With the maturity of the technology base in acousto-optics
and the emergence of discrete optical processors, researchers must now move beyond the comfortable world of Fourier transforms, convolutions and correlations and into the world of matrix operations.
tunable filter (AOTF) is a good choice for the complementary system because it is easily integrated into a DIAL system.
The analog signal processing methods that can be considered as SAW's competitors are acousto-optics
, electro-optics, bulk acoustic waves and magnetostatic waves.
Oplink acquired the innovative Acousto-Optic
(AO) technology through its acquisition last year of Aurora Photonics, a leader in the development of this technology.
This paper illustrates how an acousto-optic
based signal processor is used to eliminate this bandwidth limitation.