Fast Steering Mirror Products (FSM Series) provides two-axis, high-bandwidth rotation with sub-microradian resolution using voice-coil technology. Newport offers standard designs that are economically viable for widespread commercial use for applications such as laser beam stabilization, laser pointing, tracking, and image stabilization.
By utilizing a unique flexure suspension design to confine the motion of the mirror, it eliminates the bearing surfaces often used with galvanometer scanners, along with their associated stiction and wear. This results in ultra-smooth motion about the two axes intersecting at a common pivot point, very high accuracy, and practically infinite lifetime.
Newport offers a standard FSM-300 with a 1” (25.4mm) diameter mirror. A position transducer is included in the FSM mirror head to provide position feedback with reference to the support frame. A wide range of 1” mirror assemblies (mirror on carrier) for the FSM-300 Fast Steering Mirrors are offered. This allows the user to field replace the standard mirror with another mirror that best fits the specific application. The 1" mirror assemblies are sold separately.
For laser beam stabilization application, we recommend the OBP Series position sensing devices (see Laser Beam Positioner ).

Fast Steering Mirror Products (FSM Series) provides two-axis, high-bandwidth rotation with sub-microradian resolution using voice-coil technology. Newport offers standard designs that are economically viable for widespread commercial use for applications such as laser beam stabilization, laser pointing, tracking, and image stabilization.
By utilizing a unique flexure suspension design to confine the motion of the mirror, it eliminates the bearing surfaces often used with galvanometer scanners, along with their associated stiction and wear. This results in ultra-smooth motion about the two axes intersecting at a common pivot point, very high accuracy, and practically infinite lifetime.
Newport offers a standard FSM-300 with a 1” (25.4mm) diameter mirror. A position transducer is included in the FSM mirror head to provide position feedback with reference to the support frame. A wide range of 1” mirror assemblies (mirror on carrier) for the FSM-300 Fast Steering Mirrors are offered. This allows the user to field replace the standard mirror with another mirror that best fits the specific application. The 1" mirror assemblies are sold separately.
For laser beam stabilization application, we recommend the OBP Series position sensing devices (see Laser Beam Positioner ).