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Not Available We propose to investigate the feasibility of manufacturing a simple waveguide laser that would demonstrate all of the qualities of fiber lasers while utilizing the simple pumping scheme of an side pumped Nd:YAG laser. The Phase I effort will involve modeling of the system and Phase II will be construction of a prototype. We will investigate a wound single mode rare earth doped fiber ...

Not Available NEA Electronics, Inc. (NEA) is a manufacturer of electro-mechanical products, specializing in the development of innovative hold down and release mechanisms for the aerospace industry. NEA has designed and manufactured two prototype release mechanisms with unique capabilities. The Model 9111 rod release mechanism is simple, highly reliable, light weight and cost effective. It is cap ...

Not Available The proposed effort utilizes the experience gained from over 20 years of work performed by the Optical Sciences Company in the area of atmospheric propagation, wavefront sensing and adaptive optics technology to develop new wavefront compensation algorithms that advance the state-of-the-art and provide new improved levels of performance when propagation through the turbulence of int ...

Not Available Q-DOT proposes to develop a miniature oscillator MINO) in a small (0.2 x 0.2 x 0.5 ), PCMCIA-card-compatible module. The MINO will oscillate at a frequency in the range of 1-10 GH (nominally 6Ghz). The MINO is specifically designed to drive high performance analog-to-digital converters (ADCs) in advanced digital receivers. These 16-bit ADCs are characterized by 100mhz bandwidth ...

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Not Available Adaptive optics systems for imaging or beam projection through the atmosphere are designed to compensate for the optical effects of turbulence. These effects enter in as phase perturbations distributed along the propagation path. Conventional adaptive optics systems attempt to compensate for these effects by means of phase-only corrections applied at a plane conjugate to the apertur ...

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Not Available Dynamic Structures and Materials proposes to develop dissipative acoustic arrays for the control of interior noise in launch vehicle payload fairings. The innovation in this work is the use of discrete noise control sources that utilize feedback control to dissipate acoustic energy. Acoustic energy dissipation is a robust method of reducing sound pressure levels in the interior of t ...

Not Available In the course of developing the solar powered Pathfinder and Centurion high altitude long endurance (HALE) uninhabited air vehicles (UAVs), AeroVironment has done extensive investigations into the effects of atmospheric turbulence on this unusual class of aircraft. This investigation found that turbulent loads are the driving factor in the design of these vehicles. In particular, ...