Open AccessDetailed analysis by Fabry-Perot method of slab photonic crystal line-defect waveguides and cavities in aluminium-free material system
Author(s) -
Sylvain Combrié,
E. Weidner,
Alfredo DeRossi,
S. Bansropun,
S. Cassette,
A. Talneau,
Henri Bénisty
Publication year - 2006
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.14.007353
Subject(s) - materials science , photonic crystal , cladding (metalworking) , optics , fabry–pérot interferometer , slab , aluminium , wavelength , optoelectronics , photonic integrated circuit , composite material , physics , geophysics , geology
A single-line-defect low-loss photonic crystal waveguide based on a perforated GaAs membrane in an aluminium-free material system is demonstrated. The GaInP lattice is matched to GaAs as the cladding/sacrificial layer. Fabry-Perot resonances are analyzed to obtain the group velocity dispersion for a 1-mm long guide. The losses are deduced to be close to 5 dB/cm, taking into account the wavelength dependent reflectivity of the guide extremities. In this framework, side-coupled nanocavities are also investigated. Feasibility of low-loss photonic-crystal-based devices combined with a reliable industrial material systems is thus demonstrated.