Acoustic-optic modulator having two transducers

Details Acoustic-optic modulator having two transducers Acoustic-optic modulator having two transducers

1997-08-15

1999-05-04

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave directional modulation

359305, 359285, 359323, G02F 133

Patent

active

059009667

ABSTRACT:
An acousto-optic modulator having an ultrasonic medium for controlling light from a light source by diffracting the light and a transducer portion having electrodes for generating an acoustic wave in the ultrasonic medium, wherein the transducer portion includes two transducers each having an electrode. The AOM is provided with two electrodes by using two transducers, thereby facilitating impedance matching with a driver. The two transducers may be installed so that their polarization directions are opposite to each other, thereby obtaining maximum power transfer to the ultrasonic medium.

REFERENCES:
patent: 4516838 (1985-05-01), Bademian
patent: 4638266 (1987-01-01), Auch et al.
patent: 4867543 (1989-09-01), Bennion et al.
patent: 5002349 (1991-03-01), Cheung et al.
patent: 5002395 (1991-03-01), Shah
patent: 5083856 (1992-01-01), Hatori et al.

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