Title :
Space integrating interferometric acousto-optic convolver
Author_Institution :
Gen. Electr. Corp. Res. & Dev. Center, Schenectady, NY, USA
fDate :
3/1/1995 12:00:00 AM
Abstract :
A coherent space integrating convolver using image inversion optics is introduced that provides both high system stability and high output dynamic range with the minimum required output convolution signal temporal and spatial frequency offsets. Test autoconvolutions are generated by the system for amplitude modulated (AM) input signals using a 100 MHz carrier with a 13 MHz modulation, producing the desired time compressed offset carrier-free 26 MHz autoconvolution output with a dynamic range of 47.2 dB measured in a 30 KHz analyzer resolution bandwidth.<>
Keywords :
acoustic signal processing; acousto-optical convolution; acousto-optical devices; acousto-optical modulation; acousto-optical signal processing; amplitude modulation; pulse compression; stability; 100 MHz; 13 MHz; 30 kHz; amplitude modulated input signals; analyzer resolution bandwidth; dynamic range; high output dynamic range; high system stability; image inversion optics; minimum required output convolution signal; space integrating interferometric acousto-optic convolver; spatial frequency offsets; temporal frequency offsets; test autoconvolutions; time compressed offset carrier-free MHz autoconvolution output; Acoustic testing; Amplitude modulation; Convolution; Convolvers; Dynamic range; Frequency; Integrated optics; Optical interferometry; Optical modulation; Stability;
Journal_Title :
Photonics Technology Letters, IEEE
