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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

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Published on: April 1, 2020

Optimization of optical systems.

E B Champagne¹

¹Laser Technology Branch, Air Force Avionics Laboratory, Wright-Patterson AFB, Ohio, USA.

|January 9, 2010

Summary

This summary is machine-generated.

Optimizing optical detection systems is key for long-range performance. Using coherent detection or specific noncoherent detection strategies can improve signal-to-noise ratios for advanced optical communication systems.

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Area of Science:

Optical Engineering
Communications Systems
Signal Processing

Background:

Long-range optical systems face challenges competing with microwave systems due to signal-to-noise ratio limitations.
Understanding the power signal-to-noise ratios (SNR) for both coherent and noncoherent optical detection is crucial for system design.

Purpose of the Study:

To analyze the SNR expressions for coherent and noncoherent optical detection.
To identify optimization strategies for long-range optical systems to enhance performance.
To present a design procedure for achieving signal shot-noise limited operation in noncoherent detection.

Main Methods:

Detailed examination of the SNR expression for noncoherent optical detection.
Comparative analysis of coherent and noncoherent detection strategies.
Development of a design procedure for pulsed noncoherent optical detection.

Main Results:

Optimization is necessary for long-range optical systems to rival microwave counterparts.
Coherent detection offers an optimization path.
Noncoherent detection can be optimized when the signal is the dominant noise factor.

Conclusions:

A design procedure enables signal shot-noise limited operation with noncoherent detection using pulsed operation.
This approach facilitates the development of simple, high-data-rate, extremely long-range optical systems.