CN220040805U - Variable light attenuation optical divider - Google Patents
Variable light attenuation optical divider Download PDFInfo
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- CN220040805U CN220040805U CN202321433652.5U CN202321433652U CN220040805U CN 220040805 U CN220040805 U CN 220040805U CN 202321433652 U CN202321433652 U CN 202321433652U CN 220040805 U CN220040805 U CN 220040805U
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- 239000000835 fiber Substances 0.000 claims abstract description 31
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- 230000006855 networking Effects 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 6
- 230000002238 attenuated effect Effects 0.000 description 5
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Abstract
The utility model provides a variable light attenuation optical splitter, relates to the technical field of optical equipment, and can solve the problems of high networking cost and long networking time consumption in a conventional networking mode. The variable light attenuation optical splitter includes: the optical fiber cable comprises an inlet port, an optical splitter chip, a tail fiber and at least two optical attenuators; the inlet port is connected with one end of the optical splitter chip through the tail fiber, and the other end of the optical splitter chip is connected with at least two optical attenuators through the tail fiber. The embodiment of the utility model is used in the networking process of the home network.
Description
Technical Field
The utility model relates to the technical field of optical equipment, in particular to a variable light attenuation optical divider.
Background
With the rapid development of the communication industry, the wired network has entered into the giga age, and the networking mode has become the biggest bottleneck that affects the network quality home experience.
In the prior art, the conventional fiber to the room (Fiber to the Room, FTTR) networking mode is: the home optical fiber is connected to the main gateway and connected to the slave gateway through the beam splitter. Through practical tests, the light attenuation (0-1-7.8) = -8.8dB is accessed from the gateway. Because the light is too strong, the optimal light receiving of the slave device is far from being achieved, the use experience and the perception of the broadband network are affected, and the FTTR device can be damaged due to the too strong light under extreme conditions.
However, in the networking manner, in order to achieve the optimal home gigabit optical network performance and avoid the damage of the FTTR device, a-5 dB or-15 dB optical attenuator needs to be added outside the optical splitter, which increases the networking cost and the construction time of the intelligent engineer.
Disclosure of Invention
The utility model provides a variable light attenuation optical splitter, which can solve the problems of high networking cost and long networking time consumption in a conventional networking mode.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, the present utility model provides a variable optical attenuation optical splitter comprising: the optical fiber cable comprises an inlet port, an optical splitter chip, a tail fiber and at least two optical attenuators; the inlet port is connected with one end of the optical splitter chip through the tail fiber, and the other end of the optical splitter chip is connected with the at least two optical attenuators through the tail fiber.
Based on the above technical solution, the variable optical attenuation optical splitter provided by the embodiment of the present utility model includes: the optical fiber attenuator comprises an incoming line port, an optical splitter chip, a tail fiber and at least two optical attenuators, wherein the incoming line port is connected with one end of the optical splitter chip through the tail fiber, and the other end of the optical splitter chip is connected with the at least two optical attenuators through the tail fiber. Because the integrated design is adopted, the optical attenuator with the optical attenuation function is directly integrated on the optical splitter, the time spent by assembling all units is greatly reduced, meanwhile, a plurality of optical signals obtained through the optical splitter chip in the variable optical attenuation optical splitter can be attenuated to different degrees, various optical attenuation value scenes are met, a plurality of optical attenuators are not required to be added outside the optical splitter again to carry out debugging frequently, the networking cost is reduced, and the time for installing and debugging at home is shortened.
In a first possible implementation manner of the first aspect, the inlet port is connected to an external optical cable; and the inlet port transmits the optical signal of the external optical cable to the optical splitter chip through the tail fiber.
In a second possible implementation manner of the first aspect, the optical splitter chip includes one optical input end and at least two optical output ends; and the optical input end of the optical splitter chip is connected with the inlet port through the tail fiber.
In a third possible implementation manner of the first aspect, the pigtail includes a first pigtail and a second pigtail, the at least two optical attenuators include a first optical attenuator and a second optical attenuator, and the at least two optical output ends include a first optical output end and a second optical output end; the first optical output end of the optical splitter chip is connected with the first optical attenuator through the first tail fiber; and a second optical output end of the optical splitter chip is connected with the second optical attenuator through the second tail fiber.
In a fourth possible implementation manner of the first aspect, the attenuation value of the first optical attenuator is-5 dB; the attenuation value of the second optical attenuator is-15 dB.
Drawings
FIG. 1 is one of the architecture diagrams of an FTTR intelligent gigabit networking provided by an embodiment of the present utility model;
FIG. 2 is a second architecture diagram of an FTTR intelligent gigabit networking according to an embodiment of the present utility model;
fig. 3 is an exemplary diagram of a variable optical attenuation optical splitter according to an embodiment of the present utility model.
Reference numerals: 11-an in-line port; 12-an optical splitter chip; 121-an optical input; 122-a first light output; 123-a second light output; 13-pigtail; 131-a first pigtail; 132-a second pigtail; 14-an optical attenuator; 141-a first optical attenuator; 142-a second optical attenuator.
Detailed Description
The communication network system provided by the embodiment of the utility model is described in detail below with reference to the accompanying drawings.
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.
The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or between different processes of the same object and not for describing a particular order of objects.
Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present utility model are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" means two or more.
Currently, operators push out FTTR to lead the giga development, continuously deepen the '480' service commitment, firm to trample people-centered development thought, and put on creating high-quality services, and convert network and product advantages into differentiated service advantages. Network perception and customer service are promoted to upgrade to high quality, diversity and intellectualization.
In the giga age today, networking has become the biggest bottleneck affecting the network quality home experience. In the traditional networking mode of 'optical cat+router', wi-Fi signal coverage area is limited, and the conditions of slow network speed and application of blocking can occur, especially in large flat or multi-layer villa scenes. And the FTTR whole-house intelligent gigabit networking is the only final solution which can realize indoor all-optical gigabit coverage in the current industry.
Illustratively, as shown in fig. 1, all scene devices of FTTR full house intelligent gigabit networking are illustrated. The FTTR master gateway network location is between the optical line terminal (Optical line terminal, OLT) and the slave gateway, up through the home optical network connection OLT, down providing the home optical network connection slave gateway. The FTTR slave gateway is connected with the user equipment and is upwards connected with the FTTR master gateway through the home optical network. And the joints are welded again in a mode of rubber lines and invisible light rays at home for connection.
In the prior art, the conventional FTTR networking mode is as follows: the home optical fiber is connected to the main gateway and connected to the slave gateway through the beam splitter. In practical tests, the loss light is attenuated (0-1-7.8) = -8.8dB from the gateway. Because the light is too strong, the optimal light receiving of the slave device is far from being achieved, the use experience and the perception of the broadband network are affected, and the FTTR device can be damaged due to the too strong light under extreme conditions. In order to avoid the above situation, as shown in fig. 2, it is common practice to add an optical attenuator 03 of-5 dB or-15 dB between the FTTR device 01 and the optical splitter 02 to reduce the light emitting power of the OLT.
However, in the existing FTTR networking mode, the light emitting power from the main gateway to the slave gateway provided by the provider is 0dB/-1dB, while the optimal light receiving of the existing slave gateway device is-15 dB, and the access loss of the 1:4 optical splitter is-7.8 dB. Therefore, in order to realize the optimal home gigabit optical network performance, namely the optimal light receiving, a-5 dB or-15 dB optical attenuator needs to be added outside the optical splitter again to perform frequent adjustment and measurement of the optimal light receiving, so that the networking cost and the construction time of intelligent home engineers are increased.
In order to solve the problems of high networking cost and long networking time consumption in a conventional networking mode in the prior art, the utility model provides a variable optical attenuation optical divider, which comprises: the optical fiber cable comprises an inlet port, an optical splitter chip, a tail fiber and at least two optical attenuators; the inlet port is connected with one end of the optical splitter chip through the tail fiber, and the other end of the optical splitter chip is connected with the at least two optical attenuators through the tail fiber. Because the integrated design is adopted, the optical attenuator with the optical attenuation function is directly integrated on the optical splitter, the time spent by assembling all units is greatly reduced, meanwhile, a plurality of optical signals obtained through the optical splitter chip in the variable optical attenuation optical splitter can be attenuated to different degrees, various optical attenuation value scenes are met, a plurality of optical attenuators are not required to be added outside the optical splitter again to carry out debugging frequently, the networking cost is reduced, and the time for installing and debugging at home is shortened.
Fig. 3 is an exemplary diagram of a variable attenuation optical splitter according to an embodiment of the present utility model; the variable light attenuation optical splitter includes: the optical splitter chip 12 is connected to one end of the optical splitter chip 12 through the pigtail 13, and the other end of the optical splitter chip 12 is connected to the at least two optical attenuators 14 through the pigtail 13.
In the embodiment of the present utility model, the above-mentioned inlet port 11 is used for accessing an optical signal of an external optical cable.
The external fiber optic cable may be, for example, an existing fiber optic cable of various specifications.
Illustratively, the specifications of the above-mentioned external optical cable include a GYTA type optical cable, a GYTS type optical cable, a GYTY53 type optical cable, a GYTZA53 type optical cable, a GYFTA53 type optical cable, and the like.
Illustratively, the above-mentioned inlet port 11 is an optical fiber inlet port of an existing optical splitter.
In the embodiment of the present utility model, the optical splitter chip 12 is configured to split the optical signal of the external optical cable into optical signals of at least two optical fibers.
The optical fiber may be a single-mode optical fiber or a multimode optical fiber, for example.
Illustratively, the optical splitter chip 12 is a built-in chip of an existing optical splitter.
In the embodiment of the present utility model, the pigtail 13 is used for transmitting the optical signal.
The pigtail 13 is used for transmitting an optical signal of the external optical cable or an optical signal of the optical fiber, for example.
The interfaces of the pigtail 13 include, for example, five interfaces of SC/PC, FC/PC, LC/PC, E2000/APC, ST/PC.
In the embodiment of the present utility model, the optical attenuator 14 is configured to attenuate and output the optical signal of the optical fiber.
Illustratively, the optical attenuator 14 may be an existing optical attenuator of various attenuation values.
In the embodiment of the utility model, the variable optical attenuation optical splitter can be obtained by integrating a plurality of optical attenuators on the basis of a planar waveguide optical splitter.
Alternatively, in the embodiment of the present utility model, the above-mentioned inlet port 11 is connected to an external optical cable.
In the embodiment of the present utility model, the input port 11 transmits the optical signal of the external optical cable to the optical splitter chip 12 through the pigtail 13.
In the embodiment of the present utility model, after the input port 11 is connected to the external optical cable, since the input port 11 is connected to the optical splitter chip through the pigtail 13, the optical signal of the external optical cable can be transmitted to the optical splitter chip 12.
Illustratively, there is one and only one pigtail 13 between the inlet port 11 and the optical splitter chip 12.
Alternatively, in the embodiment of the present utility model, the optical splitter chip 12 includes one optical input terminal 121 and at least two optical output terminals.
In the embodiment of the present utility model, the optical input end 121 of the optical splitter chip 12 is connected to the input port 11 through the pigtail 13.
In the embodiment of the present utility model, the optical splitter chip 12 may divide the optical signal of the external optical cable into the optical signals of at least two optical fibers according to a preset ratio, and output the optical signals through the at least two optical output ends.
Illustratively, the predetermined ratio includes any one of the following a and B:
A. the optical signal is split equally.
Illustratively, when the optical signal of the external optical cable enters the optical splitter chip 12 through the optical input end 121 of the optical splitter chip 12, the optical splitter chip 12 may divide the optical signal of the external optical cable into a plurality of parts.
For example. Taking the example of the optical splitter chip 12 as a chip of a 1×4 optical splitter (equal ratio optical splitting). If the bandwidth of the external optical cable is 1000Mbps, the optical signal can obtain 4 optical signals with the bandwidth of 250Mbps after passing through the 1×4 optical splitter chip.
B. The optical signal is split unequally.
Illustratively, when the optical signal of the external optical cable enters the optical splitter chip 12 through the optical input end 121 of the optical splitter chip 12, the optical splitter chip 12 may divide the optical signal of the external optical cable into a plurality of parts according to actual requirements.
For example, the optical splitter chip 12 is a 1×2 optical splitter chip (1 to 3 optical splitters). If the bandwidth of the external optical cable is 1000Mbps, after the optical signal passes through the 1×2 optical splitter chip, an optical signal with a bandwidth of 250Mbps and an optical signal with a bandwidth of 750Mbps can be obtained.
Optionally, in an embodiment of the present utility model, the pigtail 13 includes a first pigtail 131 and a second pigtail 132, the at least two optical attenuators 14 include a first optical attenuator 141 and a second optical attenuator 142, and the at least two optical output ends include a first optical output end 122 and a second optical output end 123.
In the embodiment of the present utility model, the first optical output end 122 of the optical splitter chip 12 is connected to the first optical attenuator 141 through the first pigtail 131.
In the embodiment of the present utility model, the second optical output end 123 of the optical splitter chip 12 is connected to the second optical attenuator 142 through the second pigtail 132.
In the embodiment of the present utility model, after the optical splitter chip 12 finishes splitting light, the first optical output end 122 of the optical splitter chip 12 is connected to the first optical attenuator 141 through the first pigtail 131, and the second optical output end 123 is connected to the second optical attenuator 142 through the second pigtail 132, so that the obtained optical signals of at least two optical fibers can be transmitted to the at least two optical attenuators 14.
Illustratively, there may be a plurality of pigtails 13 between the optical splitter chip 12 and at least two optical attenuators 14.
In the embodiment of the present utility model, one end of each of the plurality of tail fibers 13 is connected to one optical output end of the optical splitter chip 12; the other end of each of the plurality of pigtails 13 is connected to an optical attenuator 14.
Illustratively, one optical attenuator 14 corresponds to one pigtail 13.
Alternatively, in the embodiment of the present utility model, the attenuation values of the at least two optical attenuators 14 are-5 dB and-15 dB, respectively.
In the present embodiment, one optical attenuator 14 corresponds to one preset attenuation value.
It should be noted that the preset attenuation values corresponding to the different optical attenuators 14 are different.
Illustratively, the attenuation value of the first optical attenuator 141 is-5 dB; the attenuation value of the second optical attenuator 142 is-15 dB.
In the embodiment of the present utility model, the attenuation value may also be other attenuation values of the existing optical attenuator.
Illustratively, the attenuation values described above also include-10 dB, -20dB, and the like.
For example. Taking the attenuation values of the at least two optical attenuators 14 as-5 dB, -10dB, -15dB, and-20 dB, respectively as examples. If the power of the optical signal output through the optical splitter chip 12 is-1 dB, the power of the optical signal is attenuated to-6 dB, -11dB, -16dB, -21dB after the optical signal passes through the optical attenuators 14 having attenuation values of-5 dB, -10dB, -15dB, -20dB, respectively.
The utility model provides a variable light attenuation optical divider, which comprises: the optical fiber cable comprises an inlet port, an optical splitter chip, a tail fiber and at least two optical attenuators; the inlet port is connected with one end of the optical splitter chip through the tail fiber, and the other end of the optical splitter chip is connected with the at least two optical attenuators through the tail fiber. Because the integrated design is adopted, the optical attenuator with the optical attenuation function is directly integrated on the optical splitter, the time spent by assembling all units is greatly reduced, meanwhile, a plurality of optical signals obtained through the optical splitter chip in the variable optical attenuation optical splitter can be attenuated to different degrees, various optical attenuation value scenes are met, a plurality of optical attenuators are not required to be added outside the optical splitter again to carry out debugging frequently, the networking cost is reduced, and the time for installing and debugging at home is shortened.
The present utility model is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present utility model should be covered by the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (5)
1. A variable light attenuation optical splitter, the variable light attenuation optical splitter comprising: the optical fiber cable comprises an inlet port, an optical splitter chip, a tail fiber and at least two optical attenuators;
the inlet port is connected with one end of the optical divider chip through the tail fiber;
the other end of the optical splitter chip is connected with the at least two optical attenuators through the tail fiber.
2. The variable optical attenuation optical splitter according to claim 1, wherein,
the inlet port is connected with an external optical cable;
and the inlet port transmits the optical signals of the external optical cable to the optical splitter chip through the tail fiber.
3. The variable optical attenuation optical splitter according to claim 1, wherein,
the optical splitter chip comprises an optical input end and at least two optical output ends;
and the optical input end of the optical splitter chip is connected with the inlet port through the tail fiber.
4. A variable optical attenuation optical splitter according to claim 3, wherein the pigtail comprises a first pigtail and a second pigtail, the at least two optical attenuators comprise a first optical attenuator and a second optical attenuator, and the at least two optical outputs comprise a first optical output and a second optical output;
the first optical output end of the optical splitter chip is connected with the first optical attenuator through the first tail fiber;
and a second optical output end of the optical splitter chip is connected with the second optical attenuator through the second tail fiber.
5. The variable optical attenuation optical splitter according to claim 4, wherein,
the attenuation value of the first optical attenuator is-5 dB;
the attenuation value of the second optical attenuator is-15 dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321433652.5U CN220040805U (en) | 2023-06-06 | 2023-06-06 | Variable light attenuation optical divider |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321433652.5U CN220040805U (en) | 2023-06-06 | 2023-06-06 | Variable light attenuation optical divider |
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| CN220040805U true CN220040805U (en) | 2023-11-17 |
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| CN202321433652.5U Active CN220040805U (en) | 2023-06-06 | 2023-06-06 | Variable light attenuation optical divider |
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