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Nonstandard variational method for calculating attenuation in optical fibers
Author(s) -
Oksanen Markku,
Mäki Hannu,
Lindell Ismo V.
Publication year - 1990
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650030508
Subject(s) - attenuation , lossy compression , refractive index , variational method , optical fiber , dielectric , optics , refraction , mathematical analysis , physics , mathematics , computational physics , materials science , optoelectronics , statistics
A new variational functional for lossy open and dielectric waveguides has been derived. Based on the functional, a nonstandard variational method in terms of longitudinal fields has been introduced for calculating attenuation due to material losses. The method has been tested on a round step‐index optical fiber possessing various complex refraction index profiles.