Optical fibers for communication use are mostly fabricated from

Related MCQs

• Optical fibers for communication use are mostly fabricated from
• A planar LED is fabricated from GaAs is having a optical power emitted is 0.018% of optical power generated internally which is 0.018% of optical power generated internally which is 0.6 P. Determine external power efficiency.
• The fibers mostly not used nowadays for optical fiber communication system are
• Conventional optical fibers has more transmission losses than photonic crystal fibers. State whether the statement is true or false.
• A planar LED fabricated from GaAs has a refractive index of 2.5. Compute the optical power emitted when transmission factor is 0.68.
• Intermodal dispersion in multimode fibers is minimized with the use of step-index fibers. State whether the given statement is true or false.
• In optical fiber communication, the electrical signal dropping to half its constant value due to modulated portion of optical signal corresponds to _______
• Plastic fibers are less widely used than glass fibers. State whether the statement is true or false.
• Graded index fibers produced by liquid-phase melting technique are less dispersive than step-index fibers. State whether the given statement is true or false.
• Multimode graded index fibers have overall buffer jackets same as multimode step index fibers but have core diameters