Consider the variation of the effective index of the optical modes of a multimode silica fiber...

 

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Consider the variation of the effective index of the optical modes of a multimode silica fiber with the normalised frequency (V number), at an operating wavelength of 1.55 mm, as shown the figure below. Effective index, n. 1.440- 1.440 1.440 1.445 HEH ME Ma Normalised frequency, V WA TM₂ (a) Determine the maximum Radius (Rmax) of the fiber by assuming that it supports only seven (4) propagating modes. (c) Estimate the maximum fiber radius (Rmax) for single mode condition and the propagation constant of the fundamental mode at the above diameter. Consider the variation of the effective index of the optical modes of a multimode silica fiber with the normalised frequency (V number), at an operating wavelength of 1.55 mm, as shown the figure below. Effective index, n. 1.440- 1.440 1.440 1.445 HEH ME Ma Normalised frequency, V WA TM₂ (a) Determine the maximum Radius (Rmax) of the fiber by assuming that it supports only seven (4) propagating modes. (c) Estimate the maximum fiber radius (Rmax) for single mode condition and the propagation constant of the fundamental mode at the above diameter.

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To determine the maximum radius Rmax of the fiber that supports only seven propagating modes we need to consider the V number values corresponding to ... View the full answer