Q. Determine coupling efficiency if the misalignment loss in a graded index fiber is 0.102.

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Q. In a single mode fiber, the losses due to lateral offset and angular misalignment are given by 0.20 dB and 0.46 dB respectively. Find the total insertion loss.

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Q. The intrinsic loss through a multimode fiber joint is independent of direction of propagation.

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Q. A permanent joint formed between two different optical fibers in the field is known as a ____________

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Q. How many types of fiber splices are available?

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Q. The insertion losses of the fiber splices are much less than the Fresnel reflection loss at a butted fiber joint.

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Q. What is the main requirement with the fibers that are intended for splicing?

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Q. In score and break process, which of the following is not used as a cutting tool?

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Q. The heating of the two prepared fiber ends to their fusing point with the application of required axial pressure between the two optical fibers is called as ____________

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Q. Which of the following is not used as a flame heating source in fusion splicing?

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Q. The rounding of the fiber ends with a low energy discharge before pressing the fibers together and fusing with a stronger arc is called as ____________

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Q. _____________ is caused by surface tension effects between the two fiber ends during fusing.

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Q. Average insertion losses as low as _________ have been obtained with multimode graded index and single-mode fibers using ceramic capillaries.

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Q. _____________ are formed by sandwiching the butted fiber ends between a V-groove glass substrate and a flat glass retainer plate.

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Q. Mean splice insertion losses of 0.05 dB are obtained using multimode graded index fibers with the Springroove splice.

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Q. Alignment accuracy of the order ___________ is obtained using the three glass rod alignment sleeve.

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Q. In case of multiple fusion, splice losses using an electric arc fusion device with multimode graded index fiber range from ____________

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Q. Demountable fiber connectors are more difficult to achieve than optical fiber splices.

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Q. What is the use of an index-matching material in the connector between the two jointed fibers?

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Q. How many categories of fiber connectors exist?

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