Quantum field-effect directional coupler

Details Quantum field-effect directional coupler Quantum field-effect directional coupler

1991-03-28

1992-04-14

James, Andrew J.

357 22, H01L 29161, H01L 29208, H01L 2980

Patent

active

051052326

ABSTRACT:
A quantum field-effect directional coupler is described comprised of two quantum waveguides closely spaced apart with an adjacent gate electrode over the space between waveguides. The coupling of electron probability density between waveguides is controlled by the voltage applied to the gate electrode. The coupler implements a voltage-controlled current switch. Several couplers can be connected to perform multiplex/demultiplexing functions.

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