Q. In the single mode fibers, the dominant dispersion mechanism is ____________

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Q. Devices such as ___________ are used to simulate the steady-state mode distribution.

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Q. How many domains support the measurements of fiber dispersion?

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Q. The time domain dispersion measurement setup involves _____________ as the photo detector.

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Q. In pulse dispersion measurements, the 3dB pulse broadening for the fiber is 10.5 ns/km and the length of the fiber is 1.2 km. Calculate the optical bandwidth for the fiber.

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Q. Frequency domain measurement is the preferred method for acquiring the bandwidth of multimode optical fibers.

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Q. Intra-modal dispersion tends to be dominant in multimode fibers.

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Q. The detailed knowledge of the refractive index profile predicts the __________ of the fiber.

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Q. ______________ of the fiber is strongly dependent on the refractive index profile.

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Q. ______________ is required in case of graded index fibers.

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Q. _______________ have been widely used to determine the refractive index profiles of optical fibers.

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Q. Which of the following is not an interference microscope?

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Q. What stands for x in the given equation?

δn = qλ/x

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Q. The ________ method gives an accurate measurement of the refractive index profile.

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Q. Which of the following is the main drawback of the slab technique?

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Q. ________________ method is used to measure the nonlinear refractive index of the silica fiber.

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Q. Near field scanning method provides a rapid method for acquiring the refractive index profile.

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Q. A multimode fiber has many cutoff wavelengths.

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Q. What does ‘a’ stands for in the given equation?

Mg=(πa/λ)²(n₁² – n₂²)

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Q. The _________ wavelength is defined as the wavelength greater than which the ratio of the total power and the fundamental mode power has to be decreased to less than 0.1 dB.

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