CN105116495B - A kind of fibre optic attenuator of consecutive variations - Google Patents
A kind of fibre optic attenuator of consecutive variations Download PDFInfo
- Publication number
- CN105116495B CN105116495B CN201510588226.2A CN201510588226A CN105116495B CN 105116495 B CN105116495 B CN 105116495B CN 201510588226 A CN201510588226 A CN 201510588226A CN 105116495 B CN105116495 B CN 105116495B
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- China
- Prior art keywords
- sliding part
- optical fiber
- adjusting rod
- cassette bottom
- pulley
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
- G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of fibre optic attenuator of consecutive variations, including box body, through the optical fiber and Light deformation mechanism of box body, box body includes box lid and cassette bottom, Light deformation mechanism is arranged in cassette bottom, Light deformation mechanism includes the active drawing device set perpendicular to optical fiber axial direction, and it is arranged in parallel in the driven stretching device of active drawing device both sides, active drawing device includes adjusting rod and the sliding part A being sleeved on outside optical fiber, adjusting rod is axial vertical with optical fiber axial direction, adjusting rod is arranged in cassette bottom by thread fiting mode, adjusting rod one end is connected with sliding part A, driven stretching device includes pulley, drawstring and the sliding part B being sleeved on outside optical fiber, pulley and adjusting rod are located at optical fiber both sides respectively, drawstring one end connection sliding part B, the other end is connected by pulley with adjusting rod one end.The present invention is easy to operate, can realize that optical fiber in multiple continuous Light deformations of point, is continuously decayed, and its is simple in structure, additionally it is possible to reuse so as to fulfill input optical power by adjusting at one.
Description
Technical field
The present invention relates to technical field of optical fiber communication, is specifically related to a kind of fibre optic attenuator of consecutive variations.
Background technology
The fibre optic attenuator of consecutive variations is widely used passive device in optical communication field.For to input optical power
Decay, avoid due to input optical power is superpower and make photoreceiver produce distortion.According to the operation principle of optical attenuator,
It can be divided into many kinds, for example spend model light attenuation device, attenuator type light decay device, liquid crystal type optical attenuator and electric conversion hysteria light
Attenuator etc..Exist in the prior art using can be produced during fibre-optical bending bending loss of optical fiber realize input optical power decay skill
Art scheme, these optical attenuators are although simple in structure, but there are function it is single or inconvenient the problems such as.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of fibre optic attenuator of consecutive variations, can pass through
The continuously adjustable decay of input optical power is realized in simplicity operation.
The purpose of the present invention is achieved through the following technical solutions：
A kind of fibre optic attenuator of consecutive variations, including box body, optical fiber and Light deformation mechanism through box body, the box
Body includes box lid and cassette bottom, and the Light deformation mechanism is arranged in cassette bottom, and the Light deformation mechanism is included perpendicular to optical fiber axial direction
The active drawing device of setting, and it is arranged in parallel in the driven stretching device of active drawing device both sides, the active drawing
The sliding part A that device includes adjusting rod and is sleeved on outside optical fiber, axial, the adjusting vertical with the optical fiber axial direction of the adjusting rod
Bar is arranged in cassette bottom by thread fiting mode, and adjusting rod one end is connected with sliding part A, and the driven stretching device includes sliding
Wheel, drawstring and the sliding part B being sleeved on outside optical fiber, the pulley and adjusting rod are located at optical fiber both sides respectively, and described drawstring one end connects
Meet sliding part B, the other end is connected by pulley with described adjusting rod one end.
By adjusting adjusting rod, sliding part A and sliding part B can be made to be slided along perpendicular to optical fiber direction, under pulley action,
Adjusting rod A is applied to be parallel to each other but direction is on the contrary, such as in the direction of pull of sliding part B and the direction of pull that applies in sliding part A
This makes optical fiber for being placed in sliding part A and sliding part B produce flexural deformation, so as to only need can to realize an adjusting rod pair
The flexural deformation of three points of optical fiber, and adjusting rod is to be arranged on by thread fiting mode in cassette bottom, can so be realized
Adjust continuously adjusting for pole length, the technique effect that can continuously decay so as to fulfill input optical power.In addition, in the technical program
Each component simple structure, easy to manufacture processing, wherein sliding part A can be identical with sliding part B structure, or even in some situations
Under, the quantity of sliding part A and sliding part B can also be added by wall on demand, repeat to arrange by the technical program.
Further, above-mentioned active drawing device further includes locating part A, and locating part A is fixedly installed in cassette bottom and is located at
Adjusting rod opposite side, the driven stretching device further include locating part B, and the locating part B is fixedly installed in cassette bottom and is located at
Pulley opposite side.Locating part A and locating part B plays a part of to limit its initial position to sliding part A and sliding part B respectively, so that
The central hole of sliding part A and sliding part B are extended there through on same axis easy to optical fiber.
Further, connected between above-mentioned locating part A and sliding part A, between locating part B and sliding part B by elastomeric element
Connect, elastomeric element can be spring, rubber band etc., easy to which when removing fibre optic attenuator, sliding part A and sliding part B can be certainly
It is dynamic to return to original state, fibre optic attenuator can be so reused, so as to economize on resources.
Further, the sliding part A and the sliding part B are annulus, the sliding part of circular ring structure, easy to draw materials,
And it is easily processed into type, when assembling, also easily makes sliding part A and sliding part B endoporus be in same axis.
Further, the sliding part A and sliding part B is the cuboid for being provided with through hole, is offered in cuboid
The through hole passed through for optical fiber, cuboid shape smoother surface add sliding part A and locating part A, sliding part B and locating part
Contact surface between B, enables locating part more effectively to play restricted sliding part initial position, especially as above-mentioned spacing
Between part A and sliding part A, when being connected between locating part B and sliding part B by elastomeric element, when recycling fibre optic attenuator
When, the smooth contact surface in larger face, can be such that sliding part A and sliding part B accurately recovers automatically to initial position, in order to next time
Box body can be easily passed through using optical fiber during fibre optic attenuator.
Beneficial effects of the present invention：
The present invention can be such that sliding part A and sliding part B is slided along perpendicular to optical fiber direction, in pulley by adjusting adjusting rod
Under effect, adjusting rod A is applied to be parallel to each other but direction in the direction of pull of sliding part B and the direction of pull that applies in sliding part A
On the contrary, the optical fiber for so making to be placed in sliding part A and sliding part B produces flexural deformation, so as to only need to an adjusting rod just
The flexural deformation to three points of optical fiber can be achieved, and adjusting rod is to be arranged on by thread fiting mode in cassette bottom, so
It can realize and adjust continuously adjusting for pole length, the technique effect that can continuously decay so as to fulfill input optical power.In addition, this skill
Each component simple structure in art scheme, easy to manufacture processing, and the elastomeric element by being connected between locating part and sliding part
Sliding part is recovered automatically to initial position, be conducive to the heavy use of fibre optic attenuator.
Brief description of the drawings
Attached drawing 1 is optical fiber horizontal state lower structure schematic diagram in one embodiment of the present invention；
Attached drawing 2 is fibre-optical bending state lower structure schematic diagram in one embodiment of the present invention.
In figure：1- cassette bottoms, 2- optical fiber, 31- adjusting rods, 32- sliding parts A, 33- locating part A, 34- nut, 35- springs,
41- pulleys, 42- drawstrings, 43- sliding parts B, 44- locating part B, 45- spring.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment：
As shown in Figure 1 and Figure 2, a kind of fibre optic attenuator of consecutive variations, including box body, through the optical fiber 2 of box body and micro-
Deformation mechanism, box body include box lid and cassette bottom 1, and 1 both sides of cassette bottom open up the hole passed through for optical fiber 2, and the Light deformation mechanism is set
In in cassette bottom 1, the Light deformation mechanism includes the active drawing device axially set perpendicular to optical fiber 2, and Parallel Symmetric is set
Two groups of driven stretching devices of active drawing device both sides are placed in, the active drawing device includes adjusting rod 31, is sleeved on optical fiber 2
Outer sliding part A32, locating part A33, nut 34, adjusting rod 31 is axial axially vertical with optical fiber 2,31 one end of adjusting rod and slip
Part A32 connections, 31 other end of adjusting rod stretch out 2 side of cassette bottom, are connected to by nut 34 in cassette bottom 2, and sliding part A32 is circle
Ring, locating part A33 are fixedly installed in cassette bottom 2 and 31 opposite side of adjusting rod, in the non-flexural deformation of optical fiber, locating part A33
One surface is contacted with sliding part A32, and locating part A33 shapes are cylinder or cuboid, and receiving spring is offered in locating part A33
35 hole, hole depth are slightly larger than the drift of spring 35, are connected between locating part A33 and sliding part A32 by spring 35.
Driven stretching device includes pulley 41, drawstring 42, the sliding part B43 being sleeved on outside optical fiber, locating part B44, the cunning
It is the annulus identical with sliding part A33 that wheel 41, which is fixedly mounted in cassette bottom 2 with 31 opposite side of adjusting rod, sliding part B43, drawstring
42 one end connection sliding part B43, the other end are connected around pulley 41 with 31 one end of adjusting rod, and locating part B44 is fixedly installed on box
With 41 opposite side of pulley in bottom 2, in the non-flexural deformation of optical fiber, mono- surfaces of locating part B44 are contacted with sliding part B43, spacing
Part B43 shapes are identical with locating part A33, and the hole for accommodating spring 45 is offered in locating part B44, and hole depth is slightly larger than oneself of spring 45
By length, connected between locating part B44 and sliding part B43 by spring 45.
Using consecutive variations described in the present embodiment fibre optic attenuator when, first by optical fiber 2 through 2 side of cassette bottom hole and
The nut 34 of the endoporus of sliding part A32 and sliding part B43, then rotating box bottom side, adjusting rod 31 is overhanging to cassette bottom 2 at this time
Go out and drive sliding part A32, sliding part B43 slips, because of the effect of pulley 41 and drawstring 42, sliding part B43 and sliding part A32
Glide direction on the contrary, so that optical fiber 2 produced at sliding part A and two sliding part B bending Light deformation, in addition because of adjusting rod
31 are adjusted by nut 34, so the fibre optic attenuator that this implementation toilet states consecutive variations can realize input optical power
Continuous decay.The fibre optic attenuator of consecutive variations described in the present embodiment is easy to operate, only need to rotate one be located on the outside of cassette bottom
Nut 34, but optical fiber 2 can be made to have at three bending Light deformation, its is easy to operate, and attenuating is preferable, in addition this consecutive variations
Each component simple structure of fibre optic attenuator, and active drawing device and sliding part, locating part and bullet in driven stretching device
Spring can be same size component, and simply installation and link position are different, therefore this implementation toilet states the optical fiber attenuation of consecutive variations
Device manufacture is very convenient.In addition, the fibre optic attenuator of this consecutive variations is also reusable, and when removing fibre optic attenuator, rotation
Turn nut 34, spring 34,35 restoring forces effect and locating part A33, locating part B44 restriction effect under, sliding part A32,
Sliding part B43 recovers to initial position automatically, extracts optical fiber 2 out, recycles fibre optic attenuator.
As described above, the present invention can be then realized well.
Claims (3)
- A kind of 1. fibre optic attenuator of consecutive variations, it is characterised in that：Including box body, through the optical fiber of box body（2）And micro- change Shape mechanism, the box body include box lid and cassette bottom（1）, the Light deformation mechanism is arranged at cassette bottom（1）It is interior, the Light deformation mechanism Including perpendicular to optical fiber（2）The active drawing device axially set, and it is arranged in parallel in the driven of active drawing device both sides Stretching device, the active drawing device include adjusting rod（31）Be sleeved on optical fiber（2）Outer sliding part A（32）, the adjusting Bar（31）The axial and optical fiber（2）It is axially vertical, the adjusting rod（31）Cassette bottom is arranged on by thread fiting mode（1） On, the adjusting rod（31）One end and sliding part A（32）Connection, the driven stretching device include pulley（41）, drawstring（42） With the sliding part B being sleeved on outside optical fiber（43）, the pulley（42）And adjusting rod（31）It is located at optical fiber respectively（2）Both sides, the drawing Rope（42）One end connection sliding part B（43）, the other end pass through pulley（41）With the adjusting rod（31）One end connects；The active Stretching device further includes locating part A（33）, the locating part A（33）It is fixedly installed on cassette bottom（1）It is interior and be located at adjusting rod（31） Opposite side, the driven stretching device further include locating part B（44）, the locating part B（44）It is fixedly installed on cassette bottom（1）Interior, And it is located at pulley（41）Opposite side；The sliding part A（33）With the sliding part B（44）It is annulus.
- 2. the fibre optic attenuator of consecutive variations according to claim 1, it is characterised in that：The locating part A（33）With cunning Moving part A（32）Between, the locating part B（44）With sliding part B（43）Between connected by elastomeric element.
- 3. the fibre optic attenuator of consecutive variations according to claim 1, it is characterised in that：The sliding part A（33）With institute State sliding part B（44）It is the cuboid for being provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588226.2A CN105116495B (en) | 2015-09-16 | 2015-09-16 | A kind of fibre optic attenuator of consecutive variations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588226.2A CN105116495B (en) | 2015-09-16 | 2015-09-16 | A kind of fibre optic attenuator of consecutive variations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105116495A CN105116495A (en) | 2015-12-02 |
| CN105116495B true CN105116495B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510588226.2A Expired - Fee Related CN105116495B (en) | 2015-09-16 | 2015-09-16 | A kind of fibre optic attenuator of consecutive variations |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416008A (en) * | 2002-12-06 | 2003-05-07 | 武汉理工大学 | Optical fiber type variable optical attenuator |
| CN1658023A (en) * | 2004-02-19 | 2005-08-24 | 郑毅 | Full fibre-optical light attenuator |
| CN2758793Y (en) * | 2004-11-02 | 2006-02-15 | 江苏亨通光电股份有限公司 | Optical fibre micro-bending generator |
| CN2890970Y (en) * | 2005-05-12 | 2007-04-18 | 南开大学 | Adjustable optical attenuator based on optical fiber bending loss |
| CN104155752A (en) * | 2014-08-28 | 2014-11-19 | 成都美美通信技术有限公司 | Optical fiber type variable optical attenuator |
| CN204964876U (en) * | 2015-09-16 | 2016-01-13 | 成都美美通信技术有限公司 | Optical fiber attenuator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000075222A (en) * | 1998-08-31 | 2000-03-14 | Tatsuta Electric Wire & Cable Co Ltd | Variable type optical fiber attenuator |
-
2015
- 2015-09-16 CN CN201510588226.2A patent/CN105116495B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416008A (en) * | 2002-12-06 | 2003-05-07 | 武汉理工大学 | Optical fiber type variable optical attenuator |
| CN1658023A (en) * | 2004-02-19 | 2005-08-24 | 郑毅 | Full fibre-optical light attenuator |
| CN2758793Y (en) * | 2004-11-02 | 2006-02-15 | 江苏亨通光电股份有限公司 | Optical fibre micro-bending generator |
| CN2890970Y (en) * | 2005-05-12 | 2007-04-18 | 南开大学 | Adjustable optical attenuator based on optical fiber bending loss |
| CN104155752A (en) * | 2014-08-28 | 2014-11-19 | 成都美美通信技术有限公司 | Optical fiber type variable optical attenuator |
| CN204964876U (en) * | 2015-09-16 | 2016-01-13 | 成都美美通信技术有限公司 | Optical fiber attenuator |
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| Publication number | Publication date |
|---|---|
| CN105116495A (en) | 2015-12-02 |
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Granted publication date: 20180424 Termination date: 20200916 |