DocumentCode
3438762
Title
High performance wideband Bragg cells
Author
Chang, I.C.
Author_Institution
Litton Appl. Technol., San Jose, CA, USA
fYear
1988
fDate
2-5 Oct 1988
Firstpage
435
Abstract
High-performance wideband Bragg cells suited to EW receiver applications were developed using L [111] and S [110] modes in GaP. Efficiency enhancement was demonstrated using a planar phased array design. Demonstrated results include a 1-GHz bandwidth device with a diffraction efficiency of 100% per RF watt. The unified theory of IMPs (intermodulation products) in Bragg cells was applied in the device design. Based on the theory, it is concluded that phased array designs should be used to eliminate IMPs due to nonlinear acoustics
Keywords
acousto-optical devices; 1 GHz; EW receiver; GaP; acousto-optical devices; diffraction efficiency; intermodulation products; nonlinear acoustics; planar phased array; wideband Bragg cells; Acoustic devices; Acoustic diffraction; Attenuation; Bandwidth; Electrodes; Optical attenuators; Optical diffraction; Optical receivers; Phased arrays; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1988. Proceedings., IEEE 1988
Conference_Location
Chicago, IL
Type
conf
DOI
10.1109/ULTSYM.1988.49414
Filename
49414
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