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Disturbance along the fiber such as vibrations, discontinuities, connectors, splices, source/detectors coupling result in __________

Disturbance along the fiber such as vibrations, discontinuities, connectors, splices, source/detectors coupling result in __________ Correct Answer Modal noise

Disturbance along the fiber cause fluctuations in specific pattern. These speckle patterns have characteristics time longer than resolution time of detector and is known as modal noise.

Related Questions

Disturbance along the fiber such as vibrations, discontinuities, connectors, splices, source/detectors coupling result in . . . . . . . .
A machine started malfunctioning due to some issues with the coupling. The coupling emplaced in the machine was Oldham. The only coupling available in the workshop is Hooke’s coupling. So Oldham coupling can be replaced by Hooke’s coupling.
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?
Consider the following statements in respect of column splicing: 1) Splices should be provided close to the point of inflection in member 2) Splices should be located near to the point of lateral restraint in a member 3) Machined columns for perfect bearing would need splices to be designed for axial force only Which of the above statements are correct?
Demountable fiber connectors are more difficult to achieve than optical fiber splices.
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: Some buttons are switches Statement II: All buttons are connectors Conclusion I: Some switches are connectors Conclusion II: Some connectors are buttons
If the first two statements are true, the third statement is :
I. Oat cereal has more fiber than corn cereal but less fiber than bran cereal.
II. Corn cereal has more fiber than rice cereal but less fiber than wheat cereal.
III. Of the three kinds of cereal, rice cereal has the least amount of fiber.
With reference to western disturbances, consider the following statements: 1. The Western Disturbance originate over the east Mediterranean sea and travel westtward. 2. The moisture content of the Western Disturbance gets augmented from the Caspian Sea in the north and Persian Gulf in the south. 3. The Western disturbance is regarded as highly beneficial for Rabi crops in North India. Which of the above statement is/are correct?
In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: In how many ways can the word ‘DISTURBANCE’ be arranged such that all the consonants are always together? Quantity B: In how many ways can the word ‘DISTURBANCE’ be arranged such that all the vowels are always together?
A rider is riding his bike along the sides of a square ground. He drives the bike with the speed of 10 km/h along one side, 15 km/h along another side, 18 km/h along the third side, and 20 km/h along the last side and reaches the starting point. What is the average speed of the bike along the sides of the ground?