CN216248408U - Four-fiber bidirectional wavelength division multiplexing device - Google Patents
Four-fiber bidirectional wavelength division multiplexing device Download PDFInfo
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- CN216248408U CN216248408U CN202122773057.3U CN202122773057U CN216248408U CN 216248408 U CN216248408 U CN 216248408U CN 202122773057 U CN202122773057 U CN 202122773057U CN 216248408 U CN216248408 U CN 216248408U
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Abstract
The utility model discloses a four-fiber bidirectional wavelength division multiplexing device, which comprises a four-fiber optical fiber head, a two-fiber collimator, a lens with 0.25 intercept graded index, a filter, a large glass tube and a small glass tube, wherein the filter is fixed on the left side of the lens through glue, one end of the four-fiber optical fiber head is clamped and fixed by the glue through the small glass tube, the other end of the four-fiber optical fiber head is fixed by the glue through the lens glue, the four-fiber optical fiber head comprises two light inlet input ends and two light outlet reflection ends, the small glass tube is clamped and fixed at one end of the large glass tube through the glue, the two-fiber collimator is clamped and fixed at the other end of the large glass tube, the two-fiber collimator comprises two light outlet ends which are in one-to-one correspondence with the two light inlet ends, and the central lines of the four-fiber optical fiber head, the two-fiber collimator, the lens and the filter are on the same horizontal straight line; one set can two-way transmission, simple structure, and small, the equipment installation is simple efficient, and production and use cost are low, can effectively satisfy the user demand.
Description
Technical Field
The utility model belongs to the field of electronic communication, and particularly relates to a four-fiber bidirectional wavelength division multiplexing device with simple structure, small volume and high integration level.
Background
Optical signal transmission used at present in the wavelength division multiplexing device is generally double-fiber unidirectional, some devices need to use two paths of optical signals for transmission, two sets of double-fiber unidirectional optical path components are needed under the condition, the two paths of signal transmission realized by the two sets of components can meet certain use requirements, but also has the defect of larger structure, the two sets of components have more complex structures, the size is large, the assembly and installation are troublesome and low in efficiency, the production and use costs are high, and the normal use requirements can not be effectively met.
The utility model aims to solve the technical problem of providing a set of four-fiber bidirectional wavelength division multiplexing device which can realize bidirectional transmission, has simple structure, small volume, simple assembly and installation, high efficiency and low production and use cost and can effectively meet the use requirement.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that two sets of assemblies in the prior art are more complex in structure, large in size, troublesome in assembly and installation, low in efficiency, high in production and use cost, incapable of effectively meeting normal use requirements and the like, the utility model adopts the following technical scheme:
the utility model provides a four-fiber bidirectional wavelength division multiplexing device which comprises a four-fiber optical fiber head, a two-fiber collimator, a lens with 0.25 intercept gradual-change refractive index, a filter, a large glass tube and a small glass tube, wherein the filter is fixed on the left side of the lens through glue, one end of the four-fiber optical fiber head is clamped and fixed by the glue through the small glass tube, the other end of the four-fiber optical fiber head is fixed by the glue of the lens, the four-fiber optical fiber head comprises two light inlet input ends and two light outlet reflection ends, the small glass tube is clamped and fixed at one end of the large glass tube through the glue, the two-fiber collimator is clamped and fixed at the other end of the large glass tube, the two-fiber collimator comprises two light outlet ends which are in one-to-one correspondence with the two light inlet ends, and the central lines of the four-fiber optical fiber head, the two-fiber collimator, the lens and the filter are on the same horizontal straight line.
The utility model has the beneficial effects that: one set can two-way transmission, simple structure, and small, the equipment installation is simple efficient, and production and use cost are low, can effectively satisfy the user demand.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a four-fiber bidirectional wavelength division multiplexing device includes a four-fiber optical fiber head 1, a two-fiber collimator 2, a lens 3 with 0.25 intercept graded index of refraction, a filter 4, a large glass tube 5 and a small glass tube 6, wherein the filter 4 is fixed on the left side of the lens 3 by glue, one end of the four-fiber optical fiber head 1 is clamped and fixed by glue through the small glass tube 6, and the other end is fixed with the lens 3 by glue, the four-fiber optical fiber head 1 includes two light-in input ends 11 and two light-out reflection ends 12, the small glass tube 6 is clamped and fixed at one end of the large glass tube 5 by glue, the two-fiber collimator 2 is clamped and fixed at the other end of the large glass tube 5, the two-fiber collimator 2 includes two light-out output ends 21 and is in one-to-one correspondence with the two light-in input ends 11, the center lines of the four-fiber optical fiber head 1, the two-fiber collimator 2, the lens 3 and the filter 4 are on the same horizontal straight line, the 1550nm filter is taken as an example to explain, the light source enters the input from two of four fine fiber optic heads light input, just only 1550 nm's light jets out from two light-emitting output ends of two fine collimaters respectively after filtering such as lens, filter, can realize two-way light path simultaneous transmission like this, and one set of subassembly can satisfy the operation requirement, and the light-emitting reflection termination of two routes in addition can other service equipment of wavelength light.
The utility model has the beneficial effects that: one set can two-way transmission, simple structure, and small, the equipment installation is simple efficient, and production and use cost are low, can effectively satisfy the user demand.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (1)
1. A four-fiber bidirectional wavelength division multiplexing device is characterized in that: including four fine fiber head (1), two fine collimators (2), 0.25 intercept graded index's lens (3), filter (4), big glass pipe (5) and little glass pipe (6), filter (4) are fixed in lens (3) left side through glue, four fine fiber head (1) one end is blocked and glue is fixed through little glass pipe (6), the other end is fixed with lens (3) glue, four fine fiber head (1) are including two light input ends (11) and two light-emitting reflection ends (12) of advancing, little glass pipe (6) chucking and glue are fixed in big glass pipe (5) one end, two fine collimators (2) chucking are fixed at big glass pipe (5) other end, two fine collimators (2) are including two light output ends (21) and advance light input end (11) one-to-ones with two, four fine fiber head (1), The center lines of the dual-fiber collimator (2), the lens (3) and the filter (4) are on the same horizontal straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773057.3U CN216248408U (en) | 2021-11-13 | 2021-11-13 | Four-fiber bidirectional wavelength division multiplexing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122773057.3U CN216248408U (en) | 2021-11-13 | 2021-11-13 | Four-fiber bidirectional wavelength division multiplexing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216248408U true CN216248408U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122773057.3U Active CN216248408U (en) | 2021-11-13 | 2021-11-13 | Four-fiber bidirectional wavelength division multiplexing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216248408U (en) |
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2021
- 2021-11-13 CN CN202122773057.3U patent/CN216248408U/en active Active
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