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Fast Steering Mirrors
Home > Products > Scanning Systems > Fast Steering Mirrors
Axsys Technologies has applied extensive heritage designing and building opto-mechanical systems to the development of fast steering mirror technology.  The single-axis and two-axis, flexure mounted, fast steering mirror (FSM) represents a compact, low cost, high performance design solution for a variety of emerging optical scanning and beam stabilization applications.  Such devices may be used to correct for polygon cross scan errors in prepress imaging, acquire and lock beams within free space laser telecom systems, modulate tilt and cavity control in interferometers, maintain beam stabilization in the presence of thermal drift and vibration, and provide general two axis beam scanning.
Single-Axis FSM Typical Characteristics
Type: Single-axis flexture
Mirror: Diamond machined metal with internally machined flexures
Actuator: PZT
Peak tilt: +/-60 arc seconds optical
Scan Frequency: 1600 Hz
Incremental correction frequency: 20 KHz
Clear aperture: 3 mm minimum
Control system: type 1 servo
Two-Axis FSM Typical Characteristics
Type: Two-axis flexture
Mirror: Diamond machined metal with intergral hard fastening
Actuator: Linear vice coil
Peak tilt: +/- 10 degrees optical
Clear aperture: 44 mm
Closed-loop bandwidth: >350 Hz
Control system: type 2 servo
Two-Axis FSM Datasheet
 
 
Single-Axis Fast Steering Mirror mounted in laser conditioning/ focusing objective
 
Two-axis Fast Steering Mirror Assembly
 
   
     
   
X/Y Excursion vs DC Control Voltage
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X/Y Excursion vs DC Control Voltage
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The angular deflection is in proportion to the analog command input voltage, as shown in the above figures, illustrating the angular mirror deflection as a function of control voltage for the y-axis and x-axis, respectively  

DOWNLOAD WHITE PAPER:
Design Considerations for Fast Steering Mirrors (FSM's)
- Presented at the SPIE Annual Meeting, July 2002
 
 
   
 
 
 
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