CN211718556U - Novel dove prism and multichannel optical fiber slip ring - Google Patents
Novel dove prism and multichannel optical fiber slip ring Download PDFInfo
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- CN211718556U CN211718556U CN202020478743.0U CN202020478743U CN211718556U CN 211718556 U CN211718556 U CN 211718556U CN 202020478743 U CN202020478743 U CN 202020478743U CN 211718556 U CN211718556 U CN 211718556U
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Abstract
The utility model is suitable for an optical fiber communication equipment technical field especially relates to a novel dove prism, including the dove prism, the novel dove prism still includes first lens and second lens, second lens and dove prism one end fixed connection, and the one end fixed connection of dove prism is kept away from with the second lens to first lens. The embodiment of the utility model provides a pair of novel dove prism, first lens and second lens have formed the three face that is used for through light with the fixed back of dove prism, are used for the light through different wavelengths respectively to the problem of the unable compatible multiple wavelength of dove prism has been solved.
Description
Technical Field
The utility model belongs to the technical field of fiber communication equipment, especially, relate to a novel dove prism, multichannel optic fibre sliding ring.
Background
The dove prism can be used in the multi-channel optical fiber slip ring and combined with the gear to play a role in rotating the optical path, so that transmission of optical signals in the multi-channel optical fiber slip ring is not interrupted due to rotation. In optical fiber communication, the operating wavelength of the optical fiber used by the single-mode multichannel optical fiber slip ring is usually 1310nm and 1550nm, while the wavelength of the optical fiber used by the multimode multichannel optical fiber slip ring is 850nm and 1300 nm. Optical paths of optical signals between single modes or between multiple modes transmitted in the dove prism are not greatly different, so that the single-mode or multi-mode optical fiber slip ring can be compatible with double wavelengths well. When the working wavelength of the optical fiber slip ring is a mixture of single mode and multimode, the optical fiber slip ring is called as a mixed-mode multi-channel optical fiber slip ring, the difference of optical paths of 850nm working wavelength and 1550nm working wavelength in an optical signal is large when the working wavelength passes through the same dove prism, the optical path cannot be matched with a plurality of wavelengths simultaneously, only a middle value between 850nm and 1550nm can be selected in a compromise mode, obviously, compatibility is poor, and accordingly, coupling loss of the optical path is large.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a novel dove prism, it is little to aim at solving the wavelength range of current dove prism transmission light, leads to the big problem of light path coupling loss.
The embodiment of the utility model provides a realize like this, a novel dove prism, including the dove prism, novel dove prism still includes first lens and second lens, second lens and dove prism one end fixed connection, and the one end fixed connection of dove prism is kept away from to first lens and second lens.
Preferably, the second lens and the first lens are both circular, and the first lens and the second lens coincide with the central line of the dove prism.
Preferably, the diameter of the second lens is smaller than the outer diameter of one surface of the dove prism close to the second lens.
Preferably, the diameter of the first lens is smaller than the diameter of the second lens.
Preferably, the multichannel optical fiber slip ring comprises a stator end and a rotor end, and further comprises the novel dove prism, wherein the stator end is rotatably connected with the rotor end, and the novel dove prism is arranged between the stator end and the rotor end and used for transmitting optical signals.
The embodiment of the utility model provides a pair of novel dove prism, first lens and second lens have formed the three face that is used for through light with the fixed back of dove prism, are used for the light through different wavelengths respectively to the problem of the unable compatible multiple wavelength of dove prism has been solved.
Drawings
Fig. 1 is a front view of a dove prism according to an embodiment of the present invention;
fig. 2 is a right side view of a dove prism provided by an embodiment of the invention;
fig. 3 is a front view of a novel dove prism provided by an embodiment of the present invention;
fig. 4 is a right side view of the novel dove prism provided by an embodiment of the invention;
fig. 5 is a front view of an optical path of a novel dove prism provided by an embodiment of the present invention;
fig. 6 is a right side view of the optical path of the novel dove prism according to an embodiment of the present invention.
In the drawings: 1. a dove prism; 2. a first lens; 3. a second lens; 4. a novel dove prism; 5. A first light beam; 6. a second light beam; 7. a third light beam; 8. a centerline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
As shown in fig. 1, for the novel dove prism front view that an embodiment of the utility model provides, including dove prism 1, novel dove prism still includes first lens 2 and second lens 3, second lens 3 and dove prism 1 one end fixed connection, and the one end fixed connection of dove prism 1 is kept away from to first lens 2 and second lens 3.
In an embodiment of the present invention, the utility model discloses a first lens 2 and second lens 3 and dove prism 1, second lens 3 and dove prism 1 one end fixed connection, the one end fixed connection of dove prism 1 is kept away from with second lens 3 to first lens 2. When the lens is used, three light rays with different wavelengths can pass through, the three light rays are respectively incident from different lenses and finally exit through one end, far away from the second lens 3, of the dove prism 1.
In an embodiment of the present invention, the first lens 2, the second lens 3 and the dove prism 1 are bonded together by a glue with a high transmittance, so as to avoid the loss of light when passing through the glue.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the second lens 3 and the first lens 2 are both circular, and the first lens 2 and the second lens 3 coincide with the central line 8 of the dove prism 1.
In an embodiment of the present invention, the first lens 2 and the second lens 3 coincide with the central line 8 of the dove prism 1 to ensure that the light can exit smoothly.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the diameter of the second lens 3 is smaller than the outer diameter of the side of the dove prism 1 close to the second lens 3.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the diameter of the first lens 2 is smaller than the diameter of the second lens 3.
In an embodiment of the present invention, the first lens 2 and the second lens 3 are both inclined cylinders, and the cross sections along the diameters thereof are both parallelograms, and the end surfaces of the first lens 2 and the second lens 3 are both parallel to the end surface adjacent to the dove prism 1; the diameter of the second lens 3 is smaller than the outer diameter of the side, close to the second lens 3, of the dove prism 1, and the diameter of the first lens 2 is smaller than the diameter of the second lens 3. Therefore, a surface is formed between the dove prism 1 and the second lens 3 and between the first lens 2 and the second lens 3, light can be incident from the end surface of the first lens 2, the annular surface between the first lens 2 and the second lens 3 and the surface between the dove prism 1 and the second lens 3 respectively, and is emergent from the end surface of the dove prism 1 far away from the second lens 3, and the purpose of multi-channel light transmission is achieved.
In an embodiment of the present invention, the number of the first lens 2 and the second lens 3 can be a plurality of, and the outer diameter of each lens needs to be gradually increased from far to near from the end face of the dove prism 1, so as to realize multi-channel optical path transmission.
In an embodiment of the present invention, the lens and the dove prism 1 and the lens can be bonded by glue or can be integrally formed by machining.
The utility model provides a pair of novel dove prism, three center pin coincidence of first lens 2, second lens 3 and dove prism 1. The first lens 2 is at the outermost layer, the smallest outer diameter, and the maximum wavelength for light passing through the first lens 2 may be 1550 nm. The second lens 3 is between the first lens 2 and the dove prism 1, has an outer diameter greater than that of the first lens, and is adapted to pass light having an operating wavelength shorter than that of the first lens, which may be 1300nm or 1310 nm. The vertical axis of the dove prism 1 is square, the side length of the dove prism is larger than the outer diameter of the second lens 3, the working wavelength of light passing through the dove prism is the shortest, and the working wavelength of the light can be 850 nm. The novel dove prism 4 can be perfectly compatible with various working wavelengths, so that the coupling efficiency of a plurality of optical signal channels can be optimal simultaneously.
As shown in fig. 4, 5 and 6, as the preferred embodiment of the present invention, including stator end and rotor end, the multichannel optical fiber slip ring further includes the novel dove prism as described above, the stator end is connected with the rotor end rotation, and the novel dove prism is disposed between the stator end and the rotor end for transmitting optical signals.
In an embodiment of the present invention, the first light beam 5, the second light beam 6, and the third light beam 7 respectively pass through the dove prism 1, the first lens 2, and the third lens 3, and finally exit to the opposite side through the dove prism 1.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a novel dove prism, includes dove prism (1), its characterized in that, novel dove prism still includes first lens (2) and second lens (3), second lens (3) and dove prism (1) one end fixed connection, and the one end fixed connection of dove prism (1) is kept away from with second lens (3) in first lens (2).
2. A novel dove prism as claimed in claim 1, characterized in that the second lens (3) and the first lens (2) are both circular and the first lens (2) and the second lens (3) coincide with the centre line (8) of the dove prism (1).
3. A novel dove prism as claimed in claim 2, characterised in that the diameter of the second lens (3) is smaller than the outer diameter of the side of the dove prism (1) adjacent the second lens (3).
4. A novel dove prism as claimed in claim 3, characterised in that the diameter of the first lens (2) is smaller than the diameter of the second lens (3).
5. A multi-channel optical fiber slip ring comprises a stator end and a rotor end, and is characterized by further comprising a novel dove prism as claimed in any one of claims 1 to 4, wherein the stator end is rotatably connected with the rotor end, and the novel dove prism is arranged between the stator end and the rotor end and used for transmitting optical signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478743.0U CN211718556U (en) | 2020-04-03 | 2020-04-03 | Novel dove prism and multichannel optical fiber slip ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478743.0U CN211718556U (en) | 2020-04-03 | 2020-04-03 | Novel dove prism and multichannel optical fiber slip ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211718556U true CN211718556U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020478743.0U Active CN211718556U (en) | 2020-04-03 | 2020-04-03 | Novel dove prism and multichannel optical fiber slip ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211718556U (en) |
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2020
- 2020-04-03 CN CN202020478743.0U patent/CN211718556U/en active Active
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