Agile Laser Filters Visual Simulation Device

Physical Optics Corporation (POC) proposes to develop a new Agile Laser Filter Visual Simulation (ALFVIS) look-through viewer system for research into the effects of agile laser eye protection (AgLEP) devices on human vision. ALFVIS will simulate anyagile laser filter for single or multiple laser wavelengths within the visible to near-infrared region, including broadband static background and fast dynamic agile laser filter effects. These unique capabilities are achieved through the use of POC'smultiplexed holographic filter elements (HFEs) integrated with a high speed electro-optic polarization switch. A full range of wavelength multiplexed HFEs allows easy simulation of spectral characteristics to match the AgLEP being emulated. The ALFVIStechnology has enormous commercial potential because of its unique integration of available commercial components, and low cost fabrication techniques. In Phase I, POC demonstrated the feasibility of the approach through design, analysis, and experimentalsetup of a look-through viewer and demonstration of the proposed concept using HFEs fabricated for the visible region. This Phase II effort will optimize ALFVIS design, extend the number of filter wavelengths and the spectral range of HFEs to the near IRand filter switching speed to the nanosecond range, and integrate a compact fully functional prototype system.