CN212623193U - Wavelength division multiplexer for 5G optical network - Google Patents
Wavelength division multiplexer for 5G optical network Download PDFInfo
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- CN212623193U CN212623193U CN202021642260.6U CN202021642260U CN212623193U CN 212623193 U CN212623193 U CN 212623193U CN 202021642260 U CN202021642260 U CN 202021642260U CN 212623193 U CN212623193 U CN 212623193U
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Abstract
The utility model provides a wavelength division multiplexer for 5G optical network, it is including arranging five parts of the twin-core contact pin, first self-focusing lens, dielectric film light filter, second self-focusing lens and the single core contact pin of connecting along the axial in proper order and arrange in proper order and constitute. The joint between two adjacent parts is filled with optical matching glue. In the wavelength division multiplexer in the prior art, because the wavelength division multiplexer is divided into two assemblies, namely a reflection assembly and a transmission assembly, and a glass tube is used for realizing the connection and fixation of the two assemblies, at least 8 parts are needed, and the wavelength division multiplexer only needs 5 parts, so that compared with the prior art, the material cost is greatly reduced. And the utility model discloses use the light to match and glue all parts of connection, the non-wavelength division multiplexing membrane face on the light passing side of all parts does not all need to plate the antireflection coating, has further reduced material cost.
Description
Technical Field
The utility model relates to an optical fiber communication equipment field, concretely relates to wavelength division multiplexer for 5G optical network.
Background
The passive wavelength division multiplexing technology for the 5G optical carrier network is mainly used for connecting a base station and a machine room so as to expand the transmission capacity of optical fibers and improve the transmission rate. There are many methods for expanding optical fiber communication capacity, and wavelength division multiplexing has the advantages of easy realization and low cost, and is the most effective method for expanding optical fiber communication capacity at present. The 5G optical bearing network is used as a key field of new infrastructure, and is extremely sensitive to cost due to huge investment.
As the most basic unit in the wavelength division multiplexing equipment, the existing three-port wavelength division multiplexer is difficult to meet the requirement of the future 5G optical network on the continuous reduction of the device cost due to the fact that the structure and the process are complex.
For example, the utility model with the application number CN201621310211 discloses an optical wavelength division multiplexer, the diameters of its components are all larger than or equal to 1.8mm, while the diameters of the glass tubes and even the steel tubes outside the components of the existing wavelength division multiplexer are overlapped together and are larger, and the general range is 3.4 mm-5.5 mm. Obviously, the requirements of 5G and the existing optical network on the integration level of the device are not met.
Utility model with application number CN 201820939246 discloses an optical wavelength division multiplexer, which can basically disassemble three parts: the reflection assembly, the transmission assembly and the large glass tube are used for fixing the reflection assembly and the transmission assembly together to form a complete transflective light path, and the structure and the process are complex.
The process flow in the prior art generally comprises five steps of assembling a reflection assembly, assembling a transmission assembly, adjusting transmission indexes, placing a glass tube, dispensing and curing. The process flow is relatively complex.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a wavelength division multiplexer for a 5G optical network to solve the problems set forth in the background art.
The purpose of the utility model is realized by adopting the following technical scheme:
the utility model provides a wavelength division multiplexer for 5G optical network, it is arranged in proper order by five parts of two core contact pins, first self-focusing lens, dielectric film light filter, second self-focusing lens and single core contact pin and constitutes, and the junction between two adjacent parts is filled with light and is matched and glue.
According to another embodiment, the wavelength division multiplexer for a 5G optical network comprises a dual-core pin, a first self-focusing lens, a dielectric film optical filter, a second self-focusing lens and a single-core pin, which are sequentially arranged along an axial direction, wherein the 5 components are not required to be packaged by a packaging tube, and a light matching adhesive is filled at a joint between every two adjacent components.
Preferably, one end of the two-core pin close to the first self-focusing lens is provided with a first light-passing surface.
A second light-passing surface coupled with the first light-passing surface is arranged at one end, close to the double-core contact pin, of the first self-focusing lens, and a third light-passing surface is arranged at one end, close to the dielectric film optical filter, of the first self-focusing lens;
a fourth light passing surface coupled with the third light passing surface is arranged at one end, close to the first self-focusing lens, of the dielectric film filter, and a fifth light passing surface is arranged at one end, close to the second self-focusing lens, of the dielectric film filter;
a sixth light-passing surface coupled with the fifth light-passing surface is arranged at one end, close to the dielectric film filter, of the second self-focusing lens, and a seventh light-passing surface is arranged at one end, close to the single-core contact pin, of the dielectric film filter;
and an eighth light-passing surface coupled with the seventh light-passing surface is arranged at one end of the single-core contact pin close to the second self-focusing lens.
Preferably, the outer diameter of the two-core pin, the first self-focusing lens, the second self-focusing lens and the single-core pin is one of 1.0mm and 1.8 mm.
Preferably, the refractive index of the optical matching glue is matched with the two-core pin, the first self-focusing lens, the dielectric film filter, the second self-focusing lens and the single-core pin respectively, so that the optical signal is approximately propagated in 5 parts and 1 part.
Preferably, the light matching glue is an ultraviolet glue.
Preferably, the first light passing surface, the second light passing surface, the seventh light passing surface and the eighth light passing surface are all light passing inclined surfaces, and the third light passing surface, the fourth light passing surface, the fifth light passing surface and the sixth light passing surface are all light passing planes.
Preferably, the first light passing surface, the second light passing surface, the third light passing surface, the fourth light passing surface, the fifth light passing surface, the sixth light passing surface and the seventh light passing surface are polished surfaces.
Preferably, the angle of the light-passing slope is one of 8 °, 10 ° and 12 °.
The utility model has the advantages that:
in the wavelength division multiplexer in the prior art, because the wavelength division multiplexer is divided into two assemblies, namely a reflection assembly and a transmission assembly, and a glass tube is used for realizing the connection and fixation of the two assemblies, at least 8 parts are needed, and the wavelength division multiplexer only needs 5 parts, so that compared with the prior art, the material cost is greatly reduced.
And the utility model discloses use the light to match and glue all parts of connection, the non-wavelength division multiplexing membrane face on the light passing side of all parts does not all need to plate the antireflection coating, has further reduced material cost. All 5 parts are connected by using optical matching glue, air does not exist at the connection position of the parts, and optical signals propagate in the 5 parts and propagate in the 1 part approximately, so that the loss of the optical signals is reduced.
The utility model discloses use the light to match and glue the polishing face of connecting all parts, saved parts such as glass pipe, tubular metal resonator, therefore the utility model discloses the size is little, and easily integration, the integrated advantage of multichannel is obvious.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a diagram of an exemplary embodiment of a wavelength division multiplexer for a 5G optical network according to the present invention.
Fig. 2 is a diagram of an exemplary embodiment of a two-core pin of the present invention.
Fig. 3 is a diagram of an exemplary embodiment of a single core pin of the present invention.
Fig. 4 is a diagram of an exemplary embodiment of a manufacturing process of the present invention.
Reference numerals:
the optical fiber comprises a double-core contact pin 1, a first self-focusing lens 2, a dielectric film optical filter 3, a second self-focusing lens 4, a single-core contact pin 5, an optical matching glue 6, a first glass tube 101, a first capillary tube 102, an input optical fiber 103, a reflection output optical fiber 104, a second glass tube 501, a second capillary tube 502 and a transmission output optical fiber 503.
Detailed Description
The invention will be further described with reference to the following examples.
Referring to fig. 1, the utility model provides a wavelength division multiplexer for 5G optical network, it comprises two core contact pins 1, first self-focusing lens 2, dielectric film light filter 3, second self-focusing lens 4 and the five parts of single core contact pin 5 that are connected of axial arrangement in proper order, and the junction between two adjacent parts is filled with light and is matched gluey 6.
A first light-passing surface is arranged at one end of the double-core contact pin 1 close to the first self-focusing lens 2;
referring to fig. 2, the two-core pin 1 includes a first glass tube 101, a first capillary 102, an input optical fiber 103, and a reflection output optical fiber 104; the first glass tube 101 is fitted to the outside of the first capillary 102; the input optical fiber 103 and the reflection output optical fiber 104 pass through the center of the first capillary 102 from one end of the first capillary 102 far away from the first self-focusing lens 2, and are connected with the first light-passing surface at one end of the first capillary 102 close to the first self-focusing lens 2; the input optical fiber 103 and the reflection output optical fiber 104 are connected with one end of the first capillary 102 far away from the first self-focusing lens 2 through fixing glue; the first light passing surface is a light passing inclined surface;
a second light-passing surface coupled with the first light-passing surface is arranged at one end, close to the double-core contact pin 1, of the first self-focusing lens 2, and a third light-passing surface is arranged at one end, close to the dielectric film filter 3, of the first self-focusing lens 2;
a fourth light passing surface coupled with the third light passing surface is arranged at one end, close to the first self-focusing lens 2, of the dielectric film filter 3, and a fifth light passing surface is arranged at one end, close to the second self-focusing lens 4, of the dielectric film filter 3;
a sixth light-passing surface coupled with the fifth light-passing surface is arranged at one end, close to the dielectric film filter 3, of the second self-focusing lens 4, and a seventh light-passing surface is arranged at one end, close to the single-core contact pin 5, of the dielectric film filter 3;
and an eighth light-passing surface coupled with the seventh light-passing surface is arranged at one end of the single-core contact pin 5 close to the second self-focusing lens 4.
The first light passing surface, the second light passing surface, the seventh light passing surface and the eighth light passing surface are all light passing inclined surfaces, and the third light passing surface, the fourth light passing surface, the fifth light passing surface and the sixth light passing surface are all light passing planes.
Referring to fig. 3, the single-core ferrule 5 includes a second glass tube 501, a second capillary tube 502, and a transmission output optical fiber 503; the second glass tube 501 is sleeved outside the second capillary 502, and the transmission output optical fiber 503 is connected with the eighth light passing surface and passes through the second capillary from the center of the second capillary 502.
In one embodiment, the first light-passing surface, the second light-passing surface, the third light-passing surface, the fourth light-passing surface, the fifth light-passing surface, the sixth light-passing surface and the seventh light-passing surface are polished surfaces.
In one embodiment, the angle of the clear slope is one of 8 °, 10 ° and 12 °.
In one embodiment, the outer diameters of the two-core pin 1, the first self-focusing lens 2, the second self-focusing lens 4 and the single-core pin 5 are one of 1.0mm and 1.8 mm.
In one embodiment, the refractive index of the optical matching glue 6 filled at the joint between the two-core pin 1 and the first self-focusing lens 2 is matched with that of the two-core pin 1 and the first self-focusing lens 2 respectively;
the refractive index of the light matching glue 6 filled in the joint between the first self-focusing lens 2 and the dielectric film optical filter 3 is respectively matched with that of the first self-focusing lens 2 and the dielectric film optical filter 3;
the refractive index of the light matching glue 6 filled in the joint between the dielectric film optical filter 3 and the second self-focusing lens 4 is respectively matched with that of the dielectric film optical filter 3 and the second self-focusing lens 4;
the refractive index of the optical matching glue 6 filled in the connection part between the second self-focusing lens 4 and the single-core contact pin 5 is respectively matched with that of the second self-focusing lens 4 and the single-core contact pin 5;
the refractive index of the optical matching glue 6 is matched with that of the 5 components, so that the optical signal is approximately propagated in the 5 components and in the 1 component, and the loss of the optical signal is favorably reduced.
In one embodiment, the light matching glue 6 is a uv glue.
In another embodiment:
the utility model provides a wavelength division multiplexer for 5G optical network, wavelength division multiplexer includes two core contact pins 1, first self-focusing lens 2, dielectric film light filter 3, second self-focusing lens 4 and single core contact pin 5, and wherein, aforementioned 5 parts need not to adopt the encapsulation pipe encapsulation, but the junction between every two adjacent parts is filled with light and is matched gluey 6.
A first light-passing surface is arranged at one end of the double-core contact pin 1 close to the first self-focusing lens 2;
a second light-passing surface coupled with the first light-passing surface is arranged at one end, close to the double-core contact pin 1, of the first self-focusing lens 2, and a third light-passing surface is arranged at one end, close to the dielectric film filter 3, of the first self-focusing lens 2;
a fourth light passing surface coupled with the third light passing surface is arranged at one end, close to the first self-focusing lens 2, of the dielectric film filter 3, and a fifth light passing surface is arranged at one end, close to the second self-focusing lens 4, of the dielectric film filter 3;
a sixth light-passing surface coupled with the fifth light-passing surface is arranged at one end, close to the dielectric film filter 3, of the second self-focusing lens 4, and a seventh light-passing surface is arranged at one end, close to the single-core contact pin 5, of the dielectric film filter 3;
and an eighth light-passing surface coupled with the seventh light-passing surface is arranged at one end of the single-core contact pin 5 close to the second self-focusing lens 4.
The first light passing surface, the second light passing surface, the seventh light passing surface and the eighth light passing surface are all light passing inclined surfaces, and the third light passing surface, the fourth light passing surface, the fifth light passing surface and the sixth light passing surface are all light passing planes;
the first light passing surface, the second light passing surface, the third light passing surface, the fourth light passing surface, the fifth light passing surface, the sixth light passing surface and the seventh light passing surface are polished surfaces.
Referring to fig. 3, the single-core ferrule 5 includes a second glass tube 501, a second capillary tube 502, and a transmission output optical fiber 503; the second glass tube 501 is sleeved outside the second capillary 502, and the transmission output optical fiber 503 is connected with the eighth light passing surface and passes through the second capillary from the center of the second capillary 502.
In one embodiment, the first light-passing surface, the second light-passing surface, the third light-passing surface, the fourth light-passing surface, the fifth light-passing surface, the sixth light-passing surface and the seventh light-passing surface are polished surfaces.
In one embodiment, the angle of the clear slope is one of 8 °, 10 ° and 12 °.
In one embodiment, the outer diameters of the two-core pin 1, the first self-focusing lens 2, the second self-focusing lens 4 and the single-core pin 5 are one of 1.0mm and 1.8 mm.
In one embodiment, the refractive index of the optical matching glue 6 filled at the joint between the two-core pin 1 and the first self-focusing lens 2 is matched with that of the two-core pin 1 and the first self-focusing lens 2 respectively; the refractive index of the light matching glue 6 filled in the joint between the first self-focusing lens 2 and the dielectric film optical filter 3 is respectively matched with that of the first self-focusing lens 2 and the dielectric film optical filter 3; the refractive index of the light matching glue 6 filled in the joint between the dielectric film optical filter 3 and the second self-focusing lens 4 is respectively matched with that of the dielectric film optical filter 3 and the second self-focusing lens 4; the refractive index of the optical matching glue 6 filled in the connection part between the second self-focusing lens 4 and the single-core contact pin 5 is respectively matched with that of the second self-focusing lens 4 and the single-core contact pin 5; the refractive index of the optical matching glue 6 is matched with that of the 5 components, so that the optical signal is approximately propagated in the 5 components and in the 1 component, and the loss of the optical signal is favorably reduced.
In one embodiment, the light matching glue 6 is a uv glue. In one embodiment, the refractive index of the optical fiber of the self-focusing lens and the dielectric film filter are also matched.
As shown in fig. 4, the manufacturing process of the present invention includes three steps: the assembly of the reflection and transmission components is firstly carried out, then the adjustment of the reflection and transmission indexes is carried out, and finally the glue dispensing is used for curing.
The utility model has the advantages that:
in the wavelength division multiplexer in the prior art, because the wavelength division multiplexer is divided into two assemblies, namely a reflection assembly and a transmission assembly, and a glass tube is used for realizing the connection and fixation of the two assemblies, at least 8 parts are needed, and the wavelength division multiplexer only needs 5 parts, so that compared with the prior art, the material cost is greatly reduced.
And the utility model discloses use light to match and glue 6 and connect all parts, all clear planes all need not to plate the antireflection coating, have further reduced material cost.
On the manufacturing process, compare in the reflection component equipment that prior art adopted, transmission component equipment, transmission index adjust, place glass pipe, some glue these five preparation steps of solidification, the utility model discloses because simple structure, so the preparation step only needs threely, and manufacturing process is more simple, is favorable to reducing assembly cost and manufacturing in batches.
The utility model discloses use light to match and glue 6 and connect all parts, left out parts such as glass pipe, tubular metal resonator, therefore the utility model discloses the size is little, and easily integration, the integrated advantage of multichannel is obvious.
The working process of the utility model is as follows:
a multi-channel optical signal enters from an input optical fiber 103, is collimated by a first self-focusing lens 2, a part of the optical signal is transmitted by a dielectric film optical filter 3 and then is output by a transmission output optical fiber 503 through a second self-focusing lens 4 and a single-core contact pin 5, and the rest part of the optical signal is reflected back on the end face of the optical filter 3 and is output by a reflection output optical fiber 104 after passing through the first self-focusing lens 2 and a double-core contact pin 1.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A wavelength division multiplexer for a 5G optical network is characterized by being formed by sequentially arranging five components, namely a double-core contact pin, a first self-focusing lens, a dielectric film optical filter, a second self-focusing lens and a single-core contact pin, wherein optical matching glue is filled at the joint between every two adjacent components.
2. The wavelength division multiplexer according to claim 1, wherein a first light passing surface is disposed at an end of the dual-core pin adjacent to the first self-focusing lens;
a second light-passing surface coupled with the first light-passing surface is arranged at one end, close to the double-core contact pin, of the first self-focusing lens, and a third light-passing surface is arranged at one end, close to the dielectric film optical filter, of the first self-focusing lens;
a fourth light passing surface coupled with the third light passing surface is arranged at one end, close to the first self-focusing lens, of the dielectric film filter, and a fifth light passing surface is arranged at one end, close to the second self-focusing lens, of the dielectric film filter;
a sixth light-passing surface coupled with the fifth light-passing surface is arranged at one end, close to the dielectric film filter, of the second self-focusing lens, and a seventh light-passing surface is arranged at one end, close to the single-core contact pin, of the dielectric film filter;
and an eighth light-passing surface coupled with the seventh light-passing surface is arranged at one end of the single-core contact pin close to the second self-focusing lens.
3. The wavelength division multiplexer according to claim 1, wherein the outer diameters of the dual core pin, the first self focusing lens, the second self focusing lens, and the single core pin are one of 1.0mm and 1.8 mm.
4. A wavelength division multiplexer for a 5G optical network according to claim 1, wherein the optical matching glue is an ultraviolet glue.
5. The wavelength division multiplexer according to claim 2, wherein the first, second, seventh and eighth light-passing surfaces are light-passing inclined surfaces, and the third, fourth, fifth and sixth light-passing surfaces are light-passing planes.
6. The wavelength division multiplexer according to claim 2, wherein the first, second, third, fourth, fifth, sixth, and seventh light passing surfaces are polished surfaces.
7. A wavelength division multiplexer for a 5G optical network according to claim 5, wherein the angle of the clear ramp is one of 8 °, 10 ° and 12 °.
8. The wavelength division multiplexer for the 5G optical network is characterized by comprising a double-core contact pin, a first self-focusing lens, a dielectric film optical filter, a second self-focusing lens and a single-core contact pin which are sequentially arranged along the axial direction, wherein the 5 parts are not required to be packaged by a packaging tube, and optical matching glue is filled at the joint between every two adjacent parts.
9. The wavelength division multiplexer according to claim 8, wherein a first light passing surface is disposed at an end of the dual-core pin adjacent to the first self-focusing lens;
a second light-passing surface coupled with the first light-passing surface is arranged at one end, close to the double-core contact pin, of the first self-focusing lens, and a third light-passing surface is arranged at one end, close to the dielectric film optical filter, of the first self-focusing lens;
a fourth light passing surface coupled with the third light passing surface is arranged at one end, close to the first self-focusing lens, of the dielectric film filter, and a fifth light passing surface is arranged at one end, close to the second self-focusing lens, of the dielectric film filter;
a sixth light-passing surface coupled with the fifth light-passing surface is arranged at one end, close to the dielectric film filter, of the second self-focusing lens, and a seventh light-passing surface is arranged at one end, close to the single-core contact pin, of the dielectric film filter;
and an eighth light-passing surface coupled with the seventh light-passing surface is arranged at one end of the single-core contact pin close to the second self-focusing lens.
10. The wavelength division multiplexer according to claim 9, wherein the first, second, seventh and eighth light-passing surfaces are light-passing inclined surfaces, and the third, fourth, fifth and sixth light-passing surfaces are light-passing planes;
the first light passing surface, the second light passing surface, the third light passing surface, the fourth light passing surface, the fifth light passing surface, the sixth light passing surface and the seventh light passing surface are polished surfaces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021642260.6U CN212623193U (en) | 2020-08-07 | 2020-08-07 | Wavelength division multiplexer for 5G optical network |
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| CN202021642260.6U CN212623193U (en) | 2020-08-07 | 2020-08-07 | Wavelength division multiplexer for 5G optical network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156584A (en) * | 2021-04-14 | 2021-07-23 | 武汉恩达通科技有限公司 | Single-fiber bidirectional three-port circulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156584A (en) * | 2021-04-14 | 2021-07-23 | 武汉恩达通科技有限公司 | Single-fiber bidirectional three-port circulator |
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