Empirical relations to determine the normalized spot size of a single-mode trapezoidal index fiber and computation of its propagation characteristics

Aswini Kumar Mallick; Somenath N. Sarkar

doi:10.1117/1.OE.53.7.076103

16 July 2014 Empirical relations to determine the normalized spot size of a single-mode trapezoidal index fiber and computation of its propagation characteristics

Aswini Kumar Mallick, Somenath N. Sarkar

Author Affiliations +

Optical Engineering, Vol. 53, Issue 7, 076103 (July 2014). https://doi.org/10.1117/1.OE.53.7.076103

Abstract

Simple and complete empirical relations are presented here to determine a normalized spot size in terms of normalized frequencies over a long range and aspect ratio of a trapezoidal index single-mode fiber considering Gaussian approximation of the fundamental mode following the Marcuse method for the first time. After verification of their validity for arbitrary values of aspect ratio and normalized frequency, we calculate various propagation characteristics viz. dispersion and splice loss by using our formulations. Upon comparison, we observe an excellent match and the validity of our results with exact values and other results available in the literature. These formulas should attract the attention of experimentalists as a simple alternative to the rigorous methods of estimating the propagation characteristics of such fibers.

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Aswini Kumar Mallick and Somenath N. Sarkar "Empirical relations to determine the normalized spot size of a single-mode trapezoidal index fiber and computation of its propagation characteristics," Optical Engineering 53(7), 076103 (16 July 2014). https://doi.org/10.1117/1.OE.53.7.076103

Published: 16 July 2014

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