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Updated: Jun 6, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

Signal detection for page-accessoptical memories with intersymbol interference.

J F Heanue, K Gürkan, L Hesselink

|November 19, 2010

Summary

This summary is machine-generated.

We developed a new data detection technique for optical memory that uses the Viterbi algorithm and decision feedback. This method improves bit-error-rate performance, enabling larger data pages and relaxed design tolerances for optical components.

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Area of Science:

Optical data storage
Information theory
Signal processing

Background:

Two-dimensional page-access optical memory systems face challenges with data detection accuracy.
Intersymbol interference (ISI) degrades bit-error-rate (BER) performance in optical data storage.

Purpose of the Study:

To propose and evaluate a novel data detection technique for two-dimensional page-access optical memory.
To enhance the bit-error-rate performance of optical memory systems affected by intersymbol interference.

Main Methods:

Combined sequence detection using the Viterbi algorithm with decision feedback.
Implemented a row-by-row data processing approach compatible with optical detector output.

Main Results:

The proposed technique significantly improves bit-error-rate performance in the presence of intersymbol interference.
The row-by-row operation simplifies data processing as it is output from the detector.

Conclusions:

The Viterbi algorithm combined with decision feedback offers a robust solution for data detection in optical memory.
This approach can potentially relax optical component design tolerances or allow for larger data pages.