Open AccessTHE BANDWIDTH AND SCANNING LINEARITY OF PARATELLURITE ACOUSTO-OPTICAL DEFLECTORS
Author(s) -
Jing Xu
Publication year - 1978
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.27.421
Subject(s) - linearity , bandwidth (computing) , diffraction , optics , transducer , bragg's law , acousto optics , ultrasonic sensor , materials science , acoustics , physics , computer science , telecommunications , diffraction grating , quantum mechanics
According to the actual practical condition of acousto-optical deflectors, by solving Dixon equations of abnormal Bragg diffraction under the condition of fixed incident light direction ?1, the functional dependences of the ultrasonic wave direction ?a. which gave rise the acousto-optical interaction and the diffraction light direction ?2 on the frequency f are obtained. From the ?a-f relationship, the important design parameters, i.e., the Bragg bandwidth and the transducer length, can be determined accurately. The ?2-f relationship shows good linearity, hence the previously proposed corrections on scanning linearity appear to be unnecessary.