Aviation Laser Strike Alert

To address the Navy’s need for a modernized laser event recorder, Intellisense Systems, Inc. proposes to develop a new Aviation LAser StriKe Alert (ALASKA) system based on a novel design fusing multiple sensors. Specifically, the innovation in utilizing a circular diffraction mask coupled with imaging sensors allows the system to simultaneously act as a spectrometer, detect angle of incidence, and record video of the event. When paired with a sensor fusion algorithm for false positive mitigation, this simple solution enables the instrument to detect laser strikes from the cockpit, while minimizing its size and power requirements. The combination of both silicon and indium gallium arsenide imaging sensors provides full wavelength coverage from the deep ultraviolet to the near-infrared. Position sensors and fast photodiodes allow for laser strike localization and determination of the pulse length, repetition frequency, and duration of a laser strike. Fisheye objectives and tilted optical mounts are used to maximize the field of view. A night vision compatible display will warn the aircrew of a laser attack. Along with video from the scene, laser strike parameters are saved to a SD card. The sensor data fusion algorithm helps minimize both the false positives and the number of required sensors. ALASKA is a stand-alone, battery operated device. In Phase I, Intellisense will design and develop a concept for the device. Intellisense will demonstrate the feasibility of ALASKA by testing the device’s response to laser irradiation. The Phase I final report will include detailed prototype plans to be developed under Phase II. In Phase II, Intellisense plans to continue development of the concept proposed in Phase I and to design and demonstrate a prototype device to address all parameters. We will include a design for either aircraft or aircrew mounting, and perform preliminary testing for ruggedness.