Acoustooptic modulator for optical fiber waveguides

Details Acoustooptic modulator for optical fiber waveguides Acoustooptic modulator for optical fiber waveguides

1977-01-31

1978-01-10

Sikes, William L.

Oscillators

Molecular or particle resonant type

350 96WG, 350161W, H01S 310

Patent

active

040681912

ABSTRACT:
An acoustooptic modulator is disclosed in which light may be modulated while propagating through an optical fiber waveguide through the use of focussed acoustic waves. The modulator is formed by encircling a portion of the optical fiber waveguide in an optical communications system with an acoustic transducer. Due to the encircling of a portion of the waveguide by the transducer, the acoustic waves which are generated in the optical fiber waveguide material are focussed inwardly to the center so that the energy densities where acoustooptic modulation occurs are high. Therefore, the acoustic driving powers and modulation efficiencies are highly favorable.

REFERENCES:
patent: 3435372 (1969-03-01), Aas et al.
patent: 3464027 (1969-08-01), DeMaria
patent: 3495894 (1970-02-01), Lenzou et al.
patent: 3544916 (1970-12-01), Angelbeck
patent: 3571737 (1971-03-01), Miller

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