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Related Experiment Video

Updated: Jul 16, 2025

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

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Published on: April 1, 2020

Precise pointing angle deviation measurement for beaconless laser communication.

Yansheng Zou, Shenmao Zhang, Qirun Fan

|September 14, 2023

Summary

This summary is machine-generated.

A new characteristic signal method precisely measures pointing angles in beaconless laser communication. This technique enhances sensitivity by 9.17 dB, improving communication power budgets.

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Last Updated: Jul 16, 2025

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Area of Science:

Optics and Photonics
Optical Communication Systems

Background:

Precise pointing angle measurement is vital for beaconless laser communication.
Conventional intensity methods lack sensitivity for this application.

Purpose of the Study:

To develop a highly sensitive method for measuring pointing angles without a beacon.
To enhance the performance of beaconless laser communication systems.

Main Methods:

Proposing the characteristic signal method by superimposing a low-frequency sinusoidal signal.
Utilizing a fast cyclic cross-correlation algorithm to reduce complexity.

Main Results:

The characteristic signal method improved measuring sensitivity by approximately 9.17 dB.
The power budget for communication increased by about 1.96 dB compared to the intensity method.

Conclusions:

The characteristic signal method offers superior sensitivity and performance for beaconless laser communication.
This method provides a practical solution for precise angle measurement in optical systems.