Introduction to Optical cable
H5N1 sparse cylindrical strand fiber made of drinking glass or whatever transparent media is known equally Optical cable. The purpose of Optical Fiber or cable is to direct a visible calorie-free inwards Optical Communication over a long distance. Optical cable transmits information at massive speed over long distance.Working Principle
Optical cable is merely based on Total Internal Reflection. Passing a calorie-free beam from denser to a rare medium such that critical angle is greater than incidence angle reflection volition laissez passer on off in addition to calorie-free volition reverberate dorsum into the same medium. Such storey is called Total Internal Reflection. In optical cable, nosotros accept to proceed keep the full internal reflection till the calorie-free emerges out at the side. As nosotros that nub has a higher refractive index equally compared to the cladding, in addition to thus that interface betwixt them human activeness equally a existent mirror. Rays of calorie-free travels inside the nub is restricted yesteryear the mirror to remain inside it withal if nosotros curvature the fiber around the corner.Reference Book: Data Communications in addition to Networking, Fourth Edition yesteryear Behrouz A. Forouzan
