Various methods for simulating microstructure fibers have incorporated symmetry for improved efficiency and discrimination of nearly degenerate modes. A revision of the previously used symmetry-class implementations is proposed, with a more efficient partition of the degenerate classes. Advantages demonstrated using a multipole calculation should apply to finite-element and other simulation methods.
© 2004 Optical Society of America
John M. Fini, "Improved symmetry analysis of many-moded microstructure optical fibers," J. Opt. Soc. Am. B 21, 1431-1436 (2004)