Multi-DM™ User Manual Section 10 - Reference Information
BMC Document Number: DOC-0009 Rev. 5.2 Page 46
Glossary (continued)
Profile
A configuration file that is matched to a unique DM and Driver combination. A Profile contain
information such as DM array size, actuator mapping (by referencing an external Actuator Map
file,) voltage limits, the driver PC interface type, and other settings. Profile file names contain
the serial number of the DM device to which they apply. Profile files have the file name
extension .dm and are stored in the Program Files\Boston Micromachines\Profiles folder.
As installed, the Profiles directory contains generic profiles for demonstration purposes.
These generic profiles contain correct actuator mapping and limit driver output to 150 volts
to protect mirrors from overvoltage conditions.
Segmented DM
A Deformable Mirror where the reflective mirror surface is segmented and the number
of mirror segments is equal to or less than the number of actuators in the entire actuator array.
In Segmented DMs, actuator arrays can be linear, square grid, or other type of pattern.
Coupling between the mirror surfaces of adjacent segments is zero.
Mirror segments in Segmented DMs can be controlled by one or more actuators.
• With one actuator per mirror segment, the segment can move in a single direction.
• With two actuators per mirror segment, the segment can move in a single direction
and tilt in one plane.
• With three actuators per mirror segment, the segment can move in a single direction
and tilt in any plane.
Shape
The physical configuration of the deformable mirror. The DM's shape is controlled by the
deflections contained in a Command Map sent to the DM actuators in the sequence specified
in the Actuator Map.
System Latency
A measure of the overall performance of the DM and Driver system. System Latency is
comprised of Data Latency, Amplifier Slew Time, and the DM Mechanical Response.
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