DocumentCode :
1516698
Title :
Integrated acoustooptic modules for interferometric RF spectrum analyzers
Author :
Xu, G.D. ; Tsai, C.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
Volume :
3
Issue :
2
fYear :
1991
Firstpage :
153
Lastpage :
155
Abstract :
An integrated acoustooptic (AO) module that consists of a wideband AO Bragg cell, a wide-angle ion-milled concave Bragg grating lens, and a large-aperture titanium-indiffusion proton-exchange lens has been realized in a y-cut LiNbO/sub 3/ waveguide 1*8*16 mm/sup 3/ in size and used to perform interferometric RF spectrum analysis. This module has provided a bandwidth of 205 MHz centered at 350 MHz and single-tone instantaneous and two-tone, third-order spurious-free dynamic ranges of 50 and 40 dB, respectively, at 1.0 mW of 0.6328- mu m laser power and a drive power of 50 mW per RF signal. A pair of such basic AO modules has been integrated in a common LiNbO/sub 3/ substrate 1*10*16 mm/sup 3/ in size to facilitate measurement of the phase difference, and thus the angle of arrival, of RF signals.<>
Keywords :
acousto-optical devices; integrated optics; light interferometry; lithium compounds; spectral analysers; titanium; 0.6328 micron; 1 mm; 1.0 mW; 16 mm; 205 MHz; 50 mW; 8 mm; LiNbO/sub 3/:Ti; angle of arrival; bandwidth; drive power; dynamic ranges; integrated acoustooptic modules; interferometric RF spectrum analyzers; large aperture LiNbO/sub 3/:Ti proton exchange lens; laser power; phase difference; wide-angle ion-milled concave Bragg grating lens; wideband Bragg cell; Bandwidth; Bragg gratings; Dynamic range; Lenses; Performance analysis; Phase measurement; Power lasers; Radio frequency; Spectral analysis; Wideband;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/68.76873
Filename :
76873
Link To Document :
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