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This article mainly introduces the characteristics of optical fiber, the article is very detailed, has a certain reference value, interested friends must read it!

The characteristics of optical fiber are as follows: (1) very wide transmission bandwidth and large communication capacity; (2) low transmission loss and long relay distance, which is especially suitable for long-distance transmission; (3) strong resistance to lightning and electromagnetic interference; (4) good secrecy. Not easy to be eavesdropped or intercept data; 5, small size, light weight; 6, low bit error rate and high transmission reliability.

Optical fiber is the abbreviation of optical fiber, which is a kind of fiber made of glass or plastic, which can be used as a light conduction tool. The principle of transmission is "total reflection of light".

Optical fiber transmits signals in the form of optical pulses, using glass or plexiglass as the network transmission medium. It consists of a fiber core, a cladding and a protective sleeve. Optical fiber can be divided into single-mode (Single Mode) fiber and multimode (Multiple Mode) fiber.

Single-mode fiber provides only one optical path, and its processing is complex, but it has larger communication capacity and longer transmission distance. Multimode optical fiber uses multiple optical paths to transmit the same signal, and the transmission speed is controlled by the refraction of light.

Optical fiber is generally used for communication network transmission, in the transmission process according to the environment and transmission requirements to choose different types of optical fiber. There are several types of optical fibers used in computer networks:

8.3pm core / 125pm shell, single mode fiber optic cable

62.5um core / 125um shell, multimode optical cable

5OPm core / 125pm shell, multimode optical cable

Loopm core / 140pm shell, multimode optical cable.

The optical cable is mainly composed of optical fiber (glass filament as thin as hair) and plastic protective sleeve and plastic sheath. There is no gold, silver, copper, aluminum and other metals in the optical cable, so there is generally no recycling value. Optical cable is a kind of communication line in which a certain number of optical fibers form the cable core in a certain way, which is covered with a sheath, and some are also covered with an outer protective layer to realize optical signal transmission. That is, a cable formed by optical fiber (optical transmission carrier) through a certain process. The basic structure of optical cable is generally composed of cable core, reinforced steel wire, filler and sheath, as well as waterproof layer, buffer layer, insulated metal wire and other components.

The rapid development of optical fiber and cable is mainly due to the following characteristics:

Transmission bandwidth is very wide and communication capacity is very large.

Low transmission loss and long relay distance, especially suitable for long distance transmission

Strong ability to resist lightning and electromagnetic interference

Good confidentiality, not easy to eavesdrop or intercept data

Small size and light weight

Low bit error rate and high transmission reliability

Prices are falling.

The basic structure of optical cable is generally composed of cable core, reinforced steel wire, filler and sheath, as well as waterproof layer, buffer layer, insulated metal wire and other components. The optical cable consists of three parts: the strengthening core and the cable core, the sheath and the outer protective layer. There are two types of cable core structure: single core type and multi-core type: single core type has full type and tube bundle type; multi-core type has ribbon type and unit type. There are two kinds of outer protective layer: metal sheathed and unsheathed.

The above is all the contents of the article "what are the characteristics of optical fiber". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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