CN104155753B - Continuously adjustable fibre optic attenuator - Google Patents
Continuously adjustable fibre optic attenuator Download PDFInfo
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- CN104155753B CN104155753B CN201410430376.6A CN201410430376A CN104155753B CN 104155753 B CN104155753 B CN 104155753B CN 201410430376 A CN201410430376 A CN 201410430376A CN 104155753 B CN104155753 B CN 104155753B
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- guide groove
- optical fiber
- cylinder
- groove
- top board
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Abstract
The invention discloses continuously adjustable fibre optic attenuator, comprise shell, the bent forming device that optical fiber is relative with two, optical fiber is between two bent forming devices, the groove for placing optical fiber is provided with in shell, bent forming device comprises the lower corrugated surface that bottom arranges ripply top board and is arranged on bottom portion of groove, the sidewall of groove is respectively arranged with the first symmetrical guide groove and the second guide groove, the first described guide groove and the second guide groove not parallel with the central shaft of optical fiber and equal with the angle number of degrees of optical fiber, the first adjustment cylinder for regulating top board is movably set with between the first described guide groove, the second adjustment cylinder for regulating top board is movably set with between the second described guide groove, described shell is provided with the rule regulating column position for indicating the first adjustment cylinder and second, its first adjustment cylinder and second that slides regulates cylinder can change the flexibility of optical fiber, not only structure is simple, and be easy to operation.
Description
Technical field
The present invention relates to fibre optic attenuator field, particularly, relate to continuously adjustable fibre optic attenuator.
Background technology
Fibre optic attenuator is widely used passive device in optical communication field.For the decay to input optical power, avoid and that photoreceiver produced distortion superpower due to input optical power.Existing fibre optic attenuator, in order to realize continuously adjustabe, have employed the frame mode that publication number is CN1658023A, it utilizes bent forming device to realize the degree of crook of optical fiber, to realize the modulation to signal light intensity in optical fiber, to realize adjustable optical attenuation.Adopt the fibre optic attenuator of this structure, when the distance of bent forming device is regulated, need adjustment in use device, namely regulate regulator that bent forming device is moved along guide rail and realize the adjustment of adjusting the distance, according to the service condition of reality, can adopt manually, motor, voltage, the mode such as magnetic field realize regulator, when adopting manual mode, the adjuster bar of connector arranges screw thread, is realized the adjustment of Light deformation device distance by rotation adjusting lever, operate and extremely bother.
Summary of the invention
Technical matters to be solved by this invention is to provide continuously adjustable fibre optic attenuator, and its first adjustment cylinder and second that slides regulates cylinder can change the flexibility of optical fiber, and not only structure is simple, and is easy to operation.
The present invention's adopted technical scheme that solves the problem is:
Continuously adjustable fibre optic attenuator, comprise shell, the bent forming device that optical fiber is relative with two, described optical fiber is between two bent forming devices, the groove for placing optical fiber is provided with in described shell, described bent forming device comprises the lower corrugated surface that bottom arranges ripply top board and is arranged on bottom portion of groove, the sidewall of described groove is respectively arranged with the first symmetrical guide groove and the second guide groove, the first described guide groove and the second guide groove not parallel with the central shaft of optical fiber and equal with the angle number of degrees of optical fiber, the first adjustment cylinder for regulating top board is movably set with between the first described guide groove, the second adjustment cylinder for regulating top board is movably set with between the second described guide groove, described shell is provided with the rule regulating column position for indicating the first adjustment cylinder and second.
The present invention realize to the principle of the adjustment of fiber middle light signal intensity and the principle of prior art consistent, namely the distance between top board and lower corrugated surface is regulated to change the flexibility of optical fiber, realize the adjustment to fiber middle light signal intensity, realize continuously adjustable optical attenuation.First regulates cylinder and second to regulate cylinder can move along the first guide groove and the second guide groove respectively, because the central shaft of the first guide groove and the second guide groove and optical fiber is not parallel, namely the first guide groove and the second guide groove are not parallel with the central shaft of optical fiber when not bending, the first adjustment cylinder and second is made to regulate cylinder when the diverse location of the first guide groove and the second guide groove, the distance adjustment of top board and lower corrugated surface can be realized, the adjustment of fibre-optical bending degree can be realized.The surface of contact of the first adjustment cylinder and top board is only the straight line perpendicular to fiber optic hub axle, because top board has certain length, it is fixing unstable, the second adjustment cylinder and first is utilized to regulate the cooperation of cylinder, top board is fixed from the two ends of top board simultaneously, well ensure that the stability of top board structure, the two ends of top board are balanced, there will not be the situation that the aspect ratio other end of one end is high.First guide groove and the second guide groove be symmetrical arranged and the first guide groove and the second guide groove not parallel with the central shaft of optical fiber and equal with the angle number of degrees of optical fiber, when regulating cylinder and second to regulate cylinder to regulate to first of two ends, whether the first adjustment cylinder and second regulates cylinder contour to utilize rule to observe, namely whether the two ends of top board are contour parallel stable.Adopt fibre optic attenuator of the present invention, it need regulate cylinder and second to regulate cylinder to rotate to first, can change the flexibility of optical fiber, realize the adjustment to fiber middle light signal intensity, realize adjustable optical attenuation, not only structure is simple for it, and is easy to operation.
As preferably, in order to ensure the precision of fibre optic attenuator, the angle number of degrees between the first described guide groove and the central shaft of optical fiber are greater than 10 degree and are less than 45 degree.Fibre diameter is limited, namely the distance of top board and lower corrugated surface is limited, when the angle number of degrees of the central shaft of the first guide groove and optical fiber are too little, the degree of regulation of fibre optic attenuator is very high, and namely the distance of the first top board when regulating cylinder to move certain distance and bottom portion of groove changes very slow.But when the angle number of degrees are less, the length of shell needs more long, namely takes into account the length of shell and the precision of fibre optic attenuator, and the angle of the central shaft of the first guide groove and optical fiber, in certain scope, is namely greater than 10 degree and is less than 45 degree.
As preferably, for the ease of directly regulating cylinder and second to regulate column position to read to first, the number of degrees of described rule increase gradually along the line of symmetry place of the first guide groove and the second guide groove along both sides or reduce.
Further, described the first adjustment cylinder and second regulates the equal diameters of cylinder.First regulates cylinder and second to regulate the equal diameters of cylinder, when namely making the first adjustment cylinder and second regulate cylinder to move identical distance, top board moves or the height that declines consistent, i.e. convenient operation.
To sum up, the invention has the beneficial effects as follows:
1, of the present invention need regulate cylinder and second to regulate cylinder to rotate to first, and can change the flexibility of optical fiber, realize the adjustment to fiber middle light signal intensity, not only structure is simple for it, and is easy to operation.
2, the present invention utilizes the first adjustment cylinder and second to regulate cylinder to regulate top board simultaneously, ensure that the leveling style of fibre-optical bending degree.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding parts title in accompanying drawing: 1, optical fiber; 2, shell; 21, the first guide groove; 22, the second guide groove; 23, rule; 24, lower corrugated surface; 31, first cylinder is regulated; 32, second cylinder is regulated; 5, top board.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
Continuously adjustable fibre optic attenuator as shown in Figure 1, comprise shell 2, the bent forming device that optical fiber 1 is relative with two, described optical fiber 1 is between two bent forming devices, the groove for placing optical fiber 1 is provided with in described shell 2, described bent forming device comprises the lower corrugated surface 24 that bottom arranges ripply top board 5 and is arranged on bottom portion of groove, the sidewall of described groove is respectively arranged with the first symmetrical guide groove 21 and the second guide groove 22, the first described guide groove 21 and the second guide groove 22 not parallel with the central shaft of optical fiber 1 and equal with the angle number of degrees of optical fiber 1, the first adjustment cylinder 31 for regulating top board 5 is movably set with between the first described guide groove 21, the second adjustment cylinder 32 for regulating top board 5 is movably set with between the second described guide groove 22, described shell 2 is provided with the rule 23 for indicating the first adjustment cylinder 31 and the second adjustment cylinder 32 position.First regulates cylinder can move in the first guide groove 21, can utilize and arrange tooth on the first guide groove 21 inwall, regulate first the gear two end faces of cylinder being arranged and matches with tooth, realizes regulating the movement of cylinder in the first guide groove 21.Second regulates the shifting principle and first of cylinder 32 to regulate cylinder identical.
Embodiment 2:
Continuously adjustable fibre optic attenuator as shown in Figure 1, in order to the length of the precision and shell that ensure fibre optic attenuator, the present embodiment is optimized on the basis of embodiment 1, and the angle number of degrees between the first described guide groove 21 and the central shaft of optical fiber 1 are greater than 10 degree and are less than 45 degree.
Embodiment 3:
Continuously adjustable fibre optic attenuator as shown in Figure 1, for the ease of directly regulating cylinder and second to regulate column position to read to first, the present embodiment is optimized on the basis of above-described embodiment, namely the number of degrees of rule 23 increase gradually along the line of symmetry place of the first guide groove 21 and the second guide groove 22 along both sides or reduce, rule parallels with lower corrugated surface, arrange the reading line of symmetry of rule at the line of symmetry place of the first guide groove 21 and the second guide groove 22, namely this place is the maximal value of 0 or rule.
Embodiment 4:
Continuously adjustable fibre optic attenuator as shown in Figure 1, for the ease of operation, the present embodiment is optimized on the basis of above-described embodiment, the first described adjustment cylinder 31 and the equal diameters of the second adjustment cylinder 32.
As mentioned above, the present invention can be realized preferably.
Claims (4)
1. continuously adjustable fibre optic attenuator, comprise shell (2), the bent forming device that optical fiber (1) is relative with two, described optical fiber (1) is between two bent forming devices, it is characterized in that: in described shell (2), be provided with the groove for placing optical fiber (1), described bent forming device comprises the lower corrugated surface (24) that bottom arranges ripply top board (5) and is arranged on bottom portion of groove, the sidewall of described groove is respectively arranged with symmetrical the first guide groove (21) and the second guide groove (22), described the first guide groove (21) and the second guide groove (22) not parallel with the central shaft of optical fiber (1) and equal with the angle number of degrees of optical fiber (1), the first adjustment cylinder (31) for regulating top board (5) is movably set with between described the first guide groove (21), the second adjustment cylinder (32) for regulating top board (5) is movably set with between described the second guide groove (22), described shell (2) is provided with the rule (23) regulating cylinder (32) position for indicating the first adjustment cylinder (31) and second, the inwall of described first guide groove (21) and the second guide groove (22) is provided with tooth, and described first regulates cylinder (31) and second to regulate the gear two end faces of cylinder (32) all being arranged and matches with tooth.
2. continuously adjustable fibre optic attenuator according to claim 1, is characterized in that: the angle number of degrees between described the first guide groove (21) and the central shaft of optical fiber (1) are greater than 10 degree and are less than 45 degree.
3. continuously adjustable fibre optic attenuator according to claim 1, is characterized in that: the number of degrees of described rule (23) increase gradually along the line of symmetry place of the first guide groove (21) and the second guide groove (22) along both sides or reduce.
4. according to the arbitrary described continuously adjustable fibre optic attenuator of claims 1 to 3, it is characterized in that: described first regulates cylinder (31) and second to regulate the equal diameters of cylinder (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430376.6A CN104155753B (en) | 2014-08-28 | 2014-08-28 | Continuously adjustable fibre optic attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430376.6A CN104155753B (en) | 2014-08-28 | 2014-08-28 | Continuously adjustable fibre optic attenuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104155753A CN104155753A (en) | 2014-11-19 |
| CN104155753B true CN104155753B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430376.6A Expired - Fee Related CN104155753B (en) | 2014-08-28 | 2014-08-28 | Continuously adjustable fibre optic attenuator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113741024B (en) * | 2021-08-11 | 2023-03-28 | 中国工程物理研究院应用电子学研究所 | Split type continuous variable density attenuator device and working method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0990171A (en) * | 1995-09-22 | 1997-04-04 | Nippon Telegr & Teleph Corp <Ntt> | Multi-conductor micro capillary, and connecting method for optical waveguide circuit using it and optical fiber |
| CN1475855A (en) * | 2003-06-27 | 2004-02-18 | 中国科学院上海光学精密机械研究所 | Continuous regulatable digital display type optical fiber attenuator |
| CN1658023A (en) * | 2004-02-19 | 2005-08-24 | 郑毅 | Full fibre-optical light attenuator |
| CN104007511A (en) * | 2014-05-30 | 2014-08-27 | 广东高聚激光有限公司 | Ultrasonic fiber bragg grating all-fiber attenuator and optical fiber online optical power attenuation method |
| CN204129334U (en) * | 2014-08-28 | 2015-01-28 | 成都美美通信技术有限公司 | A kind of continuously adjustable fibre optic attenuator |
-
2014
- 2014-08-28 CN CN201410430376.6A patent/CN104155753B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0990171A (en) * | 1995-09-22 | 1997-04-04 | Nippon Telegr & Teleph Corp <Ntt> | Multi-conductor micro capillary, and connecting method for optical waveguide circuit using it and optical fiber |
| CN1475855A (en) * | 2003-06-27 | 2004-02-18 | 中国科学院上海光学精密机械研究所 | Continuous regulatable digital display type optical fiber attenuator |
| CN1658023A (en) * | 2004-02-19 | 2005-08-24 | 郑毅 | Full fibre-optical light attenuator |
| CN104007511A (en) * | 2014-05-30 | 2014-08-27 | 广东高聚激光有限公司 | Ultrasonic fiber bragg grating all-fiber attenuator and optical fiber online optical power attenuation method |
| CN204129334U (en) * | 2014-08-28 | 2015-01-28 | 成都美美通信技术有限公司 | A kind of continuously adjustable fibre optic attenuator |
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| CN104155753A (en) | 2014-11-19 |
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