ADHESIN BASED STAPHYLOCOCCAL IMMUNOTHERAPEUTICS

Not Available The development of a high-speed corner cube laser beam modulator for free space communication is the subject of this proposal. Free space laser communication is considered to be a viable, cost-effective approach in many applications requiring point-to-point secure communication. In one such application, useful for small satellites constrained by power consumption, a ground CW laser is used and a reflecting corner cube modulator is placed onboard the satellite. For such a system to be accepted, a high-speed modulator operating at 1 MHz or higher rates is needed. Foster-Miller proposes to use a voltage controlled diffractive optical element (DOE) as a high-speed modulator for this application. When fully implemented, the modulator will achieve a megahertz modulation rate, will have a large active aperture of more than 50 mm, and will be wavelength insensitive from the visible to IR range. One of the most important characteristics of the proposed device, which distinguishes it from other designs, is its very short response time consistent with high contrast ratio of better than 100:1, and large aperture. The anticipated drive power requirement of the proposed modulator is less than 10 mW/cm (sup 2). The proposed modulator can be produced using established semiconductor manufacturing technology.