Paper
18 June 2007 Sharp trench waveguide bend with photonic crystals: simulation, fabrication and characterization
Xudong Cui, Christian Hafner, Franck Robin, Daniel Erni, Kakhaber Tavzarashvili, Ruediger Vahldieck
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Abstract
In this paper, a three dimensional analysis of an ultra-compact sharp trench waveguide bend structure modified with small local photonic crystals is presented. The structure used here is based on a previous proposal [1]. To fully investigate the behavior of the structure, especially mode coupling and off plane radiation losses - (that are ignored in two dimensional calculations [1]) as well as the limitations caused by the effective index approximation in the two-dimensional (2D) simulations, we simulated realistic three dimensional structures using the finite integration technique. Furthermore, a structure on an InP substrate is compared with a Si/SiO2 based structure in order to check the influence of vertical index contrast on the device performance. One of the structures based on InP substrate was then fabricated and characterized to validate our conceptual predictions.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xudong Cui, Christian Hafner, Franck Robin, Daniel Erni, Kakhaber Tavzarashvili, and Ruediger Vahldieck "Sharp trench waveguide bend with photonic crystals: simulation, fabrication and characterization", Proc. SPIE 6617, Modeling Aspects in Optical Metrology, 66170D (18 June 2007); https://doi.org/10.1117/12.726017
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Cited by 2 scholarly publications.
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KEYWORDS
Waveguides

Cladding

Device simulation

Mirrors

3D modeling

Medium wave

Photonic crystals

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