Can fiber broadband see light? Why can t I see the light inside the fiber?

Hehe, I'm a professional, whether the fiber can see the light or not depends on the optical power.

Ordinary optical fibers can be visually measured, but if the optical power is about -20dbm, it should not be visually detectable, but the light on the operator's equipment generally cannot be visually measured, and the optical power is too strong to damage the eyesight.

Whether the optical fiber has light or not, you need to connect it to the optical fiber transceiver to see, if the six lights are all on at the same time, it means that there is a signal.

The fiber broadband is basically invisible to the naked eye, and the beam is too small.

Fiber broadband is definitely much faster than copper wires, most of the current fiber is 100m, but there are also many lines that support 1000m, so when your city opens up 100m fiber use, that experience is completely incomparable with copper wire.

Optical fiber broadband converts the data to be transmitted from electrical signals to optical signals for communication. At both ends of the optical fiber, there are "optical modems" for signal conversion.

Optical fiber is the most ideal one of a variety of transmission media in broadband network, which is characterized by large transmission capacity, transmission capacity, low loss, long relay distance, etc. Optical fiber transmission uses wavelength division multiplexing, that is, the data of multiple users in the cell is fused into high-speed signals using PON technology, and then modulated to different wavelengths of optical signals are transmitted in an optical fiber.

The optical fiber uses very fine optical fibers, and the signal is transmitted using the principle of total reflection, and the light will be reflected back into the optical fiber on the inner wall of the optical fiber, and it will not be transmitted to the outside, so it is invisible.

Optical fiber is an abbreviation for optical fiber, which is a fiber made of glass or plastic that acts as a light conduction tool. The principle of transmission is 'total reflection of light'. Former President of the Chinese University of Hong Kong, Charles Kao and George A

Hockham was the first to propose the idea that optical fiber could be used for communication transmission, for which Charles Kao was awarded the Nobel Prize in Physics in 2009.

Because it's invisible light! In fact, the light inside the multimode optical fiber can be seen, you put the optical fiber port against the wall, but don't be next to each other, you can see the small red dot on the wall!

That's a very faint light, which is equivalent to a 12V weakness, and although there is electricity, you won't feel anything when you touch it!

Look at the white box in your house to see if you have this connector

Mainly from the point of view of the line entering the home, for ordinary users, it is best to distinguish that ADSL is separated from the line together with the line, without passing through the cat, while the fiber to the home line is to be connected to the machine after the fiber optic cat modulation and demodulation.

True fiber access is called FTTXIf X is B, it will go to the building, X is O will go to the office, and if it is H, it will go home. You want to know whether you are using fiber optic Internet access, one is to see if your cat is fiber plug (FTTH), and the other is to see if you are using a network cable (FTTB).

In addition, the minimum standard of the operator is 12M, while the previous ADSL is 1M, 2M, 4M, and the highest is 8M

1 All Hello! 1. First of all, optical fiber cannot be transmitted through the first line, so you must first determine which line of your company is? Is it a network cable? Or at some wall outlet and you haven't found a real fiber network yet?

2. If it is determined that it is the first line, then it is sure that your company's network is definitely not optical fiber, but the first line adsl Internet access, then you need to use a cat to connect!

3. There are two forms of optical fiber network, one is that the optical fiber is directly to your company, then there must be an optical fiber transceiver in your company to convert the optical signal of the optical fiber into an electrical signal; The other is the fiber-to-the-building weak current system room, which is processed by the relevant equipment in the system room, and connected to your company and other people's companies or residents on the floor through the switch with network cables, for everyone to use!

Therefore, you should carefully look for the line in your unit to determine the broadband type to be set!

- -You're too broad. If it is broadband in the community or something, most of it should not be optical fiber, it belongs to shared Internet access, and the peak of Internet access will be very stuck. It can also be barely said to be optical fiber, because it is purchased from the network ** provider (Netcom, Telecom), and then the line used by the following users is separated from the computer room in the community.

If it is handled in China Unicom or Telecom, it should be a fiber optic line, simply put, you go to the (Netcom or Telecom) business hall to handle it, then it is a fish you eat yourself, and you handle it in the community, then it is a big pot of rice, understand?

More than 10 megabytes are basically optical fibers. The landlord can use the 360 Guard's network test speed to test it.

Some are fiber-optic and some are not. Look at what your house is equipped with.

Now there are two main ones: adsl (** wire) = copper cable.

There are two access methods for TFFFH optical fiber (optical broadband): direct access to the user with single-core optical fiber.

Use a Category 5e twisted pair (network cable) to access the user.

Now there are two main ones: adsl (** wire) = copper cable.

There are two access methods for TFFFH optical fiber (optical broadband): direct access to the user with single-core optical fiber.

Use a Category 5e twisted pair (network cable) to access the user.