Award Data

Lift and drag characteristics of arbitray, irregularly shaped fragments will be computed using a combination of Reynolds averaged Navier-Stokes (RANS) equations and the Large-Eddy Simulation (LES) method. Cartesian meshes will be generated for the shapes, and accurate lift and drag characteristics will be post-processed using the simulation data bases. Outputs will be in the form of tables that ca ...

Phased arrays radars can expect considerable improvements with RF photonics. Current TR modules use numerous MMIC chips, ferrite circulators and phase shifters and quasi-optical true-time-delay (TTD). Transmission power distribution and synchronization across multiple RF interfaces can be improved. Large scale integration could address the problem of interconnecting boards with GHZ RF outputs but ...

Sonalysts, Inc. proposes to develop a framework to apply game theory algorithms within a modified commercial simulation architecture in order to develop stressing engagement scenarios against which to measure the optimum employment of Ballistic Missile Defense System (BMDS) assets. This project will leverage Sonalysts’ commercial simulation approach and technology to provide computations, graphi ...

To provide the Airborne Laser (ABL) precision ranging and 3-D track refinement capability for the next generation active ranging system (NGARS), Voxtel will develop an avalanche photodiode (APD) receiver. Unlike the original ARS, which uses a 10.6 µm CO2 laser, Voxtel’s InGaAs-based ARS receiver is designed for high-speed photon counting between 1.0 – 1.6 µm. Operation in the short-wave infr ...

Practical use of a RFC for solar powered winged aircraft and lighter-than-air craft has been limited due to weight constraints and the paucity of test data from and practical experience with closed loop RFC hardware. The lightweight cells and endplates developed in Phase I of this program will be applied to the practical implementation of a closed-loop regenerative fuel cell. This RFC will build ...

Department of Defense (DOD) interset in developing laser weaponary in the 1960's. Solid-State lasers have been a canidate technology from the earliest time, but for various reasons, this technology has not been developed to a point where they are scalable to high average power lasers. The development of diode laser pump arrays has improved efficiency, but at a considerable increase in systems cost ...

Photonic devices providing high performance spectral filtering, multiplexing, optical waveform processing, and signal routing will be designed, fabricated, and characterized. The devices are based on photolithographic scribing of holographic structures onto the surface of planar waveguides and operate on intra-guide signals. The holographic structures provide a manufacturable approach to 2D phot ...

M Cubed manufactures many commercial components out of reaction bonded SiC and B4C on a large scale. The key advantages of these materials are high specific stiffness (high modulus and low density) and high thermal stability (high thermal conductivity and low CTE). However, these materials have limited toughness precluding their use in many potential applications including some missile defense com ...

This small business innovation research is aimed to generate tens of mJ pulse energy in a pulse width of < 10 n-sec from an air-cooled multicore fiber laser array. This laser can be packaged into a compact and light-weight enclosure that requires a minimum thermal management. PC Photonics has demonstrated coherent power-combining of a 7-core and also a 19-core Yb-doped fiber laser array embedded ...

An internal, low power accelerator for hydrogen peroxide (H2O2) catalytic decomposition reactors can provide significant size, weight and cost reductions over traditional external heaters used to elevate the initial temperature of catalytic reactors for the Airborne Laser. Electrical power consumption could potentially be reduced several orders of magnitude by utilizing catalytic Microlithr eleme ...