What is the body of optical fibers at room temperature?

Optical fiber (English: optical fiber), referred to as optical fiber, is a fiber made of glass or plastic, using light in these fibers to transmit light in the principle of total reflection. The tiny fiber is encapsulated in a plastic sheath, allowing it to bend without breaking.

Typically, a transmitter at one end of an optical fiber uses a light-emitting diode or a laser beam to transmit light pulses into the fiber, and a receiver at the other end of the fiber uses a photosensitive element to detect the pulses. A cable that contains optical fibers is called a fiber optic cable. Because the transmission loss of information in the optical fiber is much lower than the loss of electricity in the wire, and because the main raw material for production is silicon, the reserves are very large and easy to mine, so it is very cheap, which promotes the optical fiber to be used as a long-distance information transmission medium.

With the further reduction of fiber optics, fiber optics are also being used for medical and recreational purposes.

Optical fibers are solid at room temperature.

He is a composite of some transparent materials. It exists in the form of a solid state, which is convenient for it to be processed and manufactured, and is easily used in practice.

Optical fibers are insulators at room temperature. The principle of optical fiber conduction is that light has different refractive indices in different substances, so that total reflection occurs to transmit information.

The main component of optical fibers is high-purity silica celery.

1. The main component of optical fiber is high-purity silica, and its preparation needs to go through multiple processes, including preparation of rods, pre-stretching and stretch molding.

2. Optical fiber has the advantages of fast transmission speed, high communication quality, small signal loss, large data transmission capacity, small size, light weight, etc., and is widely used in communications, medical treatment, scientific research and other fields.

1. Definition and use of optical fibers.

Optical fibers, also known as optical fibers, are materials that transmit optical signals over long distances. It is a linear structure composed of the core in the center and the cladding layer of the surrounding core, which is widely used in communications, medical treatment, scientific research and other fields because of its small, lightweight and small signal loss.

Second, the main components of optical fibers.

1. The main component of optical fiber is high-purity silica, and its content can reach above. Silica is an inorganic compound, usually a white powder, with the formula SiO2, which is a very stable chemical compound with excellent resistance to heat, acids and bases.

2. In addition, there are a small amount of dopants, such as erbium, erbium, etc., through the selection of dopants and the adjustment of the doping amount, the optical properties of optical fibers can be changed to meet the needs of different fields.

3. Optical fiber manufacturing process.

1. Preparation of rods: First of all, it is necessary to mix high-purity silica powder and dopant evenly and prepare them into small rods.

2. Pre-stretching: Put the prepared small rod into a special sintering furnace for heating, and pre-stretch it into a rod with a smaller diameter.

3. Stretch molding: Then, the pre-stretched rod needs to be stretched continuously until its diameter is only a few microns to form a slender and soft optical fiber.

Fourth, the advantages and disadvantages of optical fibers.

1. Advantages: The advantages of optical fiber transmission speed, high communication quality, small signal loss, large data transmission capacity, small size, light weight, etc., are incomparable to traditional communication media such as traditional copper wire and coaxial cable.

2. Disadvantages: the manufacturing process of optical fiber is complex and the manufacturing cost is high; In addition, since it is a glass material, it is susceptible to damage due to physical impact or bending.

Problem 1: The main components of optical fibers are ( ) a silicon b glass c silicon dioxide l d sand a silicon element is a good semiconductor material, which can make silicon chips and silicon solar electric states, so a is wrong; b The main components of glass are sodium silicate, calcium silicate and silicon dioxide, so B is wrong; c The main component of optical fiber is silicon dioxide, which uses the principle of total reflection of light, so C is correct; d The main component of sand is silica, which also contains a lot of impurities, and the main component of optical fiber is not sand, so D is wrong; Therefore, C

Question 2: What is the main component of optical fiber It should be glass, but the question here is the composition, the component is a substance and not a mixture, and the main component of glass is SiO2

Question 3: The main component of the optical fiber is ( ) A pure silicon B glass C pure SiO2D sand The main component of the optical fiber is SiO2 A, because the composition of pure silicon is silicon, so A is wrong; B. Because the main components of glass are sodium silicate, calcium silicate, SiO2, B is wrong; c. Because the composition of the optical fiber is SiO2, C is correct; d. Because the main component of sand is SiO2, it is wrong to laugh at the sails; Therefore, C

Do optical fibers contain cellulose pros! Hello, I am glad to answer for you<> the main limb tremor of photophilic fibers does not contain cellulose fibers, and the main limb tremors are divided into silica fibers, also known as light guide fibers, optical fibers, which are fibers that close light energy in the fibers and produce light guiding effects. It can transmit signals such as the brightness and darkness of light, the brightness and dimming of light spots, and the change of light spots from one end to the other.

Optical fibers are composite fibers made of two or more transparent materials with different refractive indices through special composite technology. Its basic type is composed of a core material that actually acts as a light guide and a skin that can enclose light energy in the core material. There are various ways to classify optical fibers:

According to the composition of the material, it can be divided into glass, quartz and plastic optical fiber; According to the shape and flexibility, it can be divided into flexible and non-flexible optical fibers; According to the fiber structure, it can be divided into skin core type and self-aggregation type (also known as gradient type); According to the transmissibility, it is divided into light transmission and image transmission optical fibers; According to the wavelength of transmitted light, it can be divided into visible light, infrared, ultraviolet light, laser and other optical fibers. Hope mine can help you <>

Do you have any other questions?

In optical fiber communication, the physical principle of optical fiber transmission of optical signal is to use the total reflection phenomenon of light, to occur this phenomenon, the condition that the trace pin must meet is: light is emitted from the optically dense medium to the optophobic medium, and the angle of incidence is equal to or greater than the critical angle.

To represent the propagation of light, we usually use a straight line with an arrow to represent the path and direction of light. Such a straight line is called light, and light travels in a straight line in a homogeneous medium. The linear propagation nature of light has been widely used in the ancient astronomical calendar of China.

Our ancestors made the Gui watch and the sundial to measure the length and direction of the sun's shadow.

to determine the time, winter solstice, summer solstice; A speculum is attached to an astronomical instrument to observe celestial phenomena and measure the position of stars. In addition, I took advantage of this property of light very early on and invented shadow puppetry. At the beginning of the Han Dynasty, Qi Shaoweng used paper-cut people and objects to perform behind the white screen, and illuminated with light, the images of people and objects were reflected on the white screen, and people outside the screen could see the performance of the images.

Shadow puppetry was very popular in the Song Dynasty, and later spread to the West, causing a sensation. A small hole was made in the wall of the sunrise of a dark hut, and the person stood outside the house facing the small hole, and an upside-down figure appeared on the opposite wall of the house. The light passes through the holes like an arrow, in a straight line.

The head of the person covers the light above, and the shadow is below, and the foot of the person covers the light below, and the shadow is on the top, and the shadow is formed in an inverted shadow. This is the first scientific explanation of the linear propagation of light.