1. The fibers which relax the spectral requirements for optical sources and allow flexible wavelength division multiplying are known as . . . . . . . .
2. Photonic crystal fibers also called as . . . . . . . .
3. An optical fiber behaves as a birefringence medium due to differences in . . . . . . . .
4. Any amount of stress occurring at the core-cladding interface would be reduced by grading the material composition.
5. A single mode fiber has mode field diameter 10.2μm and V = 2.20. What is the core diameter of this fiber?
6. The periodic arrangement of cladding air holes in photonic band gap fibers provides for the formation of a photonic band gap in the . . . . . . . .
7. A polarization maintaining fiber operates at a wavelength 1.2μm and have a modal birefringence of 1.8*10-3. Calculate the period of perturbation.
8. Which of the following is not related to Kerr effects?
9. A multimode step-index fiber has a core refractive index of 1.5 and relative refractive index difference of 1%. The length of the optical link is 6 km. Estimate the RMS pulse broadening due to intermodal dispersion on the link.
10. In waveguide dispersion, refractive index is independent of . . . . . . . .
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