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arXiv · 2001.02642

A verified equivalent-circuit model for slotwaveguide modulators

Heiner Zwickel·Stefan Singer·Clemens Kieninger·Yasar Kutuvantavida·Narek Muradyan·Thorsten Wahlbrink·Shiyoshi Yokoyama·Sebastian Randel·Wolfgang Freude·Christian Koos
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Abstract

We formulate and experimentally validate an equivalent-circuit model based on distributed elements to describe the electric and electro-optic (EO) properties of travellingwave silicon-organic hybrid (SOH) slot-waveguide modulators. The model allows to reliably predict the small-signal EO frequency response of the modulators exploiting purely electrical measurements of the frequency-dependent RF transmission characteristics. We experimentally verify the validity of our model, and we formulate design guidelines for an optimum trade-off between optical loss due to free-carrier absorption (FCA), electro-optic bandwidth, and {\pi}-voltage of SOH slot-waveguide modulators.

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Heiner Zwickel, Stefan Singer, Clemens Kieninger, Yasar Kutuvantavida, Narek Muradyan, Thorsten Wahlbrink, Shiyoshi Yokoyama, Sebastian Randel, Wolfgang Freude, Christian Koos. 2019-12-10. A verified equivalent-circuit model for slotwaveguide modulators. https://doi.org/10.1364/oe.383120

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