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Electrooptic integrated optics spectrum analyzer: an experimental investigation.
1Institutet for Optisk Forskning, S-100 44 Stockholm, Sweden.
Applied Optics
|April 8, 2010
Summary
This study experimentally verifies an integrated optics spectrum analyzer. The device uses the electrooptic effect for Fourier analysis of electronic signals, showing promising results for signal processing applications.
Area of Science:
- Photonics and optical engineering
- Integrated optics
- Electrooptic devices
Background:
- Integrated optics spectrum analyzers offer potential for high-speed signal processing.
- Previous theoretical work established the principle of an electrooptic spectrum analyzer using a metal electrode array as a spatial light modulator.
- Experimental validation was needed to confirm the theoretical predictions.
Purpose of the Study:
- To experimentally verify the operational principle of an integrated optics spectrum analyzer.
- To compare experimental results with theoretical predictions for device performance.
- To explore signal processing properties of the electrooptic spectrum analyzer.
Main Methods:
- Theoretical investigation of an integrated optics spectrum analyzer based on the linear electrooptic effect.
- Experimental setup using prism coupling in a Lithium Niobate (LiNbO3) waveguide.
- Application of voltage distributions (square wave and rect functions) to an electrode array.
- Analysis of diffracted light intensity patterns at a detector array.
Main Results:
- The first experimental results confirming the principle of operation are reported.
- Experimental data is compared with theoretical predictions, showing good agreement.
- The influence of electrode array voltage distributions on a guided optical beam was investigated.
- The theory was extended to discuss signal processing properties.
Conclusions:
- The experimental results validate the theoretical model of the integrated optics spectrum analyzer.
- The device demonstrates the potential for performing Fourier analysis on electronic signals using optical methods.
- Further development could lead to practical applications in high-speed signal processing and optical computing.
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