four pressing plates, and 9 is optical fiber cutter, 10 is cutting knife, 11 is V-type groove, and 12 is five dimension adjustment racks, and 13 is cutter body, 14 is V-type groove body, and 15 is base plate.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The preferred embodiment of the present invention is as follows:
A method for making for fixed length time delay optical fiber delay line, comprises the following steps:
The first step, according to the optical patchcord of the selected appropriate length of target amount of delay, and the precise length of measuring optical fiber wire jumper;
Second step, calculates and makes optical patchcord reach the fiber lengths of the required compensation of target amount of delay, and precise cutting obtains the optical fiber of this segment length;
The 3rd step, by the middle of optical patchcord after the first step is measured length one section outer by 3 and cushion 2 peel off, expose naked fine 1, as shown in Figure 1.
The 4th step, cuts the optical patchcord being obtained by the 3rd step, and obtains the first optical patchcord and the second optical patchcord at naked fine 1 position of exposing, and cutting end face quality meets welding requirement;
The 5th step, by the two ends of the optical fiber for Compensation Objectives length being obtained by second step respectively with by the 4th step obtain the first optical patchcord and the second optical patchcord phase welding, and on the fusion point at optical fiber and two ends thereof, put optical fiber heat-shrink tube 4, obtain described fixed length time delay optical fiber delay line, as shown in Figure 3.
In above-mentioned the 3rd step, as shown in Figure 2, first utilize the two ends, position that optical fiber wire-stripping pliers will be shelled on optical patchcord to press from both sides out twice impression, then slowly peel off from an impression to another impression with blade a side by 3, cut off the outer by 3 of opposite side with scissors; With optical fiber wire-stripping pliers, the two ends on cushion 2 press from both sides out twice impression again, slowly peel equally the cushion 2 of a side with blade since an impression off, then cut off the cushion 2 of opposite side; Next, peel the coat of naked fine 1 outside off, and by alcohol wipe naked fine 1.
As shown in Figure 4, described in the present embodiment, optical fiber cleaver comprises fiber cut assembly and adjusts assembly, and both are fixed on base plate 15, wherein, fiber cut assembly is made up of cutting knife 10 and optical fiber cutter 9, and optical fiber cutter 9 is fixed on cutting knife 10; Optical fiber cutter 9 is made up of cutter body 13 and No. four pressing plates 8, and No. four pressing plates 8 are connected with cutter body 13 by being rotationally connected mode; Adjust assembly and be made up of five dimension adjustment racks 12 and the V-type groove 11 that is placed on five dimension adjustment racks 12, wherein, V-type groove 11 comprises V-type groove body 14 and all to be rotationally connected a pressing plate that mode is connected with V-type groove body 14 5, No. two pressing plates 6 and No. three pressing plates 7.
When work, the optical patchcord stripping is placed in the gathering sill of optical fiber cutter 9 and the gathering sill of V-type groove 11, depress No. four pressing plates 8 and No. three pressing plates 7, regulate the height of five dimension adjustment racks 12, make V-type groove 11 and optical fiber cutter 9 on sustained height, then depress No. two pressing plates 6 on V-type groove 11, again by adjusting five dimension adjustment racks 12 to regulate angle of inclination and the anglec of rotation of V-type groove 11, make the gathering sill of V-type groove 11 and the gathering sill of optical fiber cutter 9 on same straight line, if now the gathering sill of the gathering sill of V-type groove 11 and optical fiber cutter 9 is not still on same straight line, can depress pressing plate 5 No. one.After all preliminary works are ready, promote fast blade, naked fine 1 part is cut.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (2)
1. a method for making for fixed length time delay optical fiber delay line, is characterized in that, comprises the following steps:
The first step, selectes optical patchcord according to target amount of delay, and measures the precise length of described optical patchcord;
Second step, calculates the fiber lengths that makes optical patchcord reach the required compensation of target amount of delay, precise cutting, the optical fiber of acquisition target length;
The 3rd step, peels outer quilt (3) and the cushion (2) of middle one section of the optical patchcord after the first step is measured length off, exposes naked fibre (1);
The 4th step, cut at the position that the optical patchcord being obtained by the 3rd step is exposed at naked fibre (1), and obtain the first optical patchcord and the second optical patchcord, and cutting end face quality meets welding requirement; The angle of the two cutting end face of aforementioned the first optical patchcord and the second optical patchcord is less than 3 °;
The 5th step, by the two ends of the optical fiber for Compensation Objectives length being obtained by second step respectively with by the 4th step obtain the first optical patchcord and the second optical patchcord phase welding, and on the fusion point at optical fiber and two ends thereof, put optical fiber heat-shrink tube (4), obtain described fixed length time delay optical fiber delay line.
2. one kind for making the optical fiber cleaver of fixed length time delay optical fiber delay line described in claim 1, it is characterized in that, comprise base plate (15) and be fixed on the fiber cut assembly on base plate (15) and adjust assembly, described fiber cut assembly comprises cutting knife (10) and is placed in the optical fiber cutter (9) on cutting knife (10); Described optical fiber cutter (9) comprises cutter body (13) and No. four pressing plates (8), and cutter body (13) and No. four pressing plates (8) are rotationally connected;
Described adjustment assembly comprises five dimension adjustment racks (12) and is placed in the V-type groove (11) on five dimension adjustment racks (12); Described V-type groove (11) comprises V-type groove body (14) and the pressing plate (5), No. two pressing plates (6) and No. three pressing plates (7) that are all rotationally connected with V-type groove body (14).
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| CN201310068465.6A CN103149635B (en) | 2013-03-04 | 2013-03-04 | Manufacturing method of fixed long-delay optical fiber delay line and optical fiber cutting device |
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| CN103149635B true CN103149635B (en) | 2014-06-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570214B (en) * | 2015-01-19 | 2017-10-20 | 上海交通大学 | Making servicing unit of high-precision long-distance optical fiber delay line and preparation method thereof |
| CN106908902A (en) * | 2017-04-14 | 2017-06-30 | 上海康阔光传感技术股份有限公司 | Optical fiber splicer and optical fiber splicing method |
| CN107942433B (en) * | 2017-11-24 | 2019-11-15 | 中国电子科技集团公司第八研究所 | A kind of manufacture craft of high-precision control fiber lengths |
| WO2020097806A1 (en) * | 2018-11-14 | 2020-05-22 | 四川灼识科技股份有限公司 | Optical fiber cutting machine propelling device, clamp and mounted cutting machine |
| CN111239904B (en) * | 2020-02-26 | 2022-09-13 | 青岛自贸激光科技有限公司 | Method for accurately controlling and repairing cutting length in optical fiber fusion process |
| CN113009636B (en) * | 2021-04-12 | 2022-11-15 | 中国电子科技集团公司第四十四研究所 | Method and system for preparing dense wavelength division multiplexing device with high precision |
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