CN2522880Y - Optical fiber collimating apparatus - Google Patents
Optical fiber collimating apparatus Download PDFInfo
- Publication number
- CN2522880Y CN2522880Y CN 01258256 CN01258256U CN2522880Y CN 2522880 Y CN2522880 Y CN 2522880Y CN 01258256 CN01258256 CN 01258256 CN 01258256 U CN01258256 U CN 01258256U CN 2522880 Y CN2522880 Y CN 2522880Y
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- China
- Prior art keywords
- optical fiber
- sleeve pipe
- contact pins
- grin lens
- optic collimator
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Abstract
An optical fiber collimating device comprises an optical fiber, an optical fiber contact pin, a graded-index lens and a first sleeve as well as a second sleeve. The optical fiber contact pin is fundamentally of a column shape and used for holding and fixing the optical fiber; the graded-index lens is also fundamentally of a column shape and used for collimating inputting and outputting the beam of the optical fiber; the first sleeve is used for holding and fixing the graded-index lens while the second sleeve with one end provided with a plurality of welding hole is used for sleeving and fixing the optical fiber contact pin and the first sleeve. The sleeved first sleeve and second sleeve, after the relative position of the optical fiber contact pin and the GRIN lens is adjusted, are fixed through welding the welding holes.
Description
[technical field]
The utility model is about a kind of fiber optic collimator device, refers to the good relative positioning of tool between a kind of optical fiber contact pins and the GRIN Lens especially, the fiber optic collimator device that optical property is comparatively stable.
[background technology]
Owing to optical fiber tool wideband, low-loss, be not subjected to characteristic such as electromagnetic interference effect,, particularly bringing into play more and more important effect in the optical communication field in the light transmission field.Yet; light signal is after input optical fibre enters optical system; usually can carry out multiple optical effect through intrasystem optical device, involve as filtering, modulation, branch and close ripple etc., again via one or more output optical fibre output; because input optical fibre and output optical fibre are not same optical fiber; and the diameter of optical fiber less than the diameter of optical device, therefore, adopts the fiber optic collimator device to make flashlight collimation back input optical device usually during transmission; thereby reduce to insert loss, have very important meaning.
A kind of existing fiber collimator apparatus can be consulted Fig. 1, and this fiber optic collimator device comprises an optical fiber 101, an optical fiber contact pins 102, a GRIN Lens (Graded-Index Lens, GRIN Lens) 103, one quartz socket tube 109 and an outer tube 104.
This optical fiber contact pins 102 is used for fixing protection optical fiber 101; it is cylindric that optical fiber contact pins 102 roughly is; comprise that a biend and a diameter are slightly larger than the through hole 105 of optical fiber 101 diameters; one end face of this optical fiber contact pins 102 is planes; through hole 105 forms a pyramidal structure near this end; to make things convenient for optical fiber 101 to insert, this optical fiber contact pins 102 is that the inclination angle is the dip plane of 6 degree to 8 degree with respect to the other end 106 of pyramidal structure.Optical fiber 101 is immobilizated in the through hole 105 of optical fiber contact pins 102 by epoxy resin (Epoxy) or ultraviolet freezing plastic or other viscose glue, and tail end is concordant with dip plane 106.This GRIN Lens 103 roughly is cylindric, comprises that an inclination angle is about the inclined end faces 107 of 6 degree to 8 degree, and its pitch value is about 0.23, is used to collimate from the light beam of optical fiber 101 outputs or from the light beam of other optical device input optical fibre 101.It is cylindric that quartz socket tube 109 roughly is, and its slightly larger in diameter is in the diameter of optical fiber contact pins 102, in order to the part of this optical fiber contact pins 102 of suit fixing.Outer tube 104 is made by stainless steel, and its internal diameter equates with the external diameter of sleeve pipe 109, and the quartz socket tube 109 of suit fixing optical fiber contact pins 102 and GRIN Lens 103 parts.
During assembling, at first optical fiber 101 tail ends are removed protective seam, insert optical fiber contact pins 102 behind the gluing, and fix by viscose glue; With the relative position of ultraviolet freezing plastic 108 temporary transient fixedly collimation lenses 103 with optical fiber contact pins 102, next adopts bonding agent that optical fiber contact pins 102 is fixed in sleeve pipe 109; Assembly with these devices is inserted in the sleeve pipe 104 again, in stainless steel sleeve pipe 104 and optical fiber contact pins 102 and GRIN Lens 103 formed gaps, fill up 353NDT epoxy resin 110, wherein the flowability of 353NDT epoxy resin is better than the ultraviolet freezing plastic, so be easy to fill up this space.
This fiber optic collimator device is used to collimate the light beam from optical fiber 101 inputs, or the output beam of other optical device is collimated to optical fiber 101.Yet, the fixing epoxy bond mode that adopts of the assembling of collimation lens 103 and optical fiber contact pins 102, whole package program must use two kinds of different epoxy resin, it is respectively ultraviolet freezing plastic 108 and 353NDT epoxy resin 110, these two kinds of glue are long because of its stoving time when gluing, so it is long that product is made the cycle, and complex procedures.108 of ultraviolet freezing plastics are in the side of collimation lens 103 and optical fiber contact pins 102 contact portions, easily infiltrate the composition surface of collimation lens 11 and optical fiber contact pins 102, thus influence light signal advance, increase loss.Simultaneously, 353NDT epoxy resin 110 coats the side of whole collimation lens 103 and optical fiber contact pins 102, makes 353NDT epoxy resin 110 consumptions many, increases material cost.Because the thermal expansivity of 353NDT epoxy resin and ultraviolet freezing plastic is respectively 4.7 * 10
-5/ ℃, 4.3 * 10
-5/ ℃, be collimation lens 103 and optical fiber contact pins 102 thermal expansivity 3-4 doubly, in the baking processing procedure, because of the thermal stress distribution inequality, the thermal strain difference that is produced, can make the instability that is connected of collimation lens 103 and optical fiber contact pins 102, its performance produces variation, causes the height inefficacy in product assembling back unstable properties and the reliable test.In addition, the water absorptivity of viscose glue also can influence the whole optical property of collimator apparatus.
Therefore, provide a kind of optical fiber contact pins and the good relative positioning of GRIN Lens tool, assembling is quick, and optical property is not subject to the low-cost optical fiber collimator apparatus of ectocine in fact for necessary.
[summary of the invention]
The purpose of this utility model is to provide a kind of fiber optic collimator device, its assembling process consuming time little, cost is low, and optical stability is preferable.
The purpose of this utility model is achieved in that provides a fiber optic collimator device to comprise an optical fiber, an optical fiber contact pins, a GRIN Lens, first sleeve pipe and second sleeve pipe.It is cylindric that this optical fiber contact pins roughly is, and is used to accommodate this optical fiber of fixing.It is cylindric that this GRIN Lens roughly is, and is used to the light beam that collimates the input, export this optical fiber, and wherein first sleeve pipe is used for suit fixing GRIN Lens, and second sleeve pipe is used for this optical fiber contact pins of suit fixing, and the one end is laid a plurality of welding holes.With first sleeve pipe, the second sleeve pipe socket, and the suitable spacing of tool between optical fiber contact pins and GRIN Lens, fixing by the welding hole welding after adjustment.
Compared with prior art, the utlity model has following advantage: the fixedly employing welding between GRIN Lens and optical fiber contact pins is finished, it is few to expend man-hour, and owing to do not adopt viscose glue fixedly GRIN Lens and optical fiber contact pins, GRIN Lens and optical fiber contact pins faying face do not have epoxy resin and coat, can not produce the strike-through problem, and the thermal expansivity of the thermal expansivity of scolding tin and stainless steel sleeve pipe and optical fiber contact pins and GRIN Lens is close, thereby greatly improve its stability, guarantee that the whole optical property of fiber optic collimator device is not subject to ectocine.
[description of drawings]
Fig. 1 is the sectional view of existing fiber collimator apparatus.
Fig. 2 is the stereographic map of the utility model fiber optic collimator device first embodiment.
Fig. 3 is the utility model fiber optic collimator device first embodiment three-dimensional exploded view.
Fig. 4 is the half-finished stereographic map of the utility model fiber optic collimator device first embodiment.
Fig. 5 is the sectional view of the utility model fiber optic collimator device first embodiment.
Fig. 6 is the optical fiber contact pins sectional view of the utility model fiber optic collimator device second embodiment.
[embodiment]
See also Fig. 2 and Fig. 3, the utility model fiber optic collimator device first embodiment comprises an optical fiber 201, an optical fiber contact pins (being commonly referred to kapillary) 202, a GRIN Lens 203, first sleeve pipe 208 and second sleeve pipe 204.
See also Fig. 5, this optical fiber contact pins 202 roughly is cylindric, comprises that biend and runs through inner through hole 205.One end face of this optical fiber contact pins 202 is the plane, and other end 206 is that the inclination angle is the dip plane of 6 degree to 8 degree, and through hole 205 is provided with a pyramidal structure near the place, plane, inserts optical fiber contact pins 202 in order to optical fiber 201.The front end of optical fiber 201 is immobilizated in the optical fiber contact pins 202 by epoxy glue after removing protective seam, and its end flushes with the dip plane 206 of optical fiber contact pins 202.
This GRIN Lens 203 adopts glass material to make, and roughly is cylindric, and pitch is about 0.23, is used to collimate the light beam from optical fiber 201 outputs, comprises that an inclination angle is about the inclined end face 207 of 6 degree to 8 degree.
See also Fig. 4; during assembling; fix by the through hole 205 of pyramidal structure insertion optical fiber contact pins 202 after at first optical fiber 201 tail ends being removed protective seam and gluing, optical fiber 201 end faces flush with the dip plane 206 of optical fiber contact pins 202, and this end face 206 is worn into the dip plane of 6 degree to 8 degree.Its outside surface inferior to optical fiber contact pins 202 is coated with a small amount of epoxy resin; by this epoxy resin optical fiber contact pins 202 is immobilizated in second sleeve pipe 204; and second sleeve pipe, 204 parts are reserved in the tail end of optical fiber contact pins 202; form a circular groove 210, can protect the optical fiber 201 of close contact pin 202 afterbodys in these circular groove 210 fillers.Smear a small amount of epoxy resin at the cylinder of GRIN Lens 203, GRIN Lens 203 is immobilizated in first sleeve pipe 208, and GRIN Lens 203 two ends protrude out outside first sleeve pipe 208 by this epoxy resin.First sleeve pipe 208 that will be equipped with GRIN Lens 203 at last inserts an end that offers a plurality of welding holes 209 of second sleeve pipe 204 that is equipped with optical fiber contact pins 202, the inclined-plane 206 of the inclined-plane 207 adjacent fiber contact pins 202 of GRIN Lens 203 and keep two inclined-planes parallel wherein, after mobile first sleeve pipe 208 is adjusted to the appropriate location, by welding the two is fixed by welding hole 209.
Seeing also Fig. 6, is the optical fiber contact pins sectional view of the utility model fiber optic collimator device second embodiment.The structure of this fiber optic collimator device is identical substantially with the first embodiment fiber optic collimator device, but, in this fiber optic collimator device, adopt two optical fiber contact pins 302 to replace single fiber contact pin 202, to realize two fiber optic collimator effects.This pair optical fiber the 301, the 301st, symmetry are immobilizated in two optical fiber contact pins 302.
The utility model fiber optic collimator device the 3rd, the 4th embodiment and first, second example structure are basic identical, difference is that the internal diameter of first sleeve pipe 208 of this two embodiment is slightly less than the diameter of GRIN Lens 203, and heavy wall end 2041 internal diameters of second sleeve pipe 204 also are slightly less than the external diameter of optical fiber contact pins 202; By heating this expand first sleeve pipe 208 and second sleeve pipe 204 its internal diameter is increased, and then GRIN Lens 203 and optical fiber contact pins 202 inserted two sleeve pipes respectively, first sleeve pipe 208 and second sleeve pipe, 204 cooling backs are about to GRIN Lens 203 and optical fiber contact pins 202 fixings respectively.
Be appreciated that the utility model is not limited to single fiber or two fiber optic collimator device, is equally applicable to adopt the collimator apparatus of many optical fiber contact pins.
Claims (11)
1. fiber optic collimator device, it comprises at least one optical fiber, an optical fiber contact pins, a GRIN Lens, one first sleeve pipe and one second sleeve pipe, wherein this optical fiber contact pins is accommodated this at least one optical fiber of fixing, this GRIN Lens and this optical fiber relative positioning, it is characterized in that this first sleeve pipe accommodates this GRIN Lens of fixing, this this optical fiber contact pins of second sleeve pipe fixing and first sleeve pipe, and this second sleeve pipe, one end is offered a plurality of welding holes, and first sleeve pipe and second sleeve pipe are connected by these a plurality of welding hole welding.
2. fiber optic collimator device as claimed in claim 1 is characterized in that the thermal expansivity of this first sleeve pipe and GRIN Lens is close.
3. fiber optic collimator device as claimed in claim 2 is characterized in that the length of this first sleeve pipe is slightly less than the length of GRIN Lens.
4. fiber optic collimator device as claimed in claim 1 is characterized in that the thermal expansivity of this second sleeve pipe and optical fiber contact pins is close.
5. fiber optic collimator device as claimed in claim 4 is characterized in that this second sleeve pipe and first sleeve pipe are that same material is made.
6. fiber optic collimator device as claimed in claim 1 is characterized in that this first casing inner diameter is slightly less than the external diameter of GRIN Lens.
7. fiber optic collimator device as claimed in claim 1 is characterized in that an end internal diameter of this second sleeve pipe fixing optical fiber contact pins is slightly less than the external diameter of optical fiber contact pins.
8. fiber optic collimator device as claimed in claim 6 is characterized in that this GRIN Lens is to insert this first sleeve pipe after adding this first sleeve pipe of thermal expansion, and first sleeve pipe cooling back is about to this GRIN Lens fixing.
9. fiber optic collimator device as claimed in claim 7 is characterized in that this optical fiber contact pins is to insert this second sleeve pipe after adding this second sleeve pipe of thermal expansion, and second sleeve pipe cooling back is about to this GRIN Lens fixing.
10. fiber optic collimator device as claimed in claim 1 is characterized in that this first casing inner diameter equals the external diameter of GRIN Lens.
11. fiber optic collimator device as claimed in claim 1 is characterized in that an end internal diameter of this second sleeve pipe fixing optical fiber contact pins equals the external diameter of optical fiber contact pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258256 CN2522880Y (en) | 2001-11-23 | 2001-11-23 | Optical fiber collimating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258256 CN2522880Y (en) | 2001-11-23 | 2001-11-23 | Optical fiber collimating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522880Y true CN2522880Y (en) | 2002-11-27 |
Family
ID=33666863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01258256 Expired - Fee Related CN2522880Y (en) | 2001-11-23 | 2001-11-23 | Optical fiber collimating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522880Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852900A (en) * | 2010-06-29 | 2010-10-06 | 上海大学 | Collimation-type optical fiber connector |
| CN103018919A (en) * | 2012-12-20 | 2013-04-03 | 江苏康莱特科技有限公司 | Optical fiber collimator with high-accuracy buffing machine concentricity |
| CN104991310A (en) * | 2015-07-23 | 2015-10-21 | 深圳市创鑫激光股份有限公司 | Liquid-cooled optical fiber collimator and laser |
| CN105652383A (en) * | 2016-03-10 | 2016-06-08 | 苏州伽蓝致远电子科技股份有限公司 | Optical fiber collimator |
| CN107976745A (en) * | 2017-10-26 | 2018-05-01 | 成都聚芯光科通信设备有限责任公司 | The collimater and its adjusting fixing means of a kind of micro module |
| CN109709453A (en) * | 2018-12-27 | 2019-05-03 | 广东电网有限责任公司佛山供电局 | A kind of ultraviolet light ultrasonic wave composite arc discharging detecting system |
| CN109884747A (en) * | 2019-02-26 | 2019-06-14 | 武汉锐科光纤激光技术股份有限公司 | Laser aligner and laser system |
| CN110286447A (en) * | 2019-07-05 | 2019-09-27 | 南京全信传输科技股份有限公司 | A kind of optical fiber beam expansion contact based on self-focusing lens |
| CN112327502A (en) * | 2020-09-28 | 2021-02-05 | 南京核安核能科技有限公司 | Detector collimator with opening adjustment |
-
2001
- 2001-11-23 CN CN 01258256 patent/CN2522880Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852900A (en) * | 2010-06-29 | 2010-10-06 | 上海大学 | Collimation-type optical fiber connector |
| CN103018919A (en) * | 2012-12-20 | 2013-04-03 | 江苏康莱特科技有限公司 | Optical fiber collimator with high-accuracy buffing machine concentricity |
| CN104991310A (en) * | 2015-07-23 | 2015-10-21 | 深圳市创鑫激光股份有限公司 | Liquid-cooled optical fiber collimator and laser |
| CN104991310B (en) * | 2015-07-23 | 2016-05-25 | 深圳市创鑫激光股份有限公司 | A kind of liquid-cooled optical fiber collimator and laser instrument |
| CN105652383A (en) * | 2016-03-10 | 2016-06-08 | 苏州伽蓝致远电子科技股份有限公司 | Optical fiber collimator |
| CN107976745A (en) * | 2017-10-26 | 2018-05-01 | 成都聚芯光科通信设备有限责任公司 | The collimater and its adjusting fixing means of a kind of micro module |
| CN109709453A (en) * | 2018-12-27 | 2019-05-03 | 广东电网有限责任公司佛山供电局 | A kind of ultraviolet light ultrasonic wave composite arc discharging detecting system |
| CN109884747A (en) * | 2019-02-26 | 2019-06-14 | 武汉锐科光纤激光技术股份有限公司 | Laser aligner and laser system |
| CN109884747B (en) * | 2019-02-26 | 2024-03-08 | 武汉锐科光纤激光技术股份有限公司 | Laser collimator and laser system |
| CN110286447A (en) * | 2019-07-05 | 2019-09-27 | 南京全信传输科技股份有限公司 | A kind of optical fiber beam expansion contact based on self-focusing lens |
| CN112327502A (en) * | 2020-09-28 | 2021-02-05 | 南京核安核能科技有限公司 | Detector collimator with opening adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |