Acousto-optic modulator for emulating atmospheric fade in free-space optical communication systems

Evan J. Katz; Yousef K. Chahine; Brian E. Vyhnalek; Sarah A. Tedder

doi:10.1117/12.2546511

2 March 2020 Acousto-optic modulator for emulating atmospheric fade in free-space optical communication systems

Evan J. Katz, Yousef K. Chahine, Brian E. Vyhnalek, Sarah A. Tedder

Proceedings Volume 11272, Free-Space Laser Communications XXXII; 1127219 (2020) https://doi.org/10.1117/12.2546511
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

This report presents our model for atmospheric turbulence fade for an Earth/Space system, and our physical emulation test bed components. For modeling the atmosphere, we have used the Hufnagel-Valley model, in combination with Cn² measurement parameters and MATLAB software. From these models, power fluctuation time series were generated and subsequently converted to voltages that were uploaded into an acousto-optic modulator and signal generator. The acousto-optic modulator is a compact, fiber-based device that has a maximum 55 MHz response and 45 dB of range, making it a viable component for future integration into a laboratory atmospheric emulation test bed. Results from our fade model implementation with the acousto-optic modulation system will be offered and discussed.

Citation Download Citation

Evan J. Katz, Yousef K. Chahine, Brian E. Vyhnalek, and Sarah A. Tedder "Acousto-optic modulator for emulating atmospheric fade in free-space optical communication systems", Proc. SPIE 11272, Free-Space Laser Communications XXXII, 1127219 (2 March 2020); https://doi.org/10.1117/12.2546511

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available