CN211426856U - Optical device structure with lens and glue on optical path - Google Patents
Optical device structure with lens and glue on optical path Download PDFInfo
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- CN211426856U CN211426856U CN201921774517.0U CN201921774517U CN211426856U CN 211426856 U CN211426856 U CN 211426856U CN 201921774517 U CN201921774517 U CN 201921774517U CN 211426856 U CN211426856 U CN 211426856U
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Abstract
The utility model discloses an optical path has glued optical device structure with lens, including first optical fiber device and second optical device, optical signal coupling between first optical fiber device and the second optical device, through the glue solidification of low refracting index to fill in between the optical signal coupling position of first optical device and second optical device and seal. The utility model discloses can reduce or even stop external environment and influence the transmission of light signal, external environment influence factor includes dust, aqueous vapor, fog face and frost etc to ensure optical communication's stability.
Description
Technical Field
The utility model relates to an optical fiber information transmission field, in particular to light path has glued optical device structure with lens.
Background
With the application of dense wavelength division multiplexing technology and integrated photonic devices, optical fiber arrays have gained wide attention as an important optical device. The optical fiber array is a basic device in optical communication and is mainly applied to the connection of devices such as a dense wavelength division multiplexing system, an optical cross connection, an optical switch, an optical router, an optical add-drop multiplexer and the like and optical fibers. In order to improve the coupling efficiency between the optical device and the optical fiber array, an effective method is to place a lens between the optical device array and the optical fiber array, and to implement the focusing function through the lens, so that the light emitted by the optical device can be efficiently coupled into the optical fiber array.
In the field of optical communications, it is often necessary to use devices such as fiber collimators to collimate the output of a single mode optical fiber. At present, in an optical crossbar switch, a wavelength selective switch, or the like, a collimator generally used is a collimator with a lens.
Due to the existence of dust, moisture, fog, frost and the like, the coupling of the optical device array and the optical fiber array and the collimation of the single-mode optical fiber are affected to different degrees.
Dust can seriously increase the attenuation of the optical fiber, and the defects of data error codes and the like occur;
in the long-term use process of the optical fiber, the optical fiber is in a water vapor environment, and on one hand, moisture can cause hydrogen loss to the optical fiber, so that the optical fiber is cracked or even broken; on the other hand, the service life of other materials in the optical fiber is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a light path has gluey optical device structure with lens to reduce or even stop external environment and influence the transmission of light signal. In order to solve the technical problem, the utility model provides a following technical scheme:
the optical device structure with the lens and the glue on the optical path comprises a first optical fiber device and a second optical device, wherein optical signals are coupled between the first optical fiber device and the second optical device, and the optical device structure is characterized in that the coupling parts of the optical signals of the first optical device and the second optical device are solidified, filled and sealed by the glue with low refractive index.
Furthermore, the first optical device is an optical fiber array, one end of the optical fiber array is provided with a triangular prism with a lens, the second optical device is an active optical device, and after the triangular prism with the lens is coupled with the optical device, the interval between the lens and the optical device is filled and sealed by low-refractive-index glue.
Further, the first optical device is an optical fiber array, the second optical device is a triangular prism, and after the optical fiber array is coupled with the triangular prism, the intermittent filling and closing between the optical communication part of the optical fiber array and the triangular prism and the optical communication part of the triangular prism and the optical fiber array are performed by using low-refractive-index glue.
Further, the first optical device is an optical fiber head, the second optical device is an optical fiber collimator, and after the optical fiber head is coupled with the optical fiber collimator, the intermittent filling and sealing between the optical communication part of the optical fiber head and the optical communication part of the optical fiber collimator and the optical fiber head are realized by using low-refractive-index glue.
Furthermore, the first optical device and the second optical device are respectively optical fiber collimators, and after the two optical fiber collimators are coupled, the gap of the optical communication part between the optical fiber collimators is filled and sealed by glue with low refractive index.
The refractive index of the low-refractive-index glue is 1.31-1.48.
The utility model discloses can reduce or even stop external environment and influence the transmission of light signal, external environment influence factor includes dust, aqueous vapor, fog face and frost etc to ensure optical communication's stability.
Drawings
Fig. 1 is a schematic coupling diagram of an optical fiber array, a triangular prism and an optical device to which the scheme of the present invention is applied;
fig. 2 is a schematic diagram of the coupling between the optical fiber array and the triangular prism variant using the solution of the present invention;
fig. 3 is a schematic diagram of the coupling between the optical fiber collimator and the optical fiber head according to the embodiment of the present invention;
fig. 4 is a schematic diagram of coupling of two optical fiber collimators to which the present invention is applied.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments of the present invention are based on the technical solution of the present invention and are described in detail, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1. Fig. 1 shows a case of applying the technical solution of the present invention to the optical fiber array 1 coupled through the triangular prism 15 and the optical device 16.
The optical fiber array 1 comprises a V-groove substrate 11, optical fibers 12 and a cover plate 13. The V-shaped groove substrate, the optical fiber and the cover plate are bonded together through curing glue to form the optical fiber array 1. One end of the optical fiber array 1 is provided with a triangular prism 15 with a lens 14, and the triangular prism 15 can be bonded to the end of the optical fiber array 1 through curing glue or the triangular prism 15 and the substrate 11 are directly manufactured into a whole. The optical device 16 is an active device that converts an optical signal into an electrical signal. After the triangular prism 15 with lens 14 is coupled to the optics 16, the intermittent packing between the lens 14 and the optics 16 is closed with a low index glue 17. The optical path direction of the lens 14 of the optical fiber array 1 is perpendicular to the optical path direction of the optical fiber array 1. The optical signal optical routing fiber array 1 is coupled to an optical device 16 through a triangular prism 15 with a lens 14; the optical signal path may also be coupled to the fiber array 1 by an optical device 16 through a triangular prism 15 with a lens 14. The optical fiber array 1 is connected with the fixed connection part of the optical device 16 at the cover plate part through glue for fixed connection.
As shown in fig. 2, fig. 2 shows a case of applying the technical solution of the present invention to the coupling of the optical fiber array 2 and the triangular prism.
The structure of the optical fiber array 2 is the same as that of the embodiment shown in fig. 1, and the V-groove substrate, the optical fiber, and the cover plate are denoted by 21, 22, and 23, respectively. The optical fiber array 2 is connected with the mounting connection position thereof at the cover plate position by glue for fixing connection, after the optical fiber array 2 is coupled with the triangular prism 25 with the lens 24, the triangular prism 25 is also fixed by the glue for fixing connection alone, and then, the intermittent filling and closing between the optical communication position of the optical fiber array 2 with the triangular prism 25 and the optical communication position of the triangular prism with the optical fiber array 2 is performed by the low refractive index glue 27.
The optical path direction of the lens 24 is parallel to the optical path direction of the optical fiber array 2. The optical signal light path can be coupled to a triangular prism 25 with a lens 24 by the optical fiber array 2 and then coupled to other optical devices; the optical signal path may also be coupled by optics to a triangular prism 25 with a lens 24 to the fiber array 2.
As shown in fig. 3, fig. 3 shows a case of applying the technical solution of the present invention to a fiber collimator and a fiber stub coupling.
The glass capillary 31 and the optical fiber 32 are bonded into a whole by curing glue to manufacture the optical fiber head, after the optical fiber collimator 30 with the lens 33 is coupled with the optical fiber head, the gap between the lens 33 of the collimator 30 and the optical fiber head 3 is filled and sealed by glue 34 with low refractive index. The optical signal path may be coupled to the fiber head by the fiber collimator 30 with the lens 33, or may be coupled to the fiber collimator 30 with the lens 33 by the fiber head. The fiber head and the fiber collimator 30 are fixed in their fixed positions by respective fixing structures.
As shown in fig. 4, fig. 4 shows a case of applying the technical solution of the present invention to the coupling of the optical fiber collimators 41 and 42.
After the two optical fiber collimators 41 and 42 with the lenses 43 and 44 respectively are coupled, the gap between the lenses 43 and 44 is filled and closed by glue 45 with low refractive index. The optical signal path may be coupled by a fiber collimator 41 with a lens 43 to a fiber collimator 42 with a lens 44, or the optical signal path may be coupled in reverse. The fiber collimators 41, 42 are fixed in their fixed positions by respective fixing structures.
The above description is only the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and therefore, the present invention is still included in the scope encompassed by the present invention.
Claims (6)
1. An optical device structure with a lens and glue on an optical path comprises a first optical device and a second optical device, wherein optical signals between the first optical device and the second optical device are coupled, and the optical device structure is characterized in that the coupling parts of the optical signals between the first optical device and the second optical device are solidified, filled and sealed by glue with low refractive index.
2. The structure of claim 1, wherein the first optical device is an optical fiber array, a triangular prism with a lens is disposed at one end of the optical fiber array, the second optical device is an active optical device, and after the triangular prism with a lens is coupled with the optical device, the interval between the lens and the optical device is filled and sealed by low-refractive index glue.
3. The structure of claim 1, wherein the first optical device is an optical fiber array, the second optical device is a triangular prism, and after the optical fiber array is coupled to the triangular prism, the intermittent filling and closing between the optical communication portion of the optical fiber array and the triangular prism and the optical communication portion of the triangular prism and the optical fiber array is performed by using the low refractive index glue.
4. The structure of claim 1, wherein the first optical device is an optical fiber head, the second optical device is an optical fiber collimator, and after the optical fiber head is coupled to the optical fiber collimator, the intermittent filling and closing between the optical communication portion of the optical fiber head and the optical communication portion of the optical fiber collimator and the optical fiber head is performed by using low refractive index glue.
5. The structure of claim 1, wherein the first optical device and the second optical device are fiber collimators, and after the two fiber collimators are coupled, the gap between the optical communication parts between the fiber collimators is filled and sealed by glue with low refractive index.
6. The structure of claim 1, wherein the low refractive index glue has a refractive index of 1.31-1.48.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774517.0U CN211426856U (en) | 2019-10-22 | 2019-10-22 | Optical device structure with lens and glue on optical path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774517.0U CN211426856U (en) | 2019-10-22 | 2019-10-22 | Optical device structure with lens and glue on optical path |
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| Publication Number | Publication Date |
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| CN211426856U true CN211426856U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921774517.0U Active CN211426856U (en) | 2019-10-22 | 2019-10-22 | Optical device structure with lens and glue on optical path |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568116A (en) * | 2021-07-26 | 2021-10-29 | 亨通洛克利科技有限公司 | Photoelectric coupling device |
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2019
- 2019-10-22 CN CN201921774517.0U patent/CN211426856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568116A (en) * | 2021-07-26 | 2021-10-29 | 亨通洛克利科技有限公司 | Photoelectric coupling device |
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