What is a fiber splitter, and is the broadband split by a fiber splitter independent?

Fiber splitters.

Also known as optical splitter) is an optical fiber convergence device that couples, branches, and distributes optical signals in an optical network system. It is the most important passive component in the fiber optic link.

One of them, with multiple inputs and multiple outputs, a splitter has m inputs and n outputs represented by m*n.

The principle of a fiber splitter is equivalent to a switch. It is an indispensable optical facility for FTTX (Fiber to the Home). Among them, the splitter is to root the optical data of the main engine room to the splitter.

1. Introduction to optical fiber splitters.

Optical fiber splitter (also known as optical splitter) is an optical fiber convergence device that couples, branches, and distributes optical signals in an optical network system. It is one of the most important passive devices in the fiber link, with multiple inputs and multiple outputs, and a splitter has m inputs and n outputs represented by m*n. Combining multiple optical signals into one signal is called a synthesizer.

According to the production process, there are planar waveguide type optical fiber splitter (PLC splitter) and fused pull cone splitter (FBTSPLITTER).

2. Main advantages.

1) The taper coupler has more than 20 years of history and experience, and many equipment and processes only need to be used, and the development cost is only a few tenths or even one hundredth of the PLC.

2) The raw materials are only easily available quartz substrates, optical fibers, heat shrink tubing, stainless steel tubing and a little glue, and the total is not more than a dollar. Whereas, the investment depreciation expense of machines and instruments is less, and the cost of low-channel splitters of the 4th rank is low.

3) The splitting ratio can be monitored in real time as needed, and unequal splitters can be made.

An optical splitter is a passive device, also known as an optical splitterThey do not require external energy, as long as there is input light. The beam splitter consists of an incident and exit slit, a mirror, and a dispersive element that separates the required resonance absorption lines. The key component of the splitter is the dispersion element, and now commercial instruments use gratings.

A junction box is the termination of a wiring cable or fiber optic cableIt plays an important role in connecting the distribution cable or optical cable with the user line part and branching the trunk line. The junction box can be installed in narrow spaces such as bridges, boxes, pipes, cable trenches, etc., without occupying the effective use area of the building, easy to install, and does not need to cut off the main cable.

Splitter compositionThe atomic absorption spectrometer does not have high requirements for the resolution of the spectrometer, and the resolution was verified by using and replacing the Ni three-line as the standard. The grating is placed behind the atomizer to prevent all unwanted radiation from inside the atomizer from entering the detector.

My understanding is that the splitter is like the power divider in the indoor distribution system, such as: 1:16, 1 way in, 16 way out.

Fiber splitting box: divide the original 24 fibers (assumed) into 2 cores or the required number of cores where the optical fiber is needed, and continue to lay the remaining optical fibers.

I don't know if I've made it clear.

Fiber opticsOptical splittersThe separated broadband is not independent, but is carefully excavated together with the main broadband.

First of all, let's talk about the common sense of home broadband lines, although each household has its own independent optical fiber. In fact, from the operator's computer room to the user's home, not every household has a line with its own width and core. Fiber broadband for home use, with at least 2 levels of splitting.

In some areas with good lines, there may also be a 3-level splitting.

Fiber splitters.

At present, home broadband has generally realized fiber-to-the-home. Many people will be very curious, the installer comes to the house to tinker for a while, there is a network at home, and it doesn't look complicated, is it me to buy a light cat.

Can you get it yourself when you come back? Let's talk about how fiber broadband gets to your home.

As the name suggests, optical fiber broadband uses optical signals, and the transmission medium is optical cable or optical fiber (its main component is SIO2, commonly known as glass), so optical fiber broadband has the characteristics of fast speed, low cost, high bandwidth, etc.

Depart from the pon port. Today's networks are based on fiber optic output.

Therefore, if you want to monitor the optical network, you can monitor it as long as the main optical fiber of the network needs to be monitored is split with a splitter. However, there are certain drawbacks to simply splitting light with a splitter, such as optical power.

Weakened and single splitting cannot meet the needs of multi-part monitoring or multi-device detection.

1. After reading your question, I feel that Telecom is joking, is the installation staff trying to blackmail you, go to complain to him, or change Unicom.

2. Now Unicom installs, from optical splitters, pigtails, leather cables, optical cats (ont), must be provided by Unicom free of charge, and is responsible for free maintenance within a certain time limit, you only need to pay the network fee.

3. In addition, the splitter is a public resource, and whoever buys it should not be a user to buy it! For example, if you buy a splitter at 1:16 and divide the main signal to the building into 16 parts, you only use one of them, and the 15 copies are free for other users?

4. I feel weird after reading your question, what FC SC represents the model of the splitter pigtail interface, and finally put it bluntly, the splitter is like a telephone pole, which belongs to the fixed assets of the communication company.

According to the different application ranges, optical splitters can be divided into cassette optical splitters, tray optical splitters, rack-mounted optical splitters, wall-mounted optical splitters, etc. Cassette splitters are generally used in optical fiber distribution boxes, etc.; Tray splitters are generally used in computer rooms, ODF optical fiber distribution frames, optical cable transfer boxes, etc.; Rack-mounted splitters are installed in standard racks; The wall-mounted splitter can be mounted on a wall.

According to the different manufacturing processes, the splitter can be divided into two types: melt tapered splitter and plane waveguide (PLC) splitter, among which the plane waveguide splitter (PLC) is widely used in FTT X and PON. The fusion tapered beam splitter is made by fusing two or more optical fibers on the side; Planar waveguide type optical splitter (PLC) is a micro-optical component type product that uses photolithography technology to form an optical waveguide on a dielectric or semiconductor substrate to realize the branch distribution function. The splitting principle of these two types of splitters is similar, and they both achieve different branch sizes by changing the evanescent field coupling (coupling degree, coupling length) between the fibers and changing the fiber fiber radius.

Optical splitter (i.e., optical splitter) is a connecting device at multiple input and output ends, which can realize the coupling, branching and distribution of optical signals in optical network systems, and is the most important component of optical fiber links. M n is commonly used to indicate that a splitter has m inputs and n outputs, and the splitters used in today's networking are generally 4 splitters.

The shunt ratio of commonly used optical splitters is :

64 kinds, 2:n optical splitter or heterogeneous optical splitter can also be selected when needed. When configuring the optical splitter, the maximum utilization rate of each PON port and optical splitter of the device must be considered, and the optimal combination mode and suitable installation location of the optical splitter must be selected according to the user's distribution density and distribution form.

There are two principles for the use of optical splitters: one is to use primary light splitting as much as possible, and the other is that the number of light splitting stages does not exceed two stages. There are three reasons for the use of primary splitting:

First, it can maximize the utilization rate of PON; Second, the fault diagnosis is convenient; Third, the system has high reliability.

The first-stage splitter mode is adopted, and when the optical splitter is in the resident network, the splitter can be installed indoors or outdoors, and the indoor installation location includes the central computer room of the community, the weak current well in the building, the floor wiring box, etc. The upward connection cable of the splitter can come from three ways: the primary optical transfer box, the secondary optical transfer box or the optical fiber splitter box. This method is mainly suitable for the situation that the built community is large in scale and has a high user density, such as high-rise residential buildings.

If the secondary optical splitter mode is adopted, the optical splitter can be installed in the backbone layer or the user wiring optical cable layer, and in the backbone layer, the splitter can be installed in the primary optical transfer box, the secondary optical transfer box or the optical fiber splitter box. This method is suitable for users who are scattered and who create new user optical cable networks.

When splitting the normal link, the splitter will allocate to multiple splitting links according to the corresponding proportion of optical power, so the optical power of the link after splitting will have a certain attenuation, and at the same time, due to the loss and dispersion of optical fibers and connectors, it may also lead to low optical power of the split link, which will lead to the phenomenon of bit error or even failure to receive data received by the back-end equipment.

To solve this situation, it is necessary to add an optical amplifier (OEO) to the link to amplify the optical power of the link after splitting to ensure that the data received by the back-end devices is accurate. A mobile company's 2 3 4G converged core network expansion project supporting optical splitter project mainly realizes the splitting and data collection of key interfaces (GN, GB, IU-PS, S1, S6A, SGS, etc.) of 2 3 4G mobile users' Internet traffic, in order to ensure the accuracy and completeness of data collection, and at the same time ensure that the stability and security of the existing network are not affected. Optical splitters can be placed in optical delivery boxes, optical cable distribution boxes, optical cable terminal boxes, optical splitter boxes, all-in-one machines, etc.

Where the splitter should be placed is specified by the engineering designer, and it is generally necessary to place it in the most reasonable place.

If it is placed too far away from the user end, it will definitely be a waste of materials, you think, one core becomes multiple cores.

It should be as far away from the user as possible, but it is not possible to concentrate too much on the user side, which is extremely unfavorable to maintenance and management.

It is not good to use too much optical splitter, and if the light attenuation is too large, the terminal equipment will not be good.

As a simple example, the most common cell fiber-to-the-home construction is now:

3 mouths at the end of the bureau (resources at the bureau end are in short supply!) can be saved), come out of a 4-core optical cable (there is no 3-core optical cable), to cover a total of 300 users in a community (5 buildings, 2 doors in each building, 10 floors, 3 households on each floor).

The optical cable route is as follows:

**Bureau - > front optical delivery box in the community - > optical splitter box in the door hole of each building (10 boxes are needed) - > users.

The designer designed 3 optical splitters in the optical delivery box in front of the community, two 1:4, one 1:2, 3 cores became 10 cores, 1 core for each building door hole, and one 1:1 in the optical splitter box in each building door hole

32 splitters, 32 cores come out, each core is given to one household, saving 2 cores for standby. OK!

There are many kinds of communication engineering, and there are many kinds of designs, and all that is required is expertise. Where to place the splitter depends on various on-site conditions. The example I just gave you is the most common communication project at this stage, and now there are generally optical splitters in the optical box, which saves resources, is easy to maintain, and is conducive to management.

According to the principle, the optical separator can be divided into two types: FBT fused taper optical separator and PLC plane waveguide optical separator.

There are four types of components in optical splitters. () for ODF frame, fiber optic cable transfer case, () for standard frame, () for indoor fiber optic distribution box or fiber optic cable transfer case. There are four types of components in optical splitters.

() for ODF frame, fiber optic cable transfer case, () for standard frame, () for indoor fiber optic distribution box or fiber optic cable transfer case. Pallet Type, Frame Type, Micro B, Pallet Type, Frame Type, Box C, Pallet Type, Box D, Frame Type, Pallet Type, Box B

Splitter assemblies can be divided into four types. () for ODF racks and fiber optic cable distribution boxes, () for standard racks, () for indoor fiber optic cable distribution boxes or fiber optic cable distribution boxes. Splitter assemblies can be divided into four types.

() for ODF racks and fiber optic cable distribution boxes, () for standard racks, () for indoor fiber optic cable distribution boxes or fiber optic cable distribution boxes. Pallet Type, Frame Type, Micro B, Pallet Type, Frame Type, Box C, Pallet Type, Box D, Frame Type, Pallet Type, Box B

There are four types of splitter assemblies. () Suitable for ODF racks and optical cable transmission boxes, () Suitable for standard racks, () Suitable for indoor optical fiber distribution boxes or optical cable transmission boxes. There are four types of splitter assemblies.

() Suitable for ODF racks and optical cable transmission boxes, () Suitable for standard racks, () Suitable for indoor optical fiber distribution boxes or optical cable transmission boxes. A. Pallet type, rack type, mini type B, Tray type, Bracket type, Box type C, Tray type, Box type, Rack type D, Rack type, Tray type, Box type B

The appearance of optical shunt components can be divided into four types. () for ODF racks, fiber optic cables, A() for standard cells, and () for fiber optic cables or internal backlights of fiber optic cables. The appearance of optical shunt components can be divided into four types.

() for ODF racks, fiber optic cables, A() for standard cells, and () for fiber optic cables or internal backlights of fiber optic cables. a.Work arrangement pallet, chassis, chassis, chassis, chassis, chassis.