Q. Which of the following is not a technique for fabrication of glass fibers?

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Q. _____________ technique is method of preparing extremely pure optical glasses.

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Q. Which of the following materials is not used as a starting material in vapor-phase deposition technique?

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Q. P₂O₅ is used as a _____________

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Q. How many types of vapor-phase deposition techniques are present?

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Q. ___________ uses flame hydrolysis stems from work on soot processes which were used to prepare the fiber with losses below 20 dB/km.

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Q. Complete the given reaction.

SiCl₄ + 2H₂O → SiO₂ + ______

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Q. In modified chemical vapor deposition, vapor phase reactant such as _________ pass through a hot zone.

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Q. _________ is the stimulation of oxide formation by means of non-isothermal plasma maintained at low pressure in a microwave cavity surrounding the tube.

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Q. Only graded index fibers are made with the help of vapor-phase deposition techniques.

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Q. Modified Chemical Vapor Deposition (MCVD) process is also called as an inside vapor phase oxidation (IVPD) technique.

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Q. Multimode step index fiber has ___________

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Q. A typically structured glass multimode step index fiber shows as variation of attenuation in range of ___________

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Q. Multimode step index fiber has a large core diameter of range is ___________

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Q. Multimode step index fibers have a bandwidth of ___________

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Q. Multimode graded index fibers are manufactured from materials with ___________

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Q. The performance characteristics of multimode graded index fibers are ___________

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Q. Multimode graded index fibers have overall buffer jackets same as multimode step index fibers but have core diameters ___________

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Q. Multimode graded index fibers with wavelength of 0.85 μm have numerical aperture of 0.29 have core/cladding diameter of ___________

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Q. Multimode graded index fibers use incoherent source only.

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