Q. Fiber drawing using preform was useful for the production of graded index fibers.

View solution

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

View solution

Q. The liquid-phase melting technique is used for the production of fibers ___________

View solution

Q. Graded index fibers produced by liquid-phase melting techniques are less dispersive than step-index fibers.

View solution

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

View solution

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

View solution

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

View solution

Q. P₂O₅ is used as a _____________

View solution

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

View solution

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

View solution

Q. Complete the given reaction.

SiCl₄ + 2H₂O → SiO₂ + ______

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Multimode step index fiber has ___________

View solution

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

View solution

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

View solution

Q. Multimode step index fibers have a bandwidth of ___________

View solution

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

View solution