Design, fabrication and characterization of wideband high diffraction efficiency phased array Bragg cells

Author

Chinn, S.B. ; Henderson, D.K.

Author_Institution

TRW Electron. Syst. Group, Redondo Beach, CA, USA

fYear

1990

fDate

4-7 Dec 1990

Firstpage

679

Abstract

The fundamental design issues associated with wideband, high-diffraction-efficiency phased-array Bragg cells are addressed. Also discussed are the key fabrication steps necessary to obtain optimal results. TRW has fabricated and tested 1-GHz-bandwidth (f_c=2.5 GHz), 2-GHz bandwidth (f_c=2.0 GHz), and 2-GHz-bandwidth (f_c=3.0 GHz) GaP longitudinal-mode Bragg cells. Results presented include diffraction efficiency (30%/RF watt, 1-GHz-bandwidth) (8%/RF watt, 2-GHz-bandwidth), two-tone third-order intermodulation products, and frequency response

Keywords

III-V semiconductors; acoustic arrays; acousto-optical devices; frequency response; gallium compounds; 1 GHz; 2 GHz; 2.5 GHz; 3 GHz; GaP; acoustooptic medium; design issues; diffraction efficiency; fabrication; frequency response; longitudinal-mode Bragg cells; two-tone third-order intermodulation products; wideband high diffraction efficiency phased array Bragg cells; Acoustic beams; Acoustic diffraction; Acoustic transducers; Acoustic waves; Bandwidth; Fabrication; Frequency; Optical diffraction; Phased arrays; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/ULTSYM.1990.171450

Filename

171450