Also the angle of incident should be greater than the critical angle. This phenomena happens when light rays pass through more optically, dense medium to less optically dense medium. This technology used the concept of light which is known as Total Internal Reflection (TIR). Note: Optical Fibre technology used to transmit data without loss in the Energy of light. Therefore the correct choice is: (B) Total internal reflection. This Phenomena occurs if the angle of incidence is greater than the critical angle.įor this light must be travelling from a most dense medium into a less dense medium. Light (without any loss of light energy) ray within a medium like glass and water from surrounding surfaces. Total Internal reflection is complete reflection. is no refracted ray and the light experiences total internal reflection (TIR). It is a power full Phenomena which is used in optical fibre cable to transmit data from one place to another place. Optical fiber and fiber optic cables are used as a means to transport. We can say Optical Fibre works on the principle of total internal Reflections. Different types of fibre broadband Fibre internet types are as follows: FTTH or FTTP These stand for Fibre-to-the-home and Fiber-to-the-premises. ![]() In regular light reflection, energy in the light gets dissipated in TIR, it does not. ![]() Angles of entry less than the cut-off angle 0max result in light staying in the fiber. The angle of entry 0 for light entering a fiber determines whether the light is guided by the fiber. In optical fibre cable light pulses bounce back and transmit from one place to another with any loss in the energy of light.īasically bounce back of light is the phenomena of Reflection of light in the same medium and happens without any loss. We use TIR in optical fibre and not ordinary reflection because TIR ensures zero loss. Light can be trapped in optical fibers, due to the process of TIR. From one place to another for longer as well as for a shorter distance. It transmits the light without any loss of energy. Hint: Optical Fibre is wave guided die – electric cable which non-conducting in nature used to data transmission using light pulses travelling in it.
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