Title :
Optical frequency scanning without deflection using an acoustooptic modulator
Author :
Neev, J. ; Kowalski, Frank V.
Author_Institution :
Dept. of Phys., Colorado Sch. of Mines, Golden, CO, USA
fDate :
10/1/1990 12:00:00 AM
Abstract :
A change in the RF frequency driving an acoustooptic modulator causes a change in the deflection of the diffracted light beam. It is found that for a certain angle of incidence upon multiple transducer acoustooptic modulators one can obtain diffracted beams which show no change in deflection for a change in acoustic frequency. However, the change in acoustic frequency is imparted to the optical beam. This effect occurs over an RF frequency band centered about the Bragg frequency. An explanation of this effect is presented
Keywords :
acousto-optical devices; light diffraction; optical modulation; Bragg frequency; RF frequency; acoustic frequency; acoustooptic modulator; diffracted light beam; light beam deflection; multiple transducer acoustooptic modulators; optical beam; optical frequency scanning; Acoustic beams; Acoustic diffraction; Acoustic propagation; Acoustic transducers; Acoustic waves; Optical beams; Optical diffraction; Optical modulation; Optical propagation; Radio frequency;
Journal_Title :
Quantum Electronics, IEEE Journal of
