title: All-fiber mode-group-selective photonic lantern using graded-index multimode fibers.
abstract: We demonstrate the first all-fiber mode-group-selective photonic lantern using multimode graded-index fibers. Mode selectivity for mode groups LP(01), LP(11) and LP(21)+LP(02) is 20-dB, 10-dB and 7-dB respectively. The insertion loss when butt coupled to multimode graded-index fiber is below 0.6-dB. The use of the multimode graded-index fibers in the taper can significantly reduce the adiabaticity requirement.
authors.forename: Bin
authors.initials: B
authors.lastname: Huang
authors.forename: Nicolas K
authors.initials: NK
authors.lastname: Fontaine
authors.forename: Roland
authors.initials: R
authors.lastname: Ryf
authors.forename: Binbin
authors.initials: B
authors.lastname: Guan
authors.forename: Sergio G
authors.initials: SG
authors.lastname: Leon-Saval
authors.forename: R
authors.initials: R
authors.lastname: Shubochkin
authors.forename: Y
authors.initials: Y
authors.lastname: Sun
authors.forename: R
authors.initials: R
authors.lastname: Lingle
authors.forename: Guifang
authors.initials: G
authors.lastname: Li