Title :
Improving Multimode Interference Couplers Performance Through Index Profile Engineering
Author :
Molina-Fernández, Inigo ; Ortega-Moñux, Alejandro ; Wangüemert-Pérez, Juan Gonzalo
Author_Institution :
Dept. de Ing. de Comun., Malaga Univ., Malaga
fDate :
5/15/2009 12:00:00 AM
Abstract :
In this paper, a new technique is developed to improve high index contrast multimode interference (MMI) coupler performance. The technique is based on removing modal phase errors by introducing a perturbation in the lateral refractive index of the MMI section. Simulation results for several MMI devices show that this technique is able to provide extremely low excess losses and imbalance for all situations.
Keywords :
electric connectors; perturbation theory; refractive index; index profile engineering; modal phase errors; multimode interference couplers; perturbation; refractive index; Arrayed waveguide gratings; Couplers; Interference; Optical imaging; Optical losses; Optical receivers; Optical waveguides; Phased arrays; Polarization; Refractive index; MMI coupler; Multimode interference (MMI); power splitter;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2009.2016985
