Fiber optic patch cable are used to transmit optical signals between two devices or subsystems. They work by using the principle of total internal reflection, which occurs when light travels through a material with different refractive indices.
Inside a fiber optic patch cable, there is a core made of glass or plastic that carries the optical signal, surrounded by a cladding layer that reflects the light back into the core. The cladding and core have different refractive indices so that light entering the core at a particular angle is reflected and remains within the core.
When an optical signal is sent through one end of a optical fiber patch cable, it travels through the core of the cable by continually reflecting against the cladding and core interface until it reaches the other end of the cable where it is received by another device.
Fiber optic patch cable can use different types of connectors on each end, such as SC, LC, or ST connectors, depending on the specific needs of the application. These connectors attach to the optical subsystems such as transceivers, switches, or routers to establish the physical connection.
Overall, fiber optic patch cable provide a reliable and efficient way to transmit optical signals over long distances via total internal reflection.
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