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Proceedings Paper

Dual IR/RF windows for laser communications
Author(s): Lee M. Goldman; Richard Twedt; Jayson Zigman; Robert Ondercin
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Paper Abstract

Future advanced communications systems will utilize lasers which operate at 1.55 μm backed up by an RF links. To the extent that such systems utilize a common aperture, dual IR/RF windows and domes will be required. The durability of such windows, with respect to rain and sand erosion damage, is an important consideration as damaged surfaces will lead to significant optical degradation for operation at 1.55 μm. This requirement drives the materials choices toward more durable materials such as ALON® Optical ceramic, spinel and sapphire. Single layer windows, with appropriately selected thicknesses of these materials can be used for narrow RF wavebands, but are not adequate for applications requiring broadband RF transparency. To this end, multilayer windows, with durable outer layers of ALON have been developed, and built. Recent results will be presented.

Paper Details

Date Published: 27 April 2009
PDF: 7 pages
Proc. SPIE 7302, Window and Dome Technologies and Materials XI, 730207 (27 April 2009); doi: 10.1117/12.820209
Show Author Affiliations
Lee M. Goldman, Surmet Corp. (United States)
Richard Twedt, Surmet Corp. (United States)
Jayson Zigman, Surmet Corp. (United States)
Robert Ondercin, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 7302:
Window and Dome Technologies and Materials XI
Randal W. Tustison, Editor(s)

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