23 February 2018 Structure-induced asymmetry between counterpropagating modes in three-port couplers
Author Affiliations +
Abstract
The continuing controversy regarding the validity of assuming different photon lifetimes for counterpropagating modes in whistle-geometry ring resonators has led us to re-examine the commonly held view that coupling coefficients between any two ports in Y-junction couplers (regardless of their symmetry) do not depend on the direction of propagation. Rigorous three-dimensional finite-difference time-domain simulations show that the common assumptions about the operation o three-port couplers are sometimes grossly incorrect, as they arise from an oversimplified analytical model. An explanation is given why our results do not violate the Helmholtz reciprocity principle.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Marek Osiński, Marek Osiński, Hosuk Lee, Hosuk Lee, Hemashilpa Kalagara, Hemashilpa Kalagara, Gennady A. Smolyakov, Gennady A. Smolyakov, } "Structure-induced asymmetry between counterpropagating modes in three-port couplers", Proc. SPIE 10526, Physics and Simulation of Optoelectronic Devices XXVI, 1052615 (23 February 2018); doi: 10.1117/12.2295234; https://doi.org/10.1117/12.2295234
PROCEEDINGS
9 PAGES


SHARE
Back to Top