Optical cable is manufactured to meet optical, mechanical or environmental performance specifications. It is a communication cable assembly that uses one or more optical fibers placed in a sheath as a transmission medium and can be used alone or in groups. Optical cable is mainly composed of optical fiber (glass filaments as thin as hair) and plastic protective sleeve and plastic outer skin, with a sheath outside, and some are also covered with an outer sheath, which is used to realize a communication line for optical signal transmission.
Total Internal Reflection of Light
Light propagates along optical fiber cables by repeatedly reflecting from the inner wall. The core and cladding bend the incident light at a certain angle and have their own refractive index. When optical signals are sent through optical fiber cables, they will reflect from the core and cladding in a series of rebounds. This process is called total internal reflection.
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Applications and Extensions
Optical Composite Cable: Combines optical fiber and cable to transmit optical signals and electricity at the same time. It is widely used in communication base stations and smart grid optical composite cables.
Future Technology: Wavelength Division Multiplexing technology increases the capacity of a single optical fiber through multi-wavelength optical signals, with a rate of up to tens of terabits per second. Wavelength Division Multiplexing technology.
Through the above mechanism, optical cables have become the backbone technology of modern communications, supporting the high-speed data transmission needs in areas such as the Internet, cloud computing and the Internet of Things.