The fibers which relax the spectral requirements for optical sources and allow flexible wavelength division multiplying are known as . . . . . . . .
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Optical Communication
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Photonic crystal fibers also called as . . . . . . . .
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An optical fiber behaves as a birefringence medium due to differences in . . . . . . . .
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Any amount of stress occurring at the core-cladding interface would be reduced by grading the material composition.
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A single mode fiber has mode field diameter 10.2μm and V = 2.20. What is the core diameter of this fiber?
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The periodic arrangement of cladding air holes in photonic band gap fibers provides for the formation of a photonic band gap in the . . . . . . . .
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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.
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Which of the following is not related to Kerr effects?
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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.
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In waveguide dispersion, refractive index is independent of . . . . . . . .
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A single mode fiber has refractive indices n1=1.50, n2 = 2.23, core diameter of 8μm, wavelength = 1.5μm cutoff wavelength = 1.214μm. Find the radius of curvature?
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0.4 dB/km, 1.4μm, 6μm, 550MHz. Find threshold optical power for stimulated Raman scattering.
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A single mode fiber has a zero dispersion wavelength of 1.21μm and a dispersion slope of 0.08 psnm-2km-1. What is the total first order dispersion at wavelength 1.26μm.
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Linear scattering effects are . . . . . . . . in nature.
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For many applications that involve optical fiber transmission, an intensity modulation optical source is not required.
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Which equation is used to calculate MFD?
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. . . . . . . . results from a case of nonlinear dispersion compensation in which the nonlinear dispersion compensation in which the nonlinear chirp caused by self-phase modulation balances, postpones, the temporal broadening induced by group velocity delay.
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When λ is the optical wavelength in vacuum, k is given by What does k stand for in the
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An alternative modification of the dispersion characteristics of single mode fibers involves achievement of low dispersion gap over the low-loss wavelength region between . . . . . . . .
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Digital transmission is more likely to be affected by modal noise.
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