Open AccessOptical devices for ultra-compact photonic integrated circuits based on III-V/polymer nanowires
Author(s) -
D. Lauvernier,
S. Garidel,
M. Zégaoui,
Jean-Pierre Vilcot,
Joseph El Harari,
V. Magnin,
D. Decoster
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.005333
Subject(s) - nanowire , materials science , photonic integrated circuit , radius , optics , photonics , electronic circuit , optoelectronics , coupling (piping) , bend radius , coupling loss , optical fiber , physics , computer security , quantum mechanics , computer science , metallurgy , composite material , bending
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.