What is an optical cable？
An optical cable, also known as a fiber optic cable, is a type of cable that uses light to transmit data. Unlike traditional copper cables, which transmit electrical signals, optical cables send data in the form of light pulses through glass or plastic fibers. These cables are commonly used for high-speed data transmission over long distances, making them essential in modern communication networks, internet connections, and even in applications like home entertainment and medical equipment.
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What Does Fiber Optic Cable Look Like?
Fiber optic cables are typically thin, flexible, and have a smooth outer appearance. The outer jacket is usually black, yellow, or orange, depending on the type of fiber (single-mode or multi-mode). When you hold a fiber optic cable, it feels lightweight and can easily bend without breaking. Inside, the core is made of glass or plastic fibers that are extremely small — around 8 to 10 microns in diameter for single-mode fiber and 50 to 100 microns for multi-mode fiber. Surrounding the core is a protective cladding layer, which may appear clear or slightly tinted, and a buffer coating that ensures the cable is more durable and flexible.
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What is Fiber Optic Cable Made Of?
Fiber optic cables are primarily made of glass, specifically ultra-pure silica glass, which forms the core and cladding. The core carries the light signal, while the cladding surrounds the core and reflects the light back into the core to maintain signal integrity. A protective outer layer or buffer, often made of plastic, surrounds the cladding to shield the delicate glass fibers from damage.
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What Is a Fiber Optic Cable?
A fiber optic cable is a type of data transmission cable that uses light to transmit data. Unlike traditional copper cables (like Ethernet or coaxial cables) that rely on electrical signals, fiber optic cables use pulses of light to transfer data at incredibly fast speeds over long distances. This makes them the preferred choice for high-speed internet connections, telecommunications, and data networking.
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