Fiber optics, or optical fibers, are long, thin strands of carefully drawn glass about the diameter of a human hair. These strands are arranged in bundles called optical cables. We rely on them to transmit light signals over long distances.
At the transmitting source, the light signals are encoded with data… the same data you see on the screen of a computer. So, the optical fiber transmits “data” by light to a receiving end, where the light signal is decoded as data. Therefore, fiber optics is actually a transmission medium – a “pipe” to carry signals over long distances at very high speeds.
How they work:
Light travels down a fiber optic cable by bouncing off the walls of the cable repeatedly. Each light particle (photon) bounces down the pipe with continued internal mirror-like reflection.
The light beam travels down the core of the cable. The core is the middle of the cable and the glass structure. The cladding is another layer of glass wrapped around the core. Cladding is there to keep the light signals inside the core.
Final Destination for Kerala PSC Notes and Tests, Exclusive coverage of KPSC Prelims and Mains Syllabus, Dedicated Staff and guidence for KPSC Kerala PSC Notes brings Prelims and Mains programs for Kerala PSC Prelims and Kerala PSC Mains Exam preparation. Various Programs initiated by Kerala PSC Notes are as follows:-
- Kerala PSC Mains Tests and Notes Program
- Kerala PSC Prelims Exam 2024- Test Series and Notes Program
- Kerala PSC Prelims and Mains Tests Series and Notes Program
- Kerala PSC Detailed Complete Prelims Notes