Analysis of fiber-chip coupling for general high-index contrast waveguides

Christoph A. Waechter; Dirk Michaelis

doi:10.1117/12.566360

16 November 2004 Analysis of fiber-chip coupling for general high-index contrast waveguides

Proceedings Volume 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers; (2004) https://doi.org/10.1117/12.566360
Event: Photonics North, 2004, Ottawa, Ontario, Canada

Abstract

Current software simulation tools in integrated optics allow to tackle directly a multitude of complex problems which occur in high index contrast waveguiding. Appropriate eigenmode solvers and propagation schemes account for the vectorial character of the fields, and transmissive and reflective device properties can be derived. For the fibre-chip coupling of high index contrast waveguides the field matching requires to decrease the mode diameter by more than an order of magnitude. If photonic crystal waveguides are considered, the match of impedance and phase additionally call for attention. Generalized coupling integrals based on the modes at both sides of an interface take all these effects into account. This allows for an efficient analysis of conventional waveguide to photonic crystal waveguide interfaces. Moreover, free-space to waveguide coupling can be analysed as well, if an appropriate field transfer from vectorial raytrace to wave propagation is implemented. Thus, the design of hybrid mode transforming optics for fibre-chip coupling including micro-lenses and integrated waveguide taper structures can be addressed.

Citation Download Citation

Christoph A. Waechter and Dirk Michaelis "Analysis of fiber-chip coupling for general high-index contrast waveguides", Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); https://doi.org/10.1117/12.566360

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