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What is optical fiber?
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Author : JIUZHOU
Update time : 2024-09-27 11:00:28
It is short for optical fiber. The core is usually a thin, double-layered cylinder made from quartz glass. Because of its fragile nature, it necessitates an extra protective layer to prevent breakage.
It can be used to transmit light. It is mainly used for signal transmission, and its transmission principle is "total reflection of light".
The structure of fiber optics includes plastic protective sleeve and plastic outer skin. It is the core part of the fiber optics, usually made of pure quartz, very small, and thinner than a hair in diameter.
The transmission principle uses light-emitting diodes (LEDs) or lasers. These devices send light pulses to the fiber optics. Then, photosensitive elements detect the pulses.
There are many types of optical fibers, including single-mode optical fibers and multi-mode optical fibers. Single-mode optical fibers allow one transverse mode to propagate and are mainly used for long-distance communication. Multi-mode optical fibers can allow multiple transverse modes to propagate and are suitable for short-distance communication.
In daily life, fiber optics is used for long-distance information transmission. This is because light loss in fiber is much lower than electricity loss in wires.
Most optical fibers need several layers of protection before they can be used. The protected fibers are called optical cables.
Optical cables are divided into: cable sheath, aramid yarn, buffer layer and fiber optics. It is similar to coaxial cable, but without mesh shielding layer.
In multimode fiber optics, the core diameter is 50μm and 62.5μm. This is roughly equivalent to the thickness of human hair. The diameter of the single-mode fiber optics core is 8μm~10μm, and 9/125μm is commonly used.
The core is surrounded by a glass layer called cladding. On the outside is a thin plastic jacket, i.e. the coating, which is used to protect the cladding.
They are usually bundled and protected by a shell. The core usually has a two-layer cylindrical shape with a small cross-section. Given its fragility and susceptibility to breakage, it necessitates an extra layer of protection.
It can be used to transmit light. It is mainly used for signal transmission, and its transmission principle is "total reflection of light".
The structure of fiber optics includes plastic protective sleeve and plastic outer skin. It is the core part of the fiber optics, usually made of pure quartz, very small, and thinner than a hair in diameter.
The transmission principle uses light-emitting diodes (LEDs) or lasers. These devices send light pulses to the fiber optics. Then, photosensitive elements detect the pulses.
There are many types of optical fibers, including single-mode optical fibers and multi-mode optical fibers. Single-mode optical fibers allow one transverse mode to propagate and are mainly used for long-distance communication. Multi-mode optical fibers can allow multiple transverse modes to propagate and are suitable for short-distance communication.
In daily life, fiber optics is used for long-distance information transmission. This is because light loss in fiber is much lower than electricity loss in wires.
Most optical fibers need several layers of protection before they can be used. The protected fibers are called optical cables.
Optical cables are divided into: cable sheath, aramid yarn, buffer layer and fiber optics. It is similar to coaxial cable, but without mesh shielding layer.
In multimode fiber optics, the core diameter is 50μm and 62.5μm. This is roughly equivalent to the thickness of human hair. The diameter of the single-mode fiber optics core is 8μm~10μm, and 9/125μm is commonly used.
The core is surrounded by a glass layer called cladding. On the outside is a thin plastic jacket, i.e. the coating, which is used to protect the cladding.
They are usually bundled and protected by a shell. The core usually has a two-layer cylindrical shape with a small cross-section. Given its fragility and susceptibility to breakage, it necessitates an extra layer of protection.
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