title: Optical devices for ultra-compact photonic integrated circuits based on III-V/polymer nanowires.
abstract: We demonstrated the potential application of III-V/polymer nanowires for photonic integrated circuits in a previous paper. Hereby, we report the use of a spot size converter based on 2D reverse nanotaper structure in order to improve the coupling efficiency between the nanowire and optical fiber. A total coupling enhancement of up to a factor 60 has been measured from an 80 nm x 300 nm cross-section tip which feeds an 300 nm-side square nanowire at its both ends. Simultaneously, micro-radius bends have been fabricated to increase the circuit density; for a radius of 5 microm, the 90 masculine bend losses were measured as low as 0.60 dB and 0.80 dB for TE and TM polarizations respectively.
authors.forename: D
authors.initials: D
authors.lastname: Lauvernier
authors.forename: S
authors.initials: S
authors.lastname: Garidel
authors.forename: M
authors.initials: M
authors.lastname: Zegaoui
authors.forename: J P
authors.initials: JP
authors.lastname: Vilcot
authors.forename: J
authors.initials: J
authors.lastname: Harari
authors.forename: V
authors.initials: V
authors.lastname: Magnin
authors.forename: D
authors.initials: D
authors.lastname: Decoster