Open AccessNegative coupling and coupling phase dispersion in a silicon quadrupole micro-racetrack resonator
Author(s) -
Daniel Bachman,
Alan Tsay,
Vien Van
Publication year - 2015
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.23.020089
Subject(s) - resonator , coupling (piping) , optics , dispersion (optics) , quadrupole , phase (matter) , materials science , extinction ratio , coupling coefficient of resonators , silicon , physics , filter (signal processing) , optoelectronics , atomic physics , wavelength , quantum mechanics , metallurgy , computer science , computer vision
We report the first experimental study of the effects of coupling phase dispersion on the spectral response of a two-dimensionally coupled quadrupole micro-racetrack resonator. Negative coupling in the system is observed to manifest itself in the sharp stop band transition and deep extinction in the pseudo-elliptic filter response of the quadrupole. The results demonstrate the feasibility of realizing advanced silicon microring devices based on the 2D coupling topology with general complex coupling coefficients.