title: Planar achromatic multiple beam splitter by adiabatic light transfer.
abstract: We introduce a novel achromatic and robust scheme for n-fold multiple beam splitting based on adiabatic light transfer in a planar geometry of coupled waveguides (WGs). The concept is experimentally verified for a one-to-three beam splitter by using a reconfigurable light-induced WG structure at two operating wavelengths. The demonstrated planar-type achromatic beam splitter opens new opportunities for the realization of ultra-high bandwidth on-chip photonic devices.
authors.affiliation: Université de Lorraine, LMOPS, EA 4423, Metz, France. charles.ciret@supelec.fr
authors.forename: Charles
authors.initials: C
authors.lastname: Ciret
authors.forename: Virginie
authors.initials: V
authors.lastname: Coda
authors.forename: Andon A
authors.initials: AA
authors.lastname: Rangelov
authors.forename: Dragomir N
authors.initials: DN
authors.lastname: Neshev
authors.forename: Germano
authors.initials: G
authors.lastname: Montemezzani