The unit of measurement of attenuation in optical fibers is

Related MCQs

• __________ can induce a considerable amount of attenuation in optical fibers.
• A single-mode optical fiber has an attenuation of 0.3dB/km when operating at wavelength of 1.1μm. The fiber core diameter is 4μmand bandwidth is 500 MHz. Find threshold optical power for stimulated Brillouin scattering.
• Conventional optical fibers has more transmission losses than photonic crystal fibers. State whether the statement is true or false.
• 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.
• If the input power 100μW is launched into 6 km of fiber, the mean optical power at the fiber output is 2μW. What is the overall signal attenuation through the fiber assuming there are no connectors or splices?
• . When the input and output power in an optical fiber is 120μW & 3μW respectively and the length of the fiber is 8 km. What is the signal attenuation per km for the fiber?
• The differential attenuation of modes reduces intermodal pulse broadening on a multimode optical link. State whether the given statement is true or false.
• Plastic fibers are less widely used than glass fibers. State whether the statement is true or false.
• Intermodal dispersion in multimode fibers is minimized with the use of step-index fibers. State whether the given 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.