@ARTICLE{Sharma_D.K._Analysis_2019, author={Sharma, D.K. and Tripathi, S.M.}, volume={vol. 27}, number={No 2}, journal={Opto-Electronics Review}, pages={224-231}, howpublished={online}, year={2019}, publisher={Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology}, abstract={The evolution of microstructured optical fibers with hexagonal array (H-MOFs) of air-holes rooted in the background of undoped silica has led to the realization of an ideal host for encouraging and technologically entitled optical properties. We focus to explore the divergence of radiation into free space from the end-facet of solid-core H-MOFs by using the improved theoretical model. Also, we investigated the wavelength dependence of beam divergence angle for principal core mode of H-MOFs under step-index fiber approximation (SIFA). Experimental results have been included for comparison.}, type={Article}, title={Analysis of the beam divergence for one-rod core microstructured optical fibres}, URL={http://journals.pan.pl/Content/115256/PDF/opelre_2019_27_2_224-231.pdf}, keywords={Marcuse formula, Microstructured optical fibres, Beam divergence, Mode-field diameter, Improved field model}, }