CN1756978A - Coupling a tapered optical element to an optical fiber - Google Patents
Coupling a tapered optical element to an optical fiber Download PDFInfo
- Publication number
- CN1756978A CN1756978A CN 200480005864 CN200480005864A CN1756978A CN 1756978 A CN1756978 A CN 1756978A CN 200480005864 CN200480005864 CN 200480005864 CN 200480005864 A CN200480005864 A CN 200480005864A CN 1756978 A CN1756978 A CN 1756978A
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- group
- grapple
- opening round
- optical element
- round nose
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Abstract
A fiber optic coupler comprises a metal tube (20) and a clear hollow silicone insert (10), with a tapered region (15) including a first set of grabbers (11) and a constant area region (17) including a second set of grabbers (12). A tapered optical element (40) is coupled to an optical fiber (50), when both the tapered optical element and the optical fiber are mechanically secured by crimping the metal tube and the silicone insert in the proximity of the first and second sets of grabbers, as by using a standard crimper tool.
Description
Technical field
The present invention relates to the optical fibre illumination field, more specifically, relate to a kind of optical element that is suitable for convergent and be attached to unitor on the optical fiber.
Background technology
Though more known be used to connect the method for optical cable, such method has been proved to be the optical element that is not suitable for convergent, for example morphing amplitude transformer (concentrator) is attached on the optical fiber.Therefore, particularly in nonimaging optics is used, exist a kind ofly can have cost efficiency ground and optical fiber is attached to demand on the nonimaging optics element of convergent.
Summary of the invention
The invention describes a kind of unitor that uses tapered optical element is attached to apparatus and method on the optical fiber.In a preferred embodiment, unitor of the present invention comprises and is used for the hollow silicone insert that is arranged in metal tube of positioning optical waveguides and convergent nonimaging optics element.The shrinkage clamping tool makes metal tube and unitor produce enough big distortion, so that optical fiber and nonimaging optics element arrangements are neatly fixed.Silicone insert can directly contact with the nonimaging optics element, and does not lose total internal reflection.According to the present invention, silicone insert comprises " grabber features " that clamps around these parts.Advantageously, the refractive index match medium contacts with the opposite face of these parts, and the fresnel reflection loss is reduced to less than 1% from 8%.
According to first aspect, the invention provides a kind of fiber optic connector that is used for tapered optical element, comprising:
Metal tube with inner peripheral surface, the first opening round nose and second opening round nose;
Be arranged in the metal tube inner peripheral surface and contiguous metal pipe inner peripheral surface, refractive index is less than the clear hollow plug-in unit of tapered optical element;
This hollow insert comprises:
The input taper, it extends first preset distance along central axis from the first opening round nose, this taper region comprises first group of a plurality of grapple, wherein each inner peripheral surface from metal tube in these first group of a plurality of grapple radially extends, and these first group of a plurality of grapple limits jointly from the first of the extended cone of this first opening round nose
Attachment areas from the place of the distance first opening round nose first preset distance, and goes out second preset distance along extension of central axis, the radial thickness of described attachment areas limit from the second portion of the extended cone of the first opening round nose and
Begin from the place of the distance first opening round nose second preset distance and along the constant area region of extension of central axis to the second opening round nose, described constant area region comprises second group of a plurality of grapple, and wherein each in second group of a plurality of grapple radially extended the 3rd preset distance from this inner peripheral surface.
According to second aspect, the invention provides a kind of being used for tapered optical element is attached to method on the optical fiber, may further comprise the steps:
Transparent silicone insert is arranged on the inner peripheral surface of metal tube with the first opening round nose and second opening round nose;
Form the input taper of described transparent silicone insert, described taper comprises first group of a plurality of grapple, and its inner peripheral surface from described metal tube radially extends;
Form the attachment areas of described transparent silicone insert, described attachment areas is local initial from the described first opening round nose, first preset distance of distance, and along extension of central axis second preset distance of described metal tube;
Form the constant area region of described transparent silicone insert, described constant area region comprises second group of a plurality of grapple, and its inner peripheral surface from described metal tube radially extends;
Described tapered optical element is inserted the described first opening round nose of described metal tube, and contact with described first group of a plurality of grapple;
Described optical fiber is inserted the described second opening round nose of described metal tube, and contact with described second group of a plurality of grapple; And
Shrinkage clamps described metal tube, so that mechanically fixedly tapered optical element and optical fiber.
After the detailed description of the present invention below studying, perhaps after learning by doing of the present invention, new feature of the present invention will be conspicuous for a person skilled in the art.Yet be construed as, detailed description of the present invention and shown specific embodiment only are used for illustrations, because various change and modification for a person skilled in the art will be apparent within scope of invention and spirit.
Description of drawings
Fig. 1 shows the fiber optic connector according to a specific illustrative embodiment of the present invention.
Fig. 2 shows the inner structure of fiber optic connector among Fig. 1 before used according to the invention.
Fig. 3 is illustrated in shrinkage and clamps (crimping) before, and the fiber optic connector that uses first embodiment of the invention is connected to tapered optical element on the optical fiber by optics.
Fiber optic connector among Fig. 3 after Fig. 4 shows shrinkage and clamps.
Fig. 5 showed before shrinkage clamps, and the fiber optic connector that uses second embodiment of the invention is connected to tapered optical element on the optical fiber by optics.
Fiber optic connector among Fig. 5 after Fig. 6 shows shrinkage and clamps.
Embodiment
At first referring to Fig. 1, fiber optic connector according to an embodiment of the invention comprises a plug-in unit 10 that is positioned at the clear hollow of for example being made by materials such as silicones of deformable tube 20.This material that is used as the plug-in unit of clear hollow advantageously has the refractive index lower than tapered optical element, and perhaps more low refractive index coating is set between hollow insert 10 and the tapered optical element, in case leak-stopping light.In a particular embodiment, pipe 20 is made of metal, and has 5.7 millimeters external diameter and 5.2 millimeters internal diameter.
Fig. 2 shows in the inner structure as the fiber optic connector shown in Figure 1 before the connection element.The plug-in unit 10 of this clear hollow comprises input taper 15, attachment section 16 and constant area region (constant area region) 17, and the moulding part on the inside surface that abuts in metal tube 20 advantageously is set.This input taper 15 is limited by first group of grapple that is close together gradually 11.Each inner peripheral surface from metal tube 20 in first group of grapple 11 extends radially, and limits the first of cone jointly.Advantageously, the tapering of the tapering of this cone and tapered optical element is complementary.
This output constant area region 17 is limited by mutual second group of equally spaced grapple 12.In second group of grapple 12 each is extended preset distance radially from inner peripheral surface.Advantageously, the diameter of this preset distance and optical fiber is complementary.
Advantageously, these grapple zones provide the shrinkage clamping region, and are as described below, and it allows to utilize the standard crimp clamping tool, as the shrinkage clamping tool of the CrimpALL series made by Paladin.
Referring to Fig. 3, there is shown a kind of fiber optic connector, before carrying out the shrinkage clamp operation, comprise metal tube 20 and transparent hollow insert 10.As mentioned above, this transparent hollow insert comprises taper 15, attachment section with first group of grapple 11 and the constant area region 17 with second group of grapple 12.Tapered optical element 40 nestles up optical cable 50 and is provided with in unitor of the present invention.This tapered optical element 40 is inserted in the input taper 15, and the opposite end of optical cable 50 by unitor is inserted in the constant area region 17.Tapered optical element 40 and optical cable 50 all stretch in the attachment areas 16, and the material of the plug-in unit of clear hollow has enough big amount of deflection to hold the part of tapered optical element 40 there.Refractive index match medium 60 is set between the composition surface of tapered optical element 40 and optical fiber 50.
In a preferred embodiment, the refractive index match medium is the silicones 60 of little sealing, and it is injected into the center of unitor during fabrication, and can not solidify or become dry before use.With the contact of relative surface optical device after, encapsulant ruptures, and the refractive index match medium contacts with optical device.In the preferred embodiment, refractive index match medium 60 is inserted into the optical interface place between the respective face of tapered optical element 40 surfaces and optical fiber 50.
In another embodiment, the refractive index match medium is a kind of silicone resin film, and it is the part of transparent hollow insert 10.After shrinkage clamps,, enough big energy provides the connection medium to allow it fully to flow thereby being delivered to film.
Referring to Fig. 4, there is shown and carry out shrinkage clamp operation unitor of the present invention afterwards.After tapered optical element 40 and optical cable 50 inserts in the unitors, by metal tube 20 and unitor 10 shrinkages being clamped in the first shrinkage pinch zones 31 and the second shrinkage pinch zones, 32 places, and they are mechanically fixing.
Fig. 5 shows the second embodiment of the present invention, and the silicones 61 of wherein little sealing is embedded into or is injected in the attachment section 16 of clear hollow plug-in unit.As shown in Figure 6, in the shrinkage clamping process, some micro-capsules break and discharge the silicones 60 of refractive index match.This refractive index match silicones 60 is connected with the opposite face optics of tapered optical element 40 and optical fiber 50.
Use unitor of the present invention, adopt following steps, tapered optical element and optical fiber are linked together.At first, tapered optical element 40 is inserted the first opening round nose of unitors, and contact with first group of grapple 11.Secondly, optical fiber 50 is inserted the second opening round nose of unitors, and contact with second group of grapple 12.At last, shrinkage clamps unitor and outside metal tube 20, so that mechanically fixedly tapered optical element 40 and optical fiber 50.
Other optional embodiment
Under the condition that does not depart from spirit of the present invention or scope, can design other optional embodiment.
Claims (15)
1, a kind of fiber optic connector that is used to connect tapered optical element, described unitor comprises:
A) has the metal tube (20) of inner peripheral surface, the first opening round nose, the second opening round nose and central axis; With
B) be arranged on clear hollow plug-in unit (10) in the inner peripheral surface of described metal tube, described hollow insert comprises:
I) extend the input taper (15) of first preset distance from the described first opening round nose along described central axis, described taper comprises first group of a plurality of grapple (11), each described inner peripheral surface from described metal tube in described first group of a plurality of grapple radially extends, and described first group of a plurality of grapple limit jointly from the first of the extended cone of the described first opening round nose
Ii) from place apart from described first preset distance of the first opening round nose, and go out the attachment areas (16) of second preset distance along described extension of central axis, the radial thickness of described attachment areas limit from the second portion of the extended described cone of the described first opening round nose and
Iii) extend to the constant area region (17) of the described second opening round nose along described axis, described constant area region comprises second group of a plurality of grapple (12), and wherein each in second group of a plurality of grapple radially extended the 3rd preset distance from described inner peripheral surface.
2, be combined with the unitor according to claim 1 that is inserted into the tapered optical element in the described first opening round nose and is inserted into the optical fiber in the described second opening round nose, the distortion of wherein said metal tube is fixed so that tapered optical element and optical fiber aligned.
3, subassembly according to claim 2 further comprises refractive index match medium (60), the opposite face optical communication of itself and described tapered optical element and described optical fiber.
4, subassembly according to claim 3, wherein said refractive index match medium is micro-encapsulated silicones.
5, unitor according to claim 1, wherein said metal tube have about 5.7 millimeters external diameter and about 5.2 millimeters internal diameter.
6, unitor according to claim 1, wherein said clear hollow plug-in unit comprises silicones.
7, the method for a kind of connection tapered optical element (40) and optical fiber (50) may further comprise the steps:
A) will have than described tapered optical element more the clear hollow plug-in unit (10) of low-refraction be arranged in the inner peripheral surface of deformable tube (20) with the first opening round nose and second opening round nose, described clear hollow plug-in unit has:
I) comprise input taper (15) from the radially extended first group of a plurality of grapple of the inner peripheral surface of described deformable tube (11),
Ii) local initial from the described first opening round nose, first preset distance of distance, and go out the attachment areas (16) of second preset distance along the extension of central axis of described deformable tube, and
The constant area region (17) that iii) comprises the second group of a plurality of grapple (12) that radially extend from the inner peripheral surface of described deformable tube;
B) described tapered optical element is inserted the described first opening round nose of described deformable tube, and contacted with described first group of a plurality of grapple;
C) described optical fiber is inserted the described second opening round nose of described deformable tube, and contact with described second group of a plurality of grapple; And
D) clamp described deformable tube in described first group and second group of a plurality of grapples place's shrinkage, so that mechanically fix this tapered optical element and optical fiber.
8, method according to claim 7 further may further comprise the steps:
A) between the surface of described tapered optical element and the respective surfaces of described optical fiber, refractive index match medium (60) is set.
9, method according to claim 7, wherein the shrinkage step that clamps described deformable tube further comprises:
A) the local shrinkage at the contiguous described first group of a plurality of grapple of the first shrinkage pinch zones clamps described deformable tube, thereby mechanically fixes described tapered optical element; And
B) the local shrinkage at the contiguous described second group of a plurality of grapple of the second shrinkage pinch zones clamps described deformable tube, thereby mechanically fixes described optical fiber.
10, method according to claim 6, wherein deformable tube is that the plug-in unit of metal tube and this clear hollow is molded silicone parts, and the described step that is provided with comprises:
A) contact with the moulding part insertion and with the inner peripheral surface of metal tube.
11, a kind of fiber optic connector that is used to connect convergent optical input device and optical fiber output unit, described unitor comprises:
A) deformable tube; With
B) be arranged within the described pipe and in abutting connection with the hollow silicone insert of the inside surface of described pipe, described silicone insert comprises:
I) have the convergent input field of the first group of grapple that radially extends internally, and the convergent optical input device extends in this zone,
The constant radius output area that ii) has the second group of grapple that radially extends internally, and the optical fiber output unit extends in this zone and
The iii) attachment areas between described convergent input media and described constant radius output area, and the apparent surface of convergent optical input device and optical fiber output unit will be linked together in this zone.
12, fiber optic connector according to claim 11, wherein the tapering of the tapering of the convergent input field of silicone insert and convergent optical input device is complementary.
13, fiber optic connector according to claim 12, wherein said first group of grapple little by little is close together towards described attachment areas.
14, fiber optic connector according to claim 13, wherein said second group of grapple is equidistant each other in described constant radius output area.
15, fiber optic connector according to claim 11, wherein said deformable tube is a metal, and described hollow silicone insert is the moulding part of insertion and the described metal pipe internal surface of adjacency.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43988603P | 2003-01-14 | 2003-01-14 | |
| US60/439,886 | 2003-01-14 | ||
| US10/752,397 | 2004-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1756978A true CN1756978A (en) | 2006-04-05 |
Family
ID=36691482
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480005864 Pending CN1756978A (en) | 2003-01-10 | 2004-01-09 | Coupling a tapered optical element to an optical fiber |
| CN 200480006922 Pending CN1761895A (en) | 2003-01-14 | 2004-01-12 | Homogenizer for collimated light with controlled high angle scatter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480006922 Pending CN1761895A (en) | 2003-01-14 | 2004-01-12 | Homogenizer for collimated light with controlled high angle scatter |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1756978A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008000150A1 (en) * | 2006-06-22 | 2008-01-03 | Wuhan Telecommunication Devices Co., Ltd. | Ceramic sleeve |
| CN101846765A (en) * | 2009-02-13 | 2010-09-29 | 富士胶片株式会社 | Photoconduction, light source and endoscopic system |
| CN102331600A (en) * | 2011-10-17 | 2012-01-25 | 深圳朗光科技有限公司 | Optical fiber and high-power optical fiber device |
| CN103513339A (en) * | 2012-06-29 | 2014-01-15 | 欧姆龙株式会社 | Head for fiber optic optoelectronic switch |
| CN105700156A (en) * | 2014-12-16 | 2016-06-22 | 赛洛米克斯股份有限公司 | Optic homogenizer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9285531B2 (en) * | 2008-08-08 | 2016-03-15 | 3M Innovative Properties Company | Lightguide having a viscoelastic layer for managing light |
| CN102313999A (en) * | 2010-07-07 | 2012-01-11 | 北京中视中科光电技术有限公司 | Device for weakening laser speckle |
| CN109765725B (en) * | 2019-03-26 | 2021-04-06 | 合肥京东方光电科技有限公司 | Collimation film, collimation backlight module, display module and display device |
-
2004
- 2004-01-09 CN CN 200480005864 patent/CN1756978A/en active Pending
- 2004-01-12 CN CN 200480006922 patent/CN1761895A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008000150A1 (en) * | 2006-06-22 | 2008-01-03 | Wuhan Telecommunication Devices Co., Ltd. | Ceramic sleeve |
| CN101846765A (en) * | 2009-02-13 | 2010-09-29 | 富士胶片株式会社 | Photoconduction, light source and endoscopic system |
| CN101846765B (en) * | 2009-02-13 | 2013-11-27 | 富士胶片株式会社 | Light guide, light source apparatus and endoscope system |
| CN102331600A (en) * | 2011-10-17 | 2012-01-25 | 深圳朗光科技有限公司 | Optical fiber and high-power optical fiber device |
| CN102331600B (en) * | 2011-10-17 | 2016-01-20 | 深圳朗光科技有限公司 | A kind of optical fiber and large-power optical fiber device |
| CN103513339A (en) * | 2012-06-29 | 2014-01-15 | 欧姆龙株式会社 | Head for fiber optic optoelectronic switch |
| CN103513339B (en) * | 2012-06-29 | 2015-08-19 | 欧姆龙株式会社 | The head of fiber optic optoelectronic switch |
| CN105700156A (en) * | 2014-12-16 | 2016-06-22 | 赛洛米克斯股份有限公司 | Optic homogenizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1761895A (en) | 2006-04-19 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |