title: Spatial beam properties of combined lasers' delivery fibers.
abstract: The superiority of parabolic-index fibers over step-index fibers in delivering high-beam-quality light out of incoherently combined lasers is demonstrated numerically and experimentally. By utilizing the tapered fused bundle-combining approach and connecting it with delivery fiber, we point to an efficient, rugged, all-glass, integrated, and nearly brightness-preserving device that is capable of transmitting high-quality output beams.
authors.affiliation: Applied Physics Department, Soreq NRC, Yavne 81800, Israel. yarivsh@soreq.gov.il
authors.forename: Yariv
authors.initials: Y
authors.lastname: Shamir
authors.forename: Roey
authors.initials: R
authors.lastname: Zuitlin
authors.forename: Yoav
authors.initials: Y
authors.lastname: Sintov
authors.forename: Mark
authors.initials: M
authors.lastname: Shtaif