The minute perturbations and impurities in the fiber drawing process using preform technique can result in very high losses of

Related MCQs

• Fiber drawing using preform was useful for the production of graded index fibers. State whether the given statement is true or false.
• . 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?
• In a GaAs LED, compute the loss relative to internally generated optical power in the fiber when there is small air gap between LED and fiber core. (Fiber coupled = 5.5 * 10-4Pint)
• 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?
• The insertion losses of the fiber splices are much less than the Fresnel reflection loss at a butted fiber joint. State whether the given statement is true or false.
• In case of multiple fusion, splice losses using an electric arc fusion device with multimode graded index fiber range from
• The losses due to hydrogen absorption and reaction with fiber deposits can be temporary. State whether the given statement is true or false.
• A measure of amount of optical fiber emitted from source that can be coupled into a fiber is termed as
• If a particular optical power is coupled from an incoherent LED into a low-NA fiber, the device must exhibit very high radiance . State whether the given statement is true or false.
• How the potential macro bending losses can be reduced in case of multimode fiber?