Index profile engineering of multimode interference couplers

A. Ortega-Moñux; I. Molina-Fernández; J. G. Wangüemert-Pérez

doi:10.1117/12.853236

1 December 2009 Index profile engineering of multimode interference couplers

A. Ortega-Moñux, I. Molina-Fernández, J. G. Wangüemert-Pérez

Proceedings Volume 7630, Passive Components and Fiber-based Devices VI; 76300X (2009) https://doi.org/10.1117/12.853236
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

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 2x4 MMI 90º hybrid on SOI submicrometer strip waveguides (silicon-wires). Results show that the optimized device exhibits an almost ideal performance.

Citation Download Citation

A. Ortega-Moñux, I. Molina-Fernández, and J. G. Wangüemert-Pérez "Index profile engineering of multimode interference couplers", Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76300X (1 December 2009); https://doi.org/10.1117/12.853236

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