Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1997-06-24
1999-10-12
Epps, Georgia
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359247, 359261, 359263, G02F 1015, G02F 119
Patent
active
059662344
ABSTRACT:
An optical fiber compatible modulator device provides high-contrast levels switchable using modest applied voltages. As a two-port optical modulator, a normal light signal incident at a first port is deflected to a non-normal direction for passage through an absorption layer (e.g., a multiple-quantum well (MQW) layer), the absorption layer having an adsorption characteristic which changes as a function of a voltage applied across it. The non-normal direction light signal exiting the absorption layer is deflected to a normal light signal for output from a second port of the optical modulator. As a one-port optical modulator, a normal light signal received at a first port is deflected to a non-normal direction for passage through an absorption layer. A reflector reflects a non-normal direction light signal exiting the layer back through the layer to the deflector means and is output at the port of the optical modulator.
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Ford Joseph Earl
Lentine Anthony Lodovico
Woodward Ted Kirk
Burke Margaret
Epps Georgia
Lucent Technologies Inc
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