We analyze the evolution of beam quality when propagating through a parabolic index (PI) fiber. The deterioration in beam quality is expressed in terms of the fiber parameters, and a methodology for minimizing the deterioration is presented. The fiber optimization procedure is evaluated numerically for an application where the PI fiber is used to deliver the signal produced by a tapered fiber-bundle beam combiner. It was demonstrated that delivery with no beam quality deterioration can be achieved with proper fiber design.
© 2012 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: May 29, 2012
Revised Manuscript: July 11, 2012
Manuscript Accepted: July 12, 2012
Published: August 27, 2012
Roey Zuitlin, Yariv Shamir, Yoav Sintov, and Mark Shtaif, "Modeling the evolution of spatial beam parameters in parabolic index fibers," Opt. Lett. 37, 3636-3638 (2012)