CN104407418A - Lens optical fiber array coupling part - Google Patents
Lens optical fiber array coupling part Download PDFInfo
- Publication number
- CN104407418A CN104407418A CN201410707615.8A CN201410707615A CN104407418A CN 104407418 A CN104407418 A CN 104407418A CN 201410707615 A CN201410707615 A CN 201410707615A CN 104407418 A CN104407418 A CN 104407418A
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- China
- Prior art keywords
- lens
- fiber array
- optical fiber
- array
- lens arra
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- 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
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides a lens optical fiber array coupling part which comprises an optical fiber array, a lens array and a lens array shell, wherein the optical fiber array comprises a plurality of optical fibers which are fixed by an upper base plate and a lower base plate in a clamping manner; the lens array is of an integrated structure and comprises a plurality of lens units; the lens array shell is a rectangular frame with preset thickness; stepped square holes are formed in two sides of the rectangular frame; the stepped square holes in two sides are communicated with one another through communicating holes; the optical fiber array and the lens array are inserted into corresponding stepped square holes from two sides respectively; under the support and fixation effects of the lens array shell, each lens unit in the multiple lens units is aligned to corresponding optical fiber in the optical fiber array through the communicating holes. By adopting the lens array shell, efficient coupling and alignment of the lens array and the optical fiber array are achieved, light can be efficiently coupled and fed into the optical fiber array, and the coupling efficiency and the optical tolerance of the optical fiber array are improved.
Description
Technical field
The present invention relates to technical field of optical fiber communication, particularly relate to a kind of lens fiber array couples part.
Background technology
Along with the application of close wavelength-division multiplex technology and integrated photonic device, fiber array obtains as a kind of important optical device and payes attention to widely.Fiber array is the elemental device in optical communication, is mainly used in the connection of the devices such as dense wavelength division multiplexing system, optical cross connect, photoswitch, optical router, Optical Add Drop Multiplexer and optical fiber.Under normal circumstances, owing to there is model field unbalance, when semiconductor laser array and fiber array direct-coupling, very large Coupling power loss can be caused.Therefore, in order to improve signal to noise ratio (S/N ratio), the prolongation communication relaying length of light signal, the coupling efficiency of semiconductor laser array and fiber array must be improved.
Because in fiber array, number of fibers is more, traditional is no longer applicable by the lenticular method of processing definite shape on the termination of simple optical fiber.A kind of effective method lays microlens array between semiconductor laser array and fiber array, and scioptics array completes focusing function, and the luminous energy that array laser is sent is coupled into fiber array efficiently.But problem is, the method requires harshness to laying of microlens array, and the deviation of micro-locality can affect coupling efficiency to a great extent, thus have impact on the optics tolerance of coupling.
Summary of the invention
(1) technical matters that will solve
In view of above-mentioned technical matters, the invention provides a kind of lens fiber array couples part, to improve coupling efficiency and the optics tolerance of fiber array and lens arra.
(2) technical scheme
Lens fiber array couples part of the present invention comprises: fiber array, comprises some optical fiber, and these some optical fiber are sandwiched fixing by upper and lower substrate; Lens arra, is integrally-built lens, comprises several lens units; And lens arra sheath body, for having the rectangular frame of preset thickness, its both sides have step-like square opening, the step-like square opening of both sides is interconnected by intercommunicating pore, described fiber array and lens arra insert in corresponding step-like square opening from both sides respectively, under the support and fixation of this lens arra sheath body, each lens unit in several lens units described is all by intercommunicating pore and the corresponding optical fiber align in fiber array.
(3) beneficial effect
The efficient coupling that scioptics array sheath body of the present invention realizes lens arra and fiber array with aim at, make light be coupled into fiber array efficiently, thus improve coupling efficiency and the optics tolerance of fiber array.
Accompanying drawing explanation
Fig. 1 is the vertical view according to embodiment of the present invention lens fiber array couples part;
Fig. 2 is the front view according to embodiment of the present invention lens fiber array couples part;
Fig. 3 is the left view according to embodiment of the present invention lens fiber array couples part;
Fig. 4 is the right view according to embodiment of the present invention lens fiber array couples part;
Fig. 5 for the array couples of lens fiber shown in Fig. 1 part along A-A ' to cross sectional side view.
[component description]
1-fiber array;
101-optical fiber; 102-infrabasal plate;
103-upper substrate; 104-V type groove;
2-lens arra;
3-lens arra sheath body.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.It should be noted that, in accompanying drawing or instructions describe, similar or identical part all uses identical figure number.The implementation not illustrating in accompanying drawing or describe is form known to a person of ordinary skill in the art in art.In addition, although herein can providing package containing the demonstration of the parameter of particular value, should be appreciated that, parameter without the need to definitely equaling corresponding value, but can be similar to corresponding value in acceptable error margin or design constraint.The direction term mentioned in embodiment, such as " on ", D score, "front", "rear", "left", "right" etc., be only the direction with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate and is not used for limiting the scope of the invention.
In lens fiber array couples part of the present invention, realized the retrofit of lens arra and fiber array by micro-nano technology technique, and the scioptics array sheath body efficient coupling that realizes lens arra and fiber array with aim at.
In one exemplary embodiment of the present invention, provide a kind of lens fiber array couples part.Fig. 1 is the vertical view according to embodiment of the present invention lens fiber array couples part; Fig. 2 is the front view according to embodiment of the present invention lens fiber array couples part.Fig. 3 is the left view according to embodiment of the present invention lens fiber array couples part.Fig. 4 is the right view according to embodiment of the present invention lens fiber array couples part.
As shown in Figure 1 to 4, the present embodiment lens fiber array couples part comprises: fiber array 1, lens arra 2 and lens arra sheath body 3.Below respectively this three part is described in detail.
This fiber array 1 is made up of three parts: some optical fiber 101, and its quantity and spacing are determined as required, when manufacture craft allows, can be arbitrary value, be not limited to 8 shown in Fig. 1; Infrabasal plate 102, this infrabasal plate 102 is slab construction, and material is silicon or quartz.V-type groove array is carved with at the upper surface of infrabasal plate 102.Each optical fiber 101 in some optical fiber all embeds in the V-type groove 104 in this V-type groove array, is located by this V-type groove holding.Wherein, the degree of depth of V-type groove 104, side and infrabasal plate 102 upper surface angle are commercial standard (CS), or particular design as required.Optical fiber 101 cross section must have simultaneously 2 with the sidewall contact of V-type groove 104, to ensure the uniqueness of optical fiber 101 radial position.Upper substrate 103, this upper substrate 103 is slab construction, and material is silicon or quartz, and its width is consistent with the width of infrabasal plate 102.
Wherein, in light array 1, optical fiber 101, infrabasal plate 102 are fixed together by gluing the connecing of ultra-violet curing with upper substrate 103.
The integrally-built rod lens that lens arra 2 is is material with silicon or quartz or polymkeric substance or semiconductor material, can pass through injection molding technology, and photoetching and Micrometer-Nanometer Processing Technology or 3D print and prepare.The rod lens of wherein this entirety comprises several lens units, lens are sphere or aspheric design, the quantity of lens unit is identical with optical fiber 101 quantity, and lens unit spacing is identical with optical fiber 101 spacing in fiber array 1, and each lens unit is aimed at mutually with corresponding optical fiber.The inner side end of lens arra 2 should be identical with the inner side end size of fiber array 1, so that both are inserted in the step-like square opening of lens arra sheath body 3 by the later stage.
Fig. 5 for the array couples of lens fiber shown in Fig. 1 part along A-A ' to cross sectional side view.As shown in Figure 5, lens arra sheath body 3 is for having the rectangular frame of preset thickness, and there is step-like square opening inside, and the step-like square opening of both sides is interconnected by an intercommunicating pore.This lens arra sheath body 3 is made by injection molding technology, photoetching and Micrometer-Nanometer Processing Technology or nano zircite micropowder material.Fiber array 1 and lens arra 2 insert in corresponding step-like square opening from both sides respectively, thus lens arra sheath body 3 pairs of lens arras 2 and fiber array 1 play location and the effect of fixed support, make each lens unit in lens arra 2 by intercommunicating pore and the corresponding optical fiber align in fiber array 1.
The step-like square opening inwall of lens arra sheath body 3 has chamfering, and object is for the ease of embedding installing optical fibres array 1 and lens arra 2.The size of the inner intercommunicating pore of lens arra sheath body 3 should be clearance fit with fiber array 1 and lens arra 2, and the spacing of the end face outside of inner intercommunicating pore and lens arra sheath body 3 equals the thickness of lens arra 2, and the length of inner intercommunicating pore equals the focal length of lens.Can be air in inner intercommunicating pore, also can fill matching fluid.According to actual needs, lens arra sheath body 3 can add metal casing for welding or not adding metal casing for bonding in outside.
The matching fluid refractive index of wherein filling in the inner intercommunicating pore of lens arra sheath body 3 should between optical fiber 101 and the refractive index of lens unit, reduce due to the loss that Fresnel reflection phenomenon causes between lens arra 2 end face and fiber array 1 end face to play, improve coupling efficiency.
Under the effect of contraction of lens arra sheath body 3, each lens unit optical axis of lens arra 2 should be consistent with each optical fiber of corresponding fiber array 1, and lens arra 2 should be consistent with the focal length of lens with fiber array 1 spacing, be mapped in corresponding fiber core, to realize higher light efficiency coupling efficiency and large optics tolerance to guarantee can effectively be focused into through the luminous energy of each lens.
Wherein, fiber array 1, be connected together by ultra-violet curing is gluing between lens arra 2 and lens arra sheath body 3.
So far, by reference to the accompanying drawings a kind of lens fiber array couples of the present invention part has been described in detail.Describe according to above, those skilled in the art should have a kind of lens fiber array couples of the present invention part and have clearly been familiar with.
In addition, the above-mentioned definition to each element and method is not limited in various concrete structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can replace it with knowing simply, such as: intercommunicating pore can also be the multiple of corresponding different fiber respectively, and is not limited to the entirety one in above-described embodiment.Further, appended accompanying drawing simplified and illustratively used.Number of elements shown in accompanying drawing, shape and size can be modified according to actual conditions, and the configuration of element may be more complicated.
In sum, the object of the present invention is to provide a kind of lens fiber array couples part.This lens fiber array couples part realizes the retrofit of lens arra and fiber array by micro-nano technology technique, and the scioptics array sheath body efficient coupling that realizes lens arra and fiber array with aim at, make light be coupled into fiber array efficiently, thus improve coupling efficiency and optics tolerance.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a lens fiber array couples part, is characterized in that, comprising:
Fiber array, comprises by sandwiched some the fixing optical fiber of upper and lower substrate;
Lens arra, is integrally-built lens, comprises several lens units; And
Lens arra sheath body, for having the rectangular frame of preset thickness, its both sides have step-like square opening, the step-like square opening of both sides is interconnected by intercommunicating pore, described fiber array and lens arra insert in corresponding step-like square opening from both sides respectively, under the support and fixation of this lens arra sheath body, each lens unit in several lens units described is all by intercommunicating pore and the corresponding optical fiber align in fiber array.
2. lens fiber array couples part according to claim 1, it is characterized in that, the upper surface of described infrabasal plate has V-type groove array, each optical fiber in described some optical fiber embeds in the V-type groove in this V-type groove array, the cross section of this optical fiber have simultaneously 2 with the sidewall contact of this V-type groove, thus to be located by this V-type groove holding.
3. lens fiber array couples part according to claim 2, is characterized in that, the material of described upper substrate and infrabasal plate is silicon or quartz, and described some optical fiber, upper substrate and infrabasal plate are fixed together by ultra-violet curing glue.
4. lens fiber array couples part according to claim 1, is characterized in that, the optical axis coincidence of the optical fiber that each lens unit described is corresponding to fiber array; And lens unit is consistent with the spacing of corresponding optical fiber and the focal length of this lens unit.
5. lens fiber array couples part according to claim 4, is characterized in that, the material of described lens arra is quartz, polymkeric substance or semiconductor, and it is by injection molding technology, photoetching and Micrometer-Nanometer Processing Technology or the preparation of 3D printing technique.
6. lens fiber array couples part according to claim 4, is characterized in that, each lens unit of described lens arra is sphere or aspheric design, and the inner side end of described lens arra is identical with the inner side end size of fiber array.
7. lens fiber array couples part according to claim 1, it is characterized in that, in described lens arra sheath body, described intercommunicating pore is one or corresponds respectively to the multiple of different fiber, and is air or the matching fluid of refractive index between optical fiber and lens unit in intercommunicating pore.
8. lens fiber array couples part according to claim 1, is characterized in that, the step-like hole inwall of described lens arra sheath body has chamfering.
9. lens fiber array couples part according to claim 1, is characterized in that:
Described fiber array, to be connected together by ultra-violet curing is gluing between lens arra and lens arra sheath body;
The size of the intercommunicating pore of described lens arra sheath body inside and fiber array and lens arra are clearance fit, and the spacing of the end face outside of itself and lens arra sheath body equals the thickness of lens arra, and length equals the focal length of corresponding lens unit.
10. lens fiber array couples part according to any one of claim 1 to 9, is characterized in that:
Described lens arra sheath body by bonding mode and peripheral components fix; Or
Have metal casing outside described lens arra sheath body, its mode by welding and peripheral components are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707615.8A CN104407418A (en) | 2014-11-28 | 2014-11-28 | Lens optical fiber array coupling part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707615.8A CN104407418A (en) | 2014-11-28 | 2014-11-28 | Lens optical fiber array coupling part |
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| CN104407418A true CN104407418A (en) | 2015-03-11 |
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| CN201410707615.8A Pending CN104407418A (en) | 2014-11-28 | 2014-11-28 | Lens optical fiber array coupling part |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064060A (en) * | 2017-03-13 | 2017-08-18 | 中国人民解放军装备学院 | A kind of fiber array optic probe for the field measurement that burns |
| CN107976746A (en) * | 2017-12-12 | 2018-05-01 | 武汉光迅科技股份有限公司 | A kind of micro- pitch arrays collimaters of NXN |
| CN108089268A (en) * | 2018-02-09 | 2018-05-29 | 苏州德睿电力科技有限公司 | A kind of fiber array with lens-optical waveguide array parallel coupling adapter |
| CN109507774A (en) * | 2018-12-14 | 2019-03-22 | 南京吉隆光纤通信股份有限公司 | The contactless interim aligning coupler of ribbon fiber |
| CN110153417A (en) * | 2019-04-30 | 2019-08-23 | 大族激光科技产业集团股份有限公司 | A kind of laser formation equipment |
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| CN1480752A (en) * | 2002-09-06 | 2004-03-10 | 一品光学工业股份有限公司 | Method for manufacturing optical fiber collimator |
| CN102183824A (en) * | 2011-05-31 | 2011-09-14 | 潮州三环（集团）股份有限公司 | Two-dimensional optical fiber array with collimation lens |
| CN102854632A (en) * | 2012-08-16 | 2013-01-02 | 芜湖雅图数字视频技术有限公司 | Laser light source collimating device, collimating device array, lighting system and projection equipment |
| CN203414640U (en) * | 2013-06-14 | 2014-01-29 | 洛合镭信光电科技（上海）有限公司 | Coupling assembly, optical fiber array module employing coupling assembly and optical transceiver engine module employing coupling assembly |
| CN103885140A (en) * | 2014-04-15 | 2014-06-25 | 昆山柯斯美光电有限公司 | Chip array and parallel optical fiber passively-coupled optical assembly and assembling method of chip array and parallel optical fiber passively-coupled optical assembly |
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Patent Citations (5)
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| CN1480752A (en) * | 2002-09-06 | 2004-03-10 | 一品光学工业股份有限公司 | Method for manufacturing optical fiber collimator |
| CN102183824A (en) * | 2011-05-31 | 2011-09-14 | 潮州三环（集团）股份有限公司 | Two-dimensional optical fiber array with collimation lens |
| CN102854632A (en) * | 2012-08-16 | 2013-01-02 | 芜湖雅图数字视频技术有限公司 | Laser light source collimating device, collimating device array, lighting system and projection equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064060A (en) * | 2017-03-13 | 2017-08-18 | 中国人民解放军装备学院 | A kind of fiber array optic probe for the field measurement that burns |
| CN107976746A (en) * | 2017-12-12 | 2018-05-01 | 武汉光迅科技股份有限公司 | A kind of micro- pitch arrays collimaters of NXN |
| CN107976746B (en) * | 2017-12-12 | 2019-09-10 | 武汉光迅科技股份有限公司 | A kind of micro- pitch arrays collimator of NXN |
| CN108089268A (en) * | 2018-02-09 | 2018-05-29 | 苏州德睿电力科技有限公司 | A kind of fiber array with lens-optical waveguide array parallel coupling adapter |
| CN109507774A (en) * | 2018-12-14 | 2019-03-22 | 南京吉隆光纤通信股份有限公司 | The contactless interim aligning coupler of ribbon fiber |
| CN110153417A (en) * | 2019-04-30 | 2019-08-23 | 大族激光科技产业集团股份有限公司 | A kind of laser formation equipment |
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Application publication date: 20150311 |
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