Abstract
The propagation-constant bands responsible for the loss in a microstructured quartz fiber with a cladding in the form of a periodic hexagonal hole structure and with a core in the form of a missing hole are investigated theoretically and experimentally. The theory is based on a new model of the cladding, which is represented as a set of strongly coupled optical waveguides of a triangular cross section. The strong coupling results in splitting of the propagation constants of these optical waveguides into bands. In the experiment, a new technique for scanning these bands is proposed and realized for the case when the fiber has a bend with a variable radius. The theory provides for an adequate description of the results.
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Original Russian Text © S.K. Morshnev, I.L. Vorob’ev, V.A. Isaev, Yu.K. Chamorovskii, 2007, published in Radiotekhnika i Elektronika, 2007, Vol. 52, No. 12 pp. 1505–1517.
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Morshnev, S.K., Vorob’ev, I.L., Isaev, V.A. et al. Scanning of the bands of a microstructured fiber via its bending. J. Commun. Technol. Electron. 52, 1396–1408 (2007). https://doi.org/10.1134/S1064226907120133
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DOI: https://doi.org/10.1134/S1064226907120133