Thin Fast Steering Mirror (TFSM)
Small Business Information
Applied Technology Associates
1300 Britt SE, Albuquerque, NM, 87123
AbstractThe Navy is developing LADAR sensors for responsive Intelligence, Surveillance and Reconnaissance use where ranges to targets exceed 10km. If such a LADAR sensor is to image a target area by scanning one or several laser beams at such long ranges, high-pointing-accuracy or knowledge, over a wide operational temperature range, is required to obtain a high-quality LADAR image. A two-axis Fast Steering Mirror (FSM) is typically utilized to steer laser beams in a LADAR system. Existing FSM designs that can achieve high pointing accuracy and are small enough for use aboard a tactical unmanned air vehicle often require significant settling times to achieve the pointing accuracy. Also, the knowledge of the location of the FSM (angularly) is not well-known throughout the mirror motion. When used to steer a pulsed laser beam with pulse repetition frequencies on the order of kilohertz, it is necessary to have accurate knowledge of the mirror position whenever a laser pulse occurs. ATA is proposing a concept for a thin FSM which can meet stringent performance requirements over a temperature range of-40 degrees C to +75 degrees C. This requires temperature control of the sensor electronics and uses an innovative actuator concept.
* information listed above is at the time of submission.