CN104656197A - Miniature novel optical fiber collimator - Google Patents
Miniature novel optical fiber collimator Download PDFInfo
- Publication number
- CN104656197A CN104656197A CN201310598881.7A CN201310598881A CN104656197A CN 104656197 A CN104656197 A CN 104656197A CN 201310598881 A CN201310598881 A CN 201310598881A CN 104656197 A CN104656197 A CN 104656197A
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- CN
- China
- Prior art keywords
- optical fiber
- optical
- microlens
- fiber collimator
- miniature
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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 discloses a miniature novel optical fiber collimator. The miniature novel optical fiber collimator comprises an optical fiber head, an optical microlens and a connecting component. The miniature novel optical fiber collimator has the advantages as follows: the size of the optical fiber collimator can be reduced only by using a specially-designed connecting component, but the working performance of the collimator is not affected, so that the miniature novel optical fiber collimator with a small size and high performance is manufactured; the optical fiber head and the optical microlens are mutually connected through the specially-designed connecting component, and are well glued and packaged; the shape and the size of the connecting component are designed after gluing and packaging, the integral outside diameter of the miniature novel optical fiber collimator is not greater than those of the composing elements, namely the optical fiber head and the optical microlens, and no glue exists on an optical path, so that the working performance of the miniature novel optical fiber collimator is not affected; in addition, the connecting component is easy to manufacture and low in cost.
Description
Technical field
The present invention relates to the optical device used in a kind of optical-fibre communications, particularly a kind of micro-optical fiber collimator.
Background technology
In current fiber optic passive device, the most frequently used optical fiber collimator structure as shown in Figure 1.In figure, 101 is optical fiber, and 102 is that optical fiber 101 glues together with optical fiber capillaries the optical fiber head formed, and 103 is optical microlens, and it can be GRIN Lens, spherical lens or non-spherical lens.104 for being connected and fixed the sleeve pipe of optical fiber head 102 and optical microlens 103.Optical fiber head 102 exiting surface and optical microlens 103 plane of incidence wear into the clinoplane becoming about 82 ° with optical fiber head 102 with the central shaft of optical microlens 103, and plate anti-reflection film.Be enclosed within inside sleeve pipe 104 by optical fiber head 102 and optical microlens 103, the distance between fine setting optical fiber head 102 and optical microlens 103, is placed in the focus place of optical lens by the light-emitting window of optical fiber head, and blend compounds glues together, and namely makes optics collimator.
In current fiber optic passive device, sometimes also adopt another kind of optical fiber collimator, as shown in Figure 2.In figure, 101 is optical fiber, 102 is that optical fiber 101 glues together with optical fiber capillaries the optical fiber head formed, 103 is optical microlens, and same optical fiber head 102 exiting surface and optical microlens 103 plane of incidence wear into the clinoplane becoming about 82 ° with optical fiber head 102 with the central shaft of optical microlens 103.204 is index matching glue, and optical fiber head 102 exiting surface and optical microlens 103 plane of incidence all plate the anti-reflection film matched with glue-line.Glue-line 204 is very thin, and the light-emitting window of the distance just optical fiber head 102 between fine setting optical fiber head 102 and optical microlens 103 is placed in the focus of lens, and glue 204 solidifies, and connecting fiber 102 and optical microlens 103, namely make optics collimator.
Conventional fiber collimating apparatus profile diameter is generally: Φ about 1.4 ~ 2.8mm, when require size less and retention good collimating apparatus time, will major defect be there is in above traditional structure.
Such as, for onesize element (optical fiber head and optical microlens), if adopt the traditional collimator structure shown in Fig. 1, the fixed sleeving used can increase the overall dimensions of collimating apparatus undoubtedly greatly, inadvisable; Secondly, according to the traditional collimator structure of another shown in Fig. 2, directly got up by the face, oblique angle of optical fiber head and optical microlens gummed with glue, increase though can remove the size that fixed muffle causes, light signal can affect the serviceability of device from glue-line by (light path has glue).So traditional collimator structure shown in Fig. 2 reduces serviceability for cost is to realize the reduction of collimator size, is not best solution.
Summary of the invention
The object of this invention is to provide a kind of micro-optical fiber collimator, make the optical fiber collimator size made less, and do not affect the serviceability of device.Make easily, cost is low.It comprises optical fiber head, optical microlens and web member.
Advantage of the present invention is: only need the web member of a particular design namely can realize reducing the size of optical fiber collimator, do not affect again the object of collimating apparatus serviceability, thus produce the good micro-optical fiber collimator of the little performance of size.Web member with particular design between optical fiber head and optical microlens is interconnected, and glues together encapsulation well.The design of web member shape and size is after gummed encapsulation, and the entire outer diameter of device is not more than the external diameter of its element and optical fiber head and optical microlens, and light path does not have glue, does not affect its serviceability.In addition, the processing of web member is simple, cost is low.
Accompanying drawing explanation
Fig. 1 is traditional fiber collimator structure schematic diagram;
Fig. 2 is another kind of optical fiber collimator structure schematic diagram;
Fig. 3 is micro-optical fiber collimator structural representation of the present invention.
Embodiment
As shown in Fig. 1, Fig. 2 and Fig. 3: micro-optical fiber collimator has optical fiber head (102), optical microlens (103) and web member (304).The plane of incidence of said optical microlens is clinoplane, and the angle of its face normal and optical microlens main shaft is 6 ~ 12 °.The exit facet of optical microlens is perpendicular to main shaft, and its shape is plane, sphere, counterfeit sphere or aspheric surface.
The exiting surface of optical fiber head is clinoplane, and its inclination angle is equal with the inclination angle of the optical microlens plane of incidence.The exiting surface of optical fiber head and the optical microlens plane of incidence and exit facet plate anti-reflection film.
Web member is packing ring or pad, and its thickness is less than the distance between optical fiber head exiting surface and the optical microlens plane of incidence, and external diameter is less than or equal to the diameter of optical fiber head and optical microlens, and internal diameter is greater than the clear aperture near main shaft.
Web member glues together with between optical fiber head exiting surface and the optical microlens plane of incidence be connected with epoxy resin (305), (306).The material of its web member is metal, pottery or glass.
Micro-optical fiber collimator specific embodiment of the present invention as shown in Figure 3, wherein 101 is optical fiber, 102 is that optical fiber 101 glues together with optical fiber capillaries the optical fiber head formed, its exiting surface keeps 6 ~ 12 ° of pitch angle, optical microlens 103 is also with 6 ~ 12 ° of pitch angle, and the exiting surface of optical microlens 103 is perpendicular to the plane of lens principal axis or curved surface (sphere, aspheric surface or other face shape).Optical fiber head 102 can be metal, pottery, glass etc.; The shape of web member 304 is annular thin slice, its thickness is slightly less than the designed distance between optical fiber head 102 exiting surface and optical microlens 103 plane of incidence, like this when web member to be between optical fiber head 102 exiting surface and optical microlens 103 plane of incidence blend compounds fixing after, optical fiber head 102 light-emitting window is just in time positioned at the focus place of optical microlens 103, makes light by exporting as collimated light beam after lenticule; The external diameter of web member 304 is less than or equal to the diameter of optical fiber head 102 and optical microlens 103, is not more than the diameter of optical fiber head 102 and optical microlens 103 with the external diameter ensureing to glue together rear optical fiber collimator; The internal diameter of web member 304 is greater than the clear aperature between optical fiber head 102 exiting surface and optical microlens 103 plane of incidence, during point glue, due to capillary effect, liquid glue automatically can infiltrate web member and the joint between optical fiber head exiting surface and the optical microlens plane of incidence, i.e. on the anchor ring of web member, and be full of whole anchor ring and make gummed good, and the center of anchor ring does not have glue infiltration, ensure like this clear aperature does not have glue, do not affect the serviceability of optical fiber collimator.
When making collimating apparatus, first web member 304 and optical microlens 103 plane of incidence are glued together.Fine setting web member 304 position is located at lenticule 103 plane of incidence center, and glue 306 solidifies; Again this gummed part and optical fiber head 102 exiting surface are glued together, distance between fine setting gummed part and optical fiber head 102, make optical fiber head 102 light-emitting window be positioned at optical microlens 103 focus place, glue 305 solidifies, connect virgin rubber component and optical fiber head 102, namely make micro-optical fiber collimator of the present invention.Otherwise, change gummed sequencing and also can.First web member 304 and optical fiber head 102 exiting surface can be glued together, fine setting web member 304 position is located at optical fiber head 102 exiting surface center, glue 305 solidifies, again this gummed part and optical microlens 103 plane of incidence are glued together, distance between fine setting gummed part and optical microlens 103, make optical fiber head 102 light-emitting window be positioned at optical microlens 103 focus place, glue 306 solidifies, connect virgin rubber component and optical microlens 103, namely make micro-optical fiber collimator of the present invention.
Claims (4)
1. a micro-optical fiber collimator, it is characterized in that: it comprises optical fiber head (102), optical microlens (103) and web member (304), the exit facet of optical microlens is perpendicular to main shaft, its shape is plane, sphere, counterfeit sphere or aspheric surface, and the material of web member is metal, pottery or glass.
2. the micro-optical fiber collimator of one according to claim 1, is characterized in that: the plane of incidence of optical microlens is clinoplane, and the angle of its face normal and optical microlens main shaft is 6 ~ 12 °.
3. the micro-optical fiber collimator of one according to claim 1, is characterized in that: the exiting surface of optical fiber head is clinoplane, and its inclination angle is equal with the inclination angle of the optical microlens plane of incidence.
4. the micro-optical fiber collimator of one according to claim 1, is characterized in that: the exiting surface of optical fiber head and the optical microlens plane of incidence and exit facet plate anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598881.7A CN104656197A (en) | 2013-11-21 | 2013-11-21 | Miniature novel optical fiber collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598881.7A CN104656197A (en) | 2013-11-21 | 2013-11-21 | Miniature novel optical fiber collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104656197A true CN104656197A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310598881.7A Pending CN104656197A (en) | 2013-11-21 | 2013-11-21 | Miniature novel optical fiber collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104656197A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467521A (en) * | 2015-12-10 | 2016-04-06 | 黄丽婷 | An adjustable optical attenuation type wavelength division multiplexer and an attenuation degree adjusting method |
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
-
2013
- 2013-11-21 CN CN201310598881.7A patent/CN104656197A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467521A (en) * | 2015-12-10 | 2016-04-06 | 黄丽婷 | An adjustable optical attenuation type wavelength division multiplexer and an attenuation degree adjusting method |
| CN105467521B (en) * | 2015-12-10 | 2018-08-14 | 黄丽婷 | A kind of variable optical attenuation type wavelength division multiplexer and dough softening adjusting method |
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |