Array Tilt in the Atmosphere and Its Effect on Optical Phased Array Performance
Document Type
Article
Publication Date
8-1-2018
Abstract
This paper investigates atmospheric array tilt and its effect on target-in-the-loop optical phased array (OPA) performance. Assuming a direct-solve, piston-only-phase-compensation OPA, two expressions for the atmospheric array tilt variance are derived using Mellin transform techniques. The first—the “full” array tilt variance—is germane when the OPA is sensitive to atmospheric tilt and is shown to significantly impact OPA target-plane intensity. The second—the Zernike-tilt-removed array tilt variance—is relevant when a separate system compensates for atmospheric tilt (the more likely scenario) and is shown to negligibly affect OPA performance. To show how atmospheric array tilt errors affect target-plane intensity, moments of the far-zone (or focused) array intensity, as functions of the array tilt variance, are derived and discussed. Lastly, Monte Carlo simulation results are presented to validate the theoretical array tilt variance expressions.
Abstract © OSA.
Source Publication
Journal of the Optical Society of America A
Recommended Citation
Hyde, M. W. (2018). Array tilt in the atmosphere and its effect on optical phased array performance. Journal of the Optical Society of America A, 35(8), 1315–1323. https://doi.org/10.1364/JOSAA.35.001315
Comments
© 2018 Optical Society of America. under the terms of the OSA Open Access Publishing Agreement. Authors and readers may use, reuse, and build upon the article, or use it for text or data mining without asking prior permission from the publisher or the Author(s), as long as the purpose is non-commercial and appropriate attribution is maintained. All other rights are reserved.
The "Link to Full Text" button on this page loads the full article [HTML] at the publisher website. A PDF of the article is available from that location.