Resonant Tunneling Quantum Well Integrated Optical Waveguide

PHYSICAL OPTICS CORPORATION (POC) PROPOSES THE FIRST KNOWN SEMICONDUCTOR-BASED (GaAs) OPTOELECTRONIC DEVICE THAT OFFERS FEMTOSECOND, BISTABLE, HIGH-CARRIER DENSITY, LOW VOLTAGE, AND LOW POWER CONSUMPTION ELECTROOPTIC (EO) MODULATING/SWITCHING OPERATION, IN INTEGRATED-OPTIC (WAVEGUIDE) PACKAGING. THIS INGENIOUS QUANTUM WELL (QW) SWITCH/MODULATOR USES THE RESINANT TUNNELING DOUBLE BARRIER QW DIODES, AS A VERY EFFICIENT INJECTOR THAT PROVIDES INHERENT BISTABILITY, NECESSARY FOR OPTICAL SWITCHING OPERATIONS. ITS EFFICIENCY STEMS FROM ITS ULTRA HIGH SPEED, HIGH CARRIER DENSITY, LOW VOLTAGE, AND LOW POWER CONSUMPTION. THIS NEW DEVICE IS THE BASIC BUILDING BLOCK FOR SUPER HIGH SPEED (FSEC) OPTOELECTRONIC COMPUTING AND SIGNAL PROCESSING. THUS, THIS GENERIC CONCEPT HAS POTENTIAL TO SPAN A BROAD VARIETY OF UNIQUE PHOTONIC COMPONENTS, INCLUDING OPTICAL LOGIC GATES, EO MODULATORS, EO SWITCHES, VARIABLE DELAY LINES, AND CROSSBAR RECONFIGURABLE INTERCONNECTS.