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Microwave characteristics of polymer electro-optic modulators.

P G Dinesen, T Rasmussen, C Lester

|November 25, 2010

Summary

This study uses the finite difference method to calculate microwave properties for polymer electro-optic modulators. Considering electrode thickness is crucial for optimizing modulator design and environmental stability.

Area of Science:

Electrical Engineering
Materials Science
Optoelectronics

Background:

Polymer-based electro-optic modulators are key components in optical communication systems.
Accurate calculation of microwave properties is essential for device performance and optimization.
Traditional methods may not fully account for structural nuances like electrode thickness.

Purpose of the Study:

To calculate the microwave properties of polymer-based electro-optic modulators using the finite difference method.
To investigate the impact of electrode thickness on modulator design.
To explore the benefits of shielded microstrip configurations for modulator optimization and stability.

Main Methods:

Application of the finite difference method to solve the Laplace equation.

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Utilization of a nonequidistant grid for efficient computation.

Analysis of both open microstriplike and shielded microstriplike structures.

Calculation of mode index and characteristic impedance.

Main Results:

The finite difference method accurately calculates microwave properties for the analyzed structures.
Finite electrode thickness significantly influences electro-optic modulator design.
Shielded microstrip configurations allow for simultaneous optimization and environmental pacification.

Conclusions:

The finite difference method provides a robust approach for analyzing electro-optic modulators.
Accurate modeling must incorporate finite electrode thickness for effective design.
Shielded configurations offer enhanced performance and stability in electro-optic modulators.