You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
21 September 1979Acousto-Optic Signal Processing Device Performance
Acoustooptic devices provide the function of electrical to optical input transducers in many real-time optical processors of electronic signals. Particular implementations and applications emphasize modulation in space or time connected by a traveling-wave relation. Principal two-dimensional processor.s are spectrum analyzers and correlators. Multiport AO cells are useful in three-dimensional optical processing of two variables, such as frequency and phase. The performance of AO devices is limited by ef5iciency-bandwidth aperture tradeoffs which limit time bandwidths to approximately 10 for most practical devices. High efficiency devices (100%/W) have been developed for bandwidths up to approximately 600 MHz. At wider bandwidths, material attenuation and acoustooptic characteristics sharply limit efficiency, although near ideal piezoelectric transducers can be fabricated.
The alert did not successfully save. Please try again later.
David L. Hecht, "Acousto-Optic Signal Processing Device Performance," Proc. SPIE 0180, Real-Time Signal Processing II, (21 September 1979); https://doi.org/10.1117/12.957325