Distortion in an Electrooptic Link


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Table of Contents

Distortion in an Electrooptic Link

Plan of Attack

A Mach-Zehnder Modulator

Matched Waveguides

The Electrooptic Effect

The Mach-Zehnder Interferometer

Interferometer, continued...

Interferometer Output

Photodetector Output

Transfer Characteristic

RF Input

Bias Selection

Fourier Expansion

The Fourier Coefficients

...The Fourier Coefficients

Photodetector Output

Link Gain

1 dB Compression Point


Another Fourier Expansion

The Fundamental Terms

Third-Order Intermodulation

Intermodulation Grows with Vp

Straight-Line Approximations

Third-Order Intercept

To Conclude


Author: Bruce A. Black

Email: bruce.a.black@ieee.org

Home Page: http://www.rose-hulman.edu/~black