Title :
Index profile engineering of Multimode Interference couplers
Author :
Ortega-Moñux, A. ; Molina-Fernández, I. ; Wangüemert-Pérez, J.G.
Author_Institution :
Dpto. Ingenier?a de Comunicaciones, ETSI. Telecomunicaci?n, Universidad de M?laga, 29071, (Spain)
Abstract :
We propose a technique to improve the performance of high index contrast Multimode Interference (MMI) couplers. It is shown that imaging errors can be almost completely removed if the refractive index profile of the multimode region is properly designed. The proposed technique has been applied to design a 2×4 MMI 90° hybrid on SOI submicrometer strip waveguides (silicon-wires). Results show that the optimized device exhibits an almost ideal performance.
Keywords :
Arrayed waveguide gratings; Circuits; Couplers; Fabrication; Interference; Optical imaging; Optical receivers; Optical waveguides; Refractive index; Strips; MMI coupler; Multimode Interference (MMI); hybrid coupler; power splitter;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
