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1) Which among the following represents the lateral shift of a light beam on reflection at a dielectric interface? a. Doppler's Shift b. Goos-Haenchen's Shift c. Frequency Shift d. Phase Shift
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2) Why are plastic clad silica fiber optic cables not used widely? a. Difficulty in connector application due to excessive plasticity in cladding b. Difficulty in bonding c. Insolubility in organic solvents d. All of the above
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3) In cables, water is prevented from filling the spaces with __________resistant compounds. a. moisture b. pressure c. temperature d. stress
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4) Which reason/s is/are responsible for the occurrence of non-linear Cross Phase Modulation (XPM)? a. Difference in transmission phase of peak pulse & leading or trailing edges of pulse b. Third-order optical non-linearity c. Intensity dependence of refractive index d. All of the above
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5) What is/ are the consequence/s of Self Phase Modulation in non-linear optics? a. Modification in pulse spectrum b. Limited transmission rate c. Dispersion effect d. All of the above
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6) Which type of fiber-optic coupler causes the distribution of an optical power from more than two input ports among the several output ports? a. Star Coupler b. Tree Coupler c. X Coupler d. All of the above
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7) Which optical devices are adopted or applicable for routing signals from one waveguide to another? a. Optical Combiner b. Optical Splitter c. Optical Coupler d. None of the above
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8) Which among the following characteristics of Laser light specifies the precise movement of all individual light waves together through time and space? a. Monochromatic b. Directional c. Coherent d. Brightness
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9) Which modes are acknowledged due to their association with electromagnetic field and beam profile in the direction perpendicular to the plane of pn junction? a. Longitudinal Modes b. Transverse Modes c. Lateral Modes d. All of the above
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10) Which type of injection laser involves the use of geometry for fabrication of the multimode injection laser with a single or small number of lateral modes? a. Gain guided laser b. Index guided laser c. Quantum well laser d. Quantum dot laser
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