A remarkable anomaly of a mode field in multistep-index multimode fibers was observed. It is demonstrated by a finite-element modal analysis that the highest field peak locations of guided modes with the anomaly shift toward the core-cladding boundary drastically.
© 2009 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: October 13, 2008
Revised Manuscript: December 31, 2008
Manuscript Accepted: January 2, 2009
Published: February 9, 2009
Masashi Eguchi, "Anomaly of mode field in multistep index profile multimode fiber," Opt. Lett. 34, 446-448 (2009)