LASER DIODE ARRAYS

SOPHISTICATED OPTICAL C(3)I, LASER COUNTERMEASURE, AND BEAMRIDER WEAPON SYSTEMS REQUIRED THE EFFICIENT INTEGRATION AND PROCESSING OF HIGH PERFORMANCE OPTICAL TRANSMITTING AND RECEIVING SUBSYSTEMS. E-TEK PROPOSES PARALLEL SUBARRAYS INTEGRATION AND SIGNAL/DATA PROCESSING. MULTIAPERTURE SEMICONDUCTOR LASER AND DETECTING PHASEDARRAYS ARE ALSO PROPOSED FOR VARIOUS SYSTEM APPLICATIONS. THE LASER PHASED-ARRAY CAN PROVIDE HIGH POWER OUTPUT (UP TO SEVERAL THOUSANDS OF KILOWATTS), NARROW BEAMWIDTH (TO LESS THAN 1 URAD), RAPID BEAM STEERING (LESS THA 1 US), HIGH FREQUENCY MODULATION (HIGHER THAN 10 GHZ), AND HEMISPHERICAL COVERAGE. THE OPTICAL RECEIVING PHASED-ARRAY OFFERS SUPERIOR PERFORMANCES OF LOW NOISE, HIGH SENSITIVITY, AND LARGE APERTURE SIZE THAN THE CONVENTIONAL FOCAL PLANE ARRAY. COHERENT DETECTION WILL BE INVESTIGATED AND DESIGNED TO IMPROVE SYSTEM SENSITIVITY AND DYNAMIC RANGE. COMPONENTS/DEVICES WILL BE DESIGNED AND OPTIMIZED, WHICH WILL DIRECTLY LEAD TO PHASE II HARDWARE FABRICATION, VERIFICATION, AND DEMONSTRATION.