1. What is a fundamental necessity in the fabrication of fibers for light transmission? Same refractive index for both core and cladding Pump source Material composition of fiber Variation of the refractive index inside the optical fiber 2. The operating Wavelength range required for the fabrication of optical fiber is _______ 800 nm to …
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1. Which of the following statements best explain the concept of material absorption? A loss mechanism related to the material composition and fabrication of fiber A transmission loss for optical fibers Results in attenuation of transmitted light Causes of transfer of optical power 2. The type of absorption loss in an optical fiber are …
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1. Who proposed the idea of transmission of light via dielectric waveguide structure? Christian Huygens Karpon and Bockham Hondros and debye Albert Einstein 2. Who proposed the use of clad waveguide structure? Edward Appleton Schriever Kao and Hockham James Maxwell 3. Which law gives the relationship between refractive index of the dielectric? Law …
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1. Nonlinear effects which are defined by the intensity-dependent refractive index of the fiber are called as ________ a) Scattering effects b) Kerr effects c) Raman effects d) Tomlinson effects 2. The ______ effects in optical fibers are large. Linear Non-Linear Polarization Scattering 3. The nonlinear effects are weak at _______. High Power …
1. Which one of the following optical phenomena gives evidence that light waves are transverse? Rectilinear propagation of light Polarization of light Diffraction of light Interference of light 2. The phenomenon of polarization shows that light has _____ nature. Particle Transverse Longitudinal Dual 3. The phenomenon of polarization CANNOT occur in ________ Radio …
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1. What is dispersion in optical fiber communication? Compression of light pulses Broadening of transmitted light pulses along the channel Overlapping of light pulses on compression Absorption of light pulses 2. ________ is the spreading of light pulse as its travels down the length of an optical fiber. Transmission Dispersion Diffusion Radiation 3. …
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1. What is dispersion in optical fiber communication? Compression of light pulses Broadening of transmitted light pulses along the channel Overlapping of light pulses on compression Absorption of light pulses 2. ________ is the spreading of the light pulse as its travels down the length of an optical fiber. Transmission Dispersion Diffusion Radiation …
1. What is dispersion in optical fiber communication? Compression of light pulses Broadening of transmitted light pulses along the channel Overlapping of light pulses on compression Absorption of light pulses 2. ________ is the spreading of light pulse as its travels down the length of an optical fiber. Transmission Dispersion Diffusion Radiation 3. …
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1. Intermodal dispersion occurring in a large amount in multimode step-index fiber results in ________ Propagation of the fiber Propagating through the fiber Pulse broadening at output Attenuation of waves 2. ______ dispersion occurs in multimode fiber. Intramodal dispersion Intermodal dispersion Both 1 and 2 None of the above 3. After Total Internal Reflection …
1. ______ in glass arise from microscopic variations in the material density, from compositional fluctuations. Bandwidth Losses Scattering Losses Radiation Losses All of the above 2. Rayleigh scattering and Mie scattering are the types of ________ Linear scattering losses Non-linear scattering losses Fiber bends losses Splicing losses 3. Stimulated Raman scattering may have …
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