CN220040805U - Variable light attenuation optical divider - Google Patents

Abstract

This application provides a variable light attenuation optical splitter, which relates to the technical field of optical equipment and can solve the problems of high networking cost and long networking time in conventional networking methods. The variable light attenuation optical splitter includes: an incoming line port, an optical splitter chip, a pigtail fiber and at least two optical attenuators; the incoming line port is connected to one end of the optical splitter chip through a pigtail fiber, and the optical splitter The other end of the optical attenuator chip is connected to at least two optical attenuators through pigtails. The embodiment of this application is used in the networking process of a home network.

Description

Variable light attenuation splitter

Technical field

The present application relates to the technical field of optical equipment, and in particular, to a variable light attenuation optical splitter.

Background technique

With the rapid development of the communications industry, wired networks have entered the Gigabit era, and networking methods have become the biggest bottleneck affecting network quality and home experience.

In the existing technology, the conventional fiber-to-the-room (FTTR) networking method is: the incoming optical fiber is connected to the main gateway and connected to the slave gateway through an optical splitter. After actual testing, the access loss from the gateway and light attenuation (0-1-7.8) = -8.8dB. Because the light is too strong, it is far from optimal light collection from the device, affecting the broadband network experience and perception. In extreme cases, too strong light may cause damage to the FTTR device.

However, in order to achieve optimal home Gigabit optical network performance and avoid damage to FTTR equipment, the above-mentioned networking method needs to add a -5dB or -15dB optical attenuator outside the optical splitter, which increases the cost of networking and the construction of smart home engineers. duration.

Utility model content

This application provides a variable optical attenuation optical splitter, which can solve the problems of high networking cost and long networking time in conventional networking methods.

In order to achieve the above purpose, this application adopts the following technical solutions:

In a first aspect, this application provides a variable light attenuation optical splitter, which includes: an incoming line port, an optical splitter chip, a pigtail and at least two optical attenuators; the above-mentioned The incoming port is connected to one end of the optical splitter chip through the pigtail fiber, and the other end of the optical splitter chip is connected to the at least two optical attenuators through the pigtail fiber.

Based on the above technical solutions, embodiments of the present application provide a variable light attenuation optical splitter. The variable light attenuation optical splitter includes: an incoming line port, an optical splitter chip, a pigtail and at least two optical attenuators. , the above-mentioned incoming line port is connected to one end of the above-mentioned optical splitter chip through the above-mentioned pigtail fiber, and the other end of the above-mentioned optical splitter chip is connected to the above-mentioned at least two optical attenuators through the above-mentioned pigtail fiber. Due to the integrated design, the optical attenuator with light attenuation function is directly integrated on the optical splitter, which greatly reduces the time spent on assembling each unit together, and at the same time makes it easier to pass the variable light attenuation optical splitter. The multiple optical signals obtained by the optical splitter chip inside can be attenuated to different degrees, which satisfies various light attenuation value scenarios without the need to add multiple optical attenuators outside the optical splitter for frequent debugging. This reduces networking costs and shortens home installation and commissioning time.

In a first possible implementation manner of the first aspect, the incoming line port is connected to an external optical cable; the incoming line port transmits the optical signal of the external optical cable to the optical splitter chip through the pigtail fiber.

In a second possible implementation manner of the first aspect, the above-mentioned optical splitter chip includes an optical input terminal and at least two optical output terminals; the optical input terminal of the above-mentioned optical splitter chip is connected to the above-mentioned input terminal through the above-mentioned pigtail fiber. line port connection.

In a third possible implementation manner of the first aspect, the above-mentioned pigtail includes a first pigtail and a second pigtail, the above-mentioned at least two optical attenuators include a first optical attenuator and a second optical attenuator, and the above-mentioned at least The two optical output ends include a first optical output end and a second optical output end; the first optical output end of the above-mentioned optical splitter chip is connected to the above-mentioned first optical attenuator through the above-mentioned first pigtail; the above-mentioned optical splitter The second optical output end of the chip is connected to the second optical attenuator through the second pigtail fiber.

In a fourth possible implementation manner of the first aspect, the attenuation value of the first optical attenuator is -5dB; the attenuation value of the second optical attenuator is -15dB.

Description of the drawings

Figure 1 is one of the architectural diagrams of an FTTR intelligent gigabit network provided by an embodiment of the present application;

Figure 2 is the second architecture diagram of an FTTR intelligent gigabit network provided by an embodiment of the present application;

FIG. 3 is an example diagram of a variable light attenuation optical splitter provided by an embodiment of the present application.

Reference signs: 11-incoming port; 12-optical splitter chip; 121-optical input terminal; 122-first optical output terminal; 123-second optical output terminal; 13-pigtail; 131-first tail fiber; 132-second pigtail; 14-optical attenuator; 141-first optical attenuator; 142-second optical attenuator.

Detailed ways

The communication network system provided by the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations.

The terms “first” and “second” in the description of this application and the drawings are used to distinguish different objects, or to distinguish different processes on the same object, rather than to describe a specific order of objects.

Furthermore, references to the terms "including" and "having" and any variations thereof in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also Includes other steps or units that are inherent to such processes, methods, products, or devices.

It should be noted that in the embodiments of this application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "such as" in the embodiments of the present application is not to be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

In the description of this application, unless otherwise stated, the meaning of "plurality" means two or more.

At present, the operator has launched FTTR to lead the development of Gigabit, continues to deepen the "480" service commitment, "unswervingly practices the people-centered development philosophy, strives to create high-quality services", and transforms network and product advantages into differentiated services Advantage. Promote network perception and customer service to be upgraded to high quality, diversification, and intelligence.

In today's Gigabit era, networking methods have become the biggest bottleneck affecting network quality and home experience. In the traditional networking mode of "optical modem + router", the Wi-Fi signal coverage area is limited, and the network speed will be slow and the application will be stuck, especially in the scenario of large flat-floor or multi-story villas. FTTR whole-house intelligent gigabit networking is the only ultimate solution in the industry that can achieve indoor all-optical gigabit coverage.

For example, as shown in Figure 1, all scenario equipment of FTTR whole-house intelligent gigabit networking is displayed. The FTTR main gateway network is located between the optical line terminal (OLT) and the slave gateway. It connects the OLT upward through the home optical network and provides the home optical network connection to the slave gateway downward. The FTTR slave gateway is connected to the user equipment, and upwards is connected to the FTTR main gateway through the home optical network. The user's home uses leather wire + invisible light to re-weld the joints for connection.

In the existing technology, the conventional FTTR networking method is: the home optical fiber is connected to the main gateway, and the slave gateway is connected down through the optical splitter. In the actual test, the access loss from the gateway and the light attenuation (0-1-7.8)=-8.8dB. Because the light is too strong, it is far from optimal light collection from the device, affecting the broadband network experience and perception. In extreme cases, too strong light may cause damage to the FTTR device. In order to avoid the above situation, as shown in Figure 2, the general approach is to add a -5dB or -15dB optical attenuator 03 between the FTTR equipment 01 and the optical splitter 02 to reduce the luminous power of the OLT.

However, in the existing FTTR networking method, the luminous power from the main gateway to the slave gateway provided by the supplier is 0dB/-1dB, while the optimal light reception of the slave gateway equipment currently in use is -15dB, and the 1:4 optical splitter Access loss is -7.8dB. Therefore, in order to achieve optimal home Gigabit optical network performance, that is, to achieve optimal light collection, it is necessary to add a -5dB or -15dB optical attenuator outside the optical splitter and perform frequent debugging for optimal light collection, resulting in an increase in the number of groups. Internet cost and construction time of smart home engineers.

In order to solve the problems of high networking cost and long networking time in conventional networking methods in the prior art, this application provides a variable light attenuation optical splitter. The variable light attenuation optical splitter includes: Incoming line port, optical splitter chip, pigtail and at least two optical attenuators; the above-mentioned incoming line port is connected to one end of the above-mentioned optical splitter chip through the above-mentioned pigtail, and the other end of the above-mentioned optical splitter chip is connected through the above-mentioned optical splitter chip The pigtail is connected to at least two of the above optical attenuators. Due to the integrated design, the optical attenuator with light attenuation function is directly integrated on the optical splitter, which greatly reduces the time spent on assembling each unit together, and at the same time makes it easier to pass the variable light attenuation optical splitter. The multiple optical signals obtained by the optical splitter chip inside can be attenuated to different degrees, which satisfies various light attenuation value scenarios without the need to add multiple optical attenuators outside the optical splitter for frequent debugging. This reduces networking costs and shortens home installation and commissioning time.

As shown in Figure 3, it is an example diagram of a variable light attenuation optical splitter provided by an embodiment of the present application; the variable light attenuation optical splitter includes: an incoming line port 11, an optical splitter chip 12, and a pigtail 13 and at least two optical attenuators 14. The inlet port 11 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 at least one of the optical splitter chips 12 through the pigtail 13. Two optical attenuators 14 are connected.

In the embodiment of the present application, the above-mentioned inlet port 11 is used to access optical signals from external optical cables.

For example, the external optical cable may be an existing optical cable of various specifications.

For example, the specifications of the external optical cable include GYTA optical cable, GYTS optical cable, GYTY53 optical cable, GYTZA53 optical cable, GYFTA53 optical cable, etc.

For example, the above-mentioned inlet port 11 is an optical fiber inlet port of an existing optical splitter.

In the embodiment of the present application, the above-mentioned optical splitter chip 12 is used to split the optical signal of the above-mentioned external optical cable into the optical signals of at least two optical fibers.

For example, the above-mentioned optical fiber may be a single-mode optical fiber or a multi-mode optical fiber.

For example, the above-mentioned optical splitter chip 12 is a built-in chip of an existing optical splitter.

In the embodiment of the present application, the above-mentioned pigtail 13 is used to transmit the above-mentioned optical signal.

For example, the pigtail 13 is used to transmit the optical signal of the external optical cable or the optical signal of the optical fiber.

For example, the interfaces of the pigtail 13 include five interfaces: SC/PC, FC/PC, LC/PC, E2000/APC, and ST/PC.

In the embodiment of the present application, the above-mentioned optical attenuator 14 is used to attenuate and output the optical signal of the above-mentioned optical fiber.

For example, the above-mentioned optical attenuator 14 may be an existing optical attenuator with various different attenuation values.

In the embodiment of the present application, the above-mentioned variable light attenuation optical splitter can be obtained by integrating multiple optical attenuators on the basis of a planar waveguide optical splitter.

Optionally, in this embodiment of the present application, the above-mentioned inlet port 11 is connected to an external optical cable.

In the embodiment of the present application, the inlet 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 application, when the incoming port 11 is connected to the external optical cable, since the incoming 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. Splitter chip 12.

For example, there is only one pigtail 13 between the incoming line port 11 and the optical splitter chip 12 .

Optionally, in this embodiment of the present application, the above-mentioned optical splitter chip 12 includes an optical input terminal 121 and at least two optical output terminals.

In this embodiment of the present application, the optical input end 121 of the optical splitter chip 12 is connected to the incoming line port 11 through the pigtail 13 .

In this embodiment of the present application, the above-mentioned optical splitter chip 12 can divide the optical signal of the above-mentioned external optical cable into the optical signals of at least two optical fibers according to a preset ratio, and output them through the above-mentioned at least two optical output terminals.

For example, the above-mentioned preset ratio includes any one of the following A and B:

A. Optical signals are split in equal proportions.

For example, 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 can divide the optical signal of the external optical cable into multiple parts. .

for example. Take the above-mentioned optical splitter chip 12 as an example of a 1×4 optical splitter chip (equally split light). If the bandwidth of the above-mentioned external optical cable is 1000Mbps, then after the optical signal passes through the above-mentioned 1×4 optical splitter chip, four optical signals with a bandwidth of 250Mbps can be obtained.

B. Optical signals are divided into unequal ratios.

For example, when the optical signal of the external optical cable enters the optical splitter chip 12 through the optical input end 121 of the above-mentioned optical splitter chip 12, the optical splitter chip 12 can convert the optical signal of the external optical cable according to actual needs. Divide into multiple portions.

For example, take the above-mentioned optical splitter chip 12 as a 1×2 optical splitter chip (1:3 light splitting). If the bandwidth of the above-mentioned external optical cable is 1000Mbps, then after the optical signal passes through the above-mentioned 1×2 optical splitter chip, one optical signal with a bandwidth of 250Mbps and the other with a bandwidth of 750Mbps can be obtained.

Optionally, in this embodiment of the present application, the above-mentioned pigtail 13 includes a first pigtail 131 and a second pigtail 132 , and the above-mentioned at least two optical attenuators 14 include a first optical attenuator 141 and a second optical attenuator 142 , the above-mentioned at least two light output terminals include a first light output terminal 122 and a second light output terminal 123 .

In this embodiment of the present application, 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 this embodiment of the present application, the second optical output end 123 of the optical splitter chip 12 is connected 142 to the second optical attenuator through the second pigtail 132 .

In the embodiment of the present application, after the optical splitter chip 12 completes light splitting, since 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, The second optical output end 123 is connected to the second optical attenuator 142 through the second pigtail 132, so the obtained optical signals of at least two optical fibers can be transmitted to the at least two optical attenuators 14.

For example, there may be multiple pigtails 13 between the above-mentioned optical splitter chip 12 and at least two optical attenuators 14 .

In the embodiment of the present application, one end of each pigtail of the plurality of pigtails 13 is respectively connected to an optical output end of the above-mentioned optical splitter chip 12; the other end of each pigtail in the above-mentioned plurality of pigtails 13 One end is connected to an optical attenuator 14 respectively.

For example, one optical attenuator 14 corresponds to one pigtail 13 .

Optionally, in this embodiment of the present application, the attenuation values of the above-mentioned at least two optical attenuators 14 are -5dB and -15dB respectively.

In the embodiment of the present application, one optical attenuator 14 corresponds to a preset attenuation value.

It should be noted that the preset attenuation values corresponding to the above-mentioned different optical attenuators 14 are different.

For example, the attenuation value of the first optical attenuator 141 is -5dB; the attenuation value of the second optical attenuator 142 is -15dB.

In the embodiment of the present application, the above attenuation value may also be other attenuation values of existing optical attenuators.

For example, the above attenuation values also include -10dB, -20dB, etc.

for example. Taking the attenuation values of the above at least two optical attenuators 14 as -5dB, -10dB, -15dB, and -20dB respectively as an example. If the power of the optical signal output through the optical splitter chip 12 is -1dB, then after the optical signal passes through the optical attenuator 14 with attenuation values of -5dB, -10dB, -15dB, and -20dB respectively, the optical signal will The power attenuation is -6dB, -11dB, -16dB, -21dB respectively.

This application provides a variable light attenuation optical splitter. The variable light attenuation optical splitter includes: an incoming line port, an optical splitter chip, a pigtail and at least two optical attenuators; the above incoming line port One end of the optical splitter chip is connected through the pigtail, and the other end of the optical splitter chip is connected to the at least two optical attenuators through the pigtail. Due to the integrated design, the optical attenuator with light attenuation function is directly integrated on the optical splitter, which greatly reduces the time spent on assembling each unit together, and at the same time makes it easier to pass the variable light attenuation optical splitter. The multiple optical signals obtained by the optical splitter chip inside can be attenuated to different degrees, which satisfies various light attenuation value scenarios without the need to add multiple optical attenuators outside the optical splitter for frequent debugging. This reduces networking costs and shortens home installation and commissioning time.

The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be covered by the protection scope of the present application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (5)

1. A variable light attenuation optical splitter, characterized in that the variable light attenuation optical splitter includes: an incoming line port, an optical splitter chip, a pigtail and at least two optical attenuators; The incoming line port is connected to one end of the optical splitter chip through the pigtail; The other end of the optical splitter chip is connected to the at least two optical attenuators through the pigtail. 2. The variable light attenuation optical splitter according to claim 1, characterized in that, The inlet port is connected to an external optical cable; The inlet port transmits the optical signal of the external optical cable to the optical splitter chip through the pigtail. 3. The variable light attenuation optical splitter according to claim 1, characterized in that, The optical splitter chip includes an optical input terminal and at least two optical output terminals; The optical input end of the optical splitter chip is connected to the incoming line port through the pigtail fiber. 4. The variable optical attenuation optical splitter according to claim 3, wherein the pigtail fiber includes a first pigtail fiber and a second pigtail fiber, and the at least two optical attenuators include a first optical attenuation device. and a second light attenuator, the at least two light output ends include a first light output end and a second light output end; The first optical output end of the optical splitter chip is connected to the first optical attenuator through the first pigtail; The second optical output end of the optical splitter chip is connected to the second optical attenuator through the second pigtail. 5. The variable light attenuation optical splitter according to claim 4, characterized in that, The attenuation value of the first optical attenuator is -5dB; The attenuation value of the second optical attenuator is -15dB.