CN103293592A - Optical fiber - Google Patents
Optical fiber Download PDFInfo
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- CN103293592A CN103293592A CN2012100529849A CN201210052984A CN103293592A CN 103293592 A CN103293592 A CN 103293592A CN 2012100529849 A CN2012100529849 A CN 2012100529849A CN 201210052984 A CN201210052984 A CN 201210052984A CN 103293592 A CN103293592 A CN 103293592A
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- optical fiber
- light
- face
- main body
- emitting diode
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Abstract
The invention provides an optical fiber which comprises a columnar body and an end portion. The end portion is opposite to a light emitting diode, light emitted by the light emitting diode enters the body of the optical fiber from the end portion, the end portion comprises a vertical end face which is located at the center position and a slope cutting face which is connected between the end face and a circumferential face of the body, light emitted by lateral end areas, with bigger emitting angles, of the light emitting diode are refracted into the body by the cutting face, and incidence angles of the light refracted in the lateral end of the body are increased. The light emitted by the lateral end areas, with the bigger emitting angles, of the light emitting diode are refracted into the body by the optical fiber, and the incidence angles of the light refracted in the lateral end of the body are increased, so that total reflection transmission of the light in the body is facilitated, meanwhile, the situation that the light is refracted out from the lateral end of the body by the optical fiber is avoided, and coupling light power of the optical fiber and the light emitting diode is further and greatly promoted.
Description
Technical field
The present invention relates to communication technique field, relate in particular to a kind of optical fiber that can promote with the light coupling efficient of light emitting diode.
Background technology
Data communication method commonly used comprises optical-fibre communications and twisted-pair feeder communication, wherein optical-fibre communications have long transmission distance, distortion little, disturbed little etc. advantage and be widely used.Optical-fibre communications uses light emitting diode as light sending device usually, and wherein the luminous power of the central area opposite side end regions of light emitting diode is higher and dispersion angle is concentrated relatively.The plane of existing unprocessed fiber end face for rectifying.For the bigger side zone of light emitting diode dispersion angle, the light that existing optical fiber can't be injected light emitting diode is directed to directional light or carries out total reflection.Therefore cause the waste of LED source, make the light coupling efficient of optical fiber and light emitting diode reduce.
Summary of the invention
In view of this, be necessary to provide the optical fiber of a kind of enough liftings with the light coupling efficient of light emitting diode.
The invention provides a kind of optical fiber, it comprises a columnar body and an end, this end is relative with a light emitting diode, the light that light emitting diode sends is in this end enters the main body of optical fiber, this end comprises vertically and at an end face of center and connect inclined cut face between the periphery of this end face and main body, the anaclasis that send in the side zone that described cut surface is bigger with the light emitting diode dispersion angle is gone in the main body and increased the incident angle that it is incident upon the main body side.
The anaclasis that send in the side zone that optical fiber of the present invention is bigger with the light emitting diode dispersion angle is gone in the main body and is increased the incident angle that it is incident upon the main body side, be conducive to light and in main body, carry out total reflection transmission and avoid simultaneously reflecting optical fiber from the side of main body, and then significantly promote the coupled optical power of optical fiber and light emitting diode.
Description of drawings
Fig. 1 is the stereographic map of the present invention's one preferred embodiments optical fiber.
Fig. 2 is the cut-open view on the optical fiber II-II direction shown in Figure 1.
Fig. 3 is the light path synoptic diagram of optical fiber shown in Figure 1 and light emitting diode.
The main element symbol description
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10 |
| The |
20 |
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21 |
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22 |
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221 |
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222 |
| Light emitting diode | 5 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
With reference to figure 1 and Fig. 2, optical fiber 1 comprises a columnar body 10 and an end 20 in the lump, and end 20 is relative with light emitting diode 5 in use, and the light that light emitting diode 5 sends is in end 20 enters the main body 10 of optical fiber 1.In the middle of present embodiment, described optical fiber 1 be single-mode fiber (single-mode fiber, SMF).
Described end 20 comprises vertically and at an end face 21 of center and connect a cut surface 22 between the cylindrical side of end face 21 and main body 10.In the middle of present embodiment, described optical fiber 1 forms above-mentioned cut surface 22 by cut.
Described cut surface 22 comprises and is connected on the end face 21 first cut surface 221 and is connected to second cut surface 222 on the main body 10.Described first cut surface 221 can be assumed to be the anchor ring that wire loop always forms around the axis rotation of main body 10, and has a less angle α between this straight line and the end face 21.Second cut surface 222 can be assumed to be the surfaces of revolution that another straight line forms around the rotation of the axis of main body 10, and has a less angle β between straight line and the end face 21.In the middle of present embodiment, described angle α is less than angle β.
With reference to figure 3, wherein the index path of undressed optical fiber 1 as shown in phantom in FIG., the index path of optical fiber 1 of the present invention is shown in solid line among the figure.For the light that send light emitting diode 5 central areas, the end face 21 of described optical fiber 1 enters in the main body 10 of optical fiber 1 and along the axis parallel transmission of main body 10, and then can avoid light that the central area sends because the energy loss that refraction produces.For the light that send in light emitting diode 5 side zones, first cut surface 221 of described optical fiber 1 and second cut surface 222 are refracted in the main body 10 and make its incident angle that is incident upon main body 10 sides increase.The incident angle that light is incident upon main body 10 sides increases, and then is conducive to light and carries out the total reflection transmission in main body 10, avoids simultaneously reflecting optical fiber 1 from the side of main body 10.Therefore, optical fiber 1 of the present invention can significantly promote the coupled optical power with light emitting diode 5.
Although preferred implementation of the present invention is illustrated and describes, those skilled in the art will realize, and can make various changes and improvements, and these do not exceed true scope of the present invention.Therefore expectation, the present invention are not limited to disclosed as the embodiment that realizes the optimal mode that the present invention is contemplated, and all embodiments that the present invention includes have in the protection domain of appended claims.
Claims (4)
1. optical fiber, it comprises a columnar body and an end, this end is relative with a light emitting diode, the light that light emitting diode sends is in this end enters the main body of optical fiber, it is characterized in that: this end comprises vertically and at an end face of center and connect inclined cut face between the periphery of this end face and main body, the anaclasis that send in the side zone that described cut surface is bigger with the light emitting diode dispersion angle is gone in the main body and increased the incident angle that it is incident upon the main body side.
2. optical fiber according to claim 1, it is characterized in that: described cut surface comprises second cut surface on the periphery that is connected to first cut surface on the end face and is connected to main body, described first cut surface is that wire loop rotates the surfaces of revolution that forms around the axis of main body always, and the angle between this straight line and the end face is α, described second cut surface can be assumed to be the surfaces of revolution that wire loop always forms around the axis rotation of main body and the angle between this straight line and the above-mentioned end face is β, and wherein angle α is less than angle β.
3. optical fiber according to claim 2, it is characterized in that: described optical fiber forms above-mentioned first cut surface and second cut surface by cut.
4. optical fiber according to claim 1, it is characterized in that: described optical fiber is a single-mode fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100529849A CN103293592A (en) | 2012-03-02 | 2012-03-02 | Optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100529849A CN103293592A (en) | 2012-03-02 | 2012-03-02 | Optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103293592A true CN103293592A (en) | 2013-09-11 |
Family
ID=49094778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100529849A Pending CN103293592A (en) | 2012-03-02 | 2012-03-02 | Optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103293592A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6301406B1 (en) * | 1997-05-07 | 2001-10-09 | The Furukawa Electric Co., Ltd. | Optical fiber with lens |
| US6415087B1 (en) * | 1997-06-04 | 2002-07-02 | Corning Laserton, Inc. | Polished fused optical fiber endface |
| US6445854B1 (en) * | 2000-06-02 | 2002-09-03 | Optical Switch Corporation | Optical fiber having first and second reflective surfaces and method of operation |
| US20090252454A1 (en) * | 2008-04-04 | 2009-10-08 | Francois Chenard | Fiber-optic termination with brewster angled tip |
| WO2010060936A1 (en) * | 2008-11-28 | 2010-06-03 | European Aeronautic Defence And Space Company Eads France | Tool holder including cooling means |
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2012
- 2012-03-02 CN CN2012100529849A patent/CN103293592A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6301406B1 (en) * | 1997-05-07 | 2001-10-09 | The Furukawa Electric Co., Ltd. | Optical fiber with lens |
| US6415087B1 (en) * | 1997-06-04 | 2002-07-02 | Corning Laserton, Inc. | Polished fused optical fiber endface |
| US6445854B1 (en) * | 2000-06-02 | 2002-09-03 | Optical Switch Corporation | Optical fiber having first and second reflective surfaces and method of operation |
| US20090252454A1 (en) * | 2008-04-04 | 2009-10-08 | Francois Chenard | Fiber-optic termination with brewster angled tip |
| WO2010060936A1 (en) * | 2008-11-28 | 2010-06-03 | European Aeronautic Defence And Space Company Eads France | Tool holder including cooling means |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |
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| WD01 | Invention patent application deemed withdrawn after publication |