General Dynamics’ Fast Steering Mirror (FSM) combines our mechanical, optical, and electronics expertise to deliver a flexure-mounted system offering a compact, low-cost, high-performance solution for single and multi-axis optical scanning and beam stabilization applications.

  • Open and closed loop operation
  • Modular design
  • Digital/analog user interface

Product Details

The design of the Fast Steering Mirror (FSM) incorporates a mirror mounted to a flexure support system that may be tilted to direct a laser beam or other light source. A set of actuators, including voice coils or piezoelectric devices, are used to provide the directional motion. The system offers both open-loop and closedloop operation. For closed-loop operation, integrated high-speed precision sensors are used to provide a complete feedback control system. With its modular design, the FSM allows increased flexibility in mirror substrate choice, aperture size, degrees of tilt and control electronics to meet any mission requirements.

You may contact our customer service center by phone.

Phone: 248-293-2900

General Dynamics Global Imaging Technologies
2909 Waterview Drive
Rochester Hills, MI 48309

Our fundamental mission is to ensure the continued precision performance of your cameras in the field.

Our products and solutions play mission critical roles in some of the harshest environments across all domains. Customers depend on these maintenance services for their rugged reliability and performance in the field.

Our Customer Service operation works closely with users to maximize the, performance, reliability and up time of our mission critical imaging systems. We have established long term relationships with defense, homeland, commercial and international communities for logistics, support and depot.


Fast Steering Mirror Datasheet



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Aperture Size ≥ 25 mm
Mirror Substrate Aluminum, Beryllium, SiC, glass
Optical Coating UV to IR coatings available
Angular Tilt Up to ±20° optical (±10° mechanical)
Resolution 10 μ-radian
Small Signal Bandwidth > 350 Hz
Accuracy 50 μ-radian
Controller DSP-based digital servo
Digital/analog user interface
Advanced algorithms for high bandwidth
Integrated position sensor
PC-based diagnostics and signal monitoring