Method and apparatus for the spectral range enlargement of acous

Details Method and apparatus for the spectral range enlargement of acous Method and apparatus for the spectral range enlargement of acous

1982-09-14

1986-03-11

Corbin, John K.

G02F 111

Patent

active

045751862

ABSTRACT:
The invention relates to a method and an apparatus for enlarging the spectral range of an acousto-optic tunable filter by extending the operation of the transducer structure to its third harmonic. The transducer structure consists of a plurality of individual transducer elements in electrical communication through a switching network which modifies the total capacitance of the transducer structure to provide a satisfactory impedance match at both the fundamental and the third harmonic.

REFERENCES:
patent: 3459603 (1973-09-01), Eschler

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