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One of problems of high resolution acousto-optic tunable filters (AOTF) design and manufacture is to make an acousto- optic cell with a large length of interaction. The traditionally used cells on an orthogonal diffraction have a disadvantage that their interaction length is determined by the size of the piezoelectric transducer. In addition, a large transducer has a high capacity and small radiation resistance, which is extremely inconvenient. Therefore, in this case, segmented transducers usually are used. However, such partitioning results in more complex AOTF construction and matching of the piezoelectric transducer with an RF signal generator.© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
