CONTINUOUSLY-VARIABLE ULTRASONIC-OPTICAL DELAY LINE
- 15 October 1966
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 9 (8) , 312-314
- https://doi.org/10.1063/1.1754764
Abstract
Experimental results are reported on a continuously-variable delay line using acoustic waves to diffract and frequency-shift a portion of an argon ion laser beam. Data was obtained from 300 to 700 MHz utilizing thin-film CdS transducers deposited on a single-crystal Z-cut quartz rod placed within the laser cavity. The diffracted, frequency-shifted beam was optically heterodyned on a PIN detector. Variable delays of the order of 10 μsec were obtained by varying the distance from the CdS transducer to the beams' intercept point. A novel folded-acoustic path configuration is also described.Keywords
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