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Adaptive Optics Whitepapers Adaptive Optics Whitepapers

The Mini-DM: An economical solution for wavefront correction

The compact and affordable Mini-DM is ideal for laboratory-scale adaptive optics and proof of concept wavefront control. Its mirror surface is controlled by 32 electrostatic actuators which are individually commanded to achieve a desired shape. The DM is available in both continuous and segmented surfaces for adaptive optics or spatial light modulator applications. The DMs are capable of up to 5.5 μm stroke, 20 kHz frame rate *, have sub-nm step size, and zero hysteresis.

* 1.5 μm DM and SLM capable of 20 kHz.

Mini-DM

 
Mini mirror closeup

Mirror Close-up

 
Product PDF
Quick Quote

Adaptive Optics

Advanced wavefront control with MEMS deformable mirrors produce higher contrast, higher resolution imaging. Wavefront shaping is achieved by correcting high-order aberrations caused by optical limitations, atmospheric turbulence, and tissue nonuniformities. BMC's MEMS deformable mirrors offer unsurpassed correction and control, dramatically improving imaging precision.

  Mini-DM Schematic

DM Selection Chart

Mini- 1.5 Mini- 3.5 Mini- 5.5 Mini-SLM

Stroke 1.5 µm 3.5 µm 5.5 µm 1.5 µm

Aperture 1.5 mm 2.0 mm 2.25 mm 1.8 mm

Pitch 300 µm 400 µm 450 µm 300 µm

Mechanical Response (10%-90%) <20 μs <100 μs <500 μs <40 μs

Approx. Interactuator Coupling 15% 13% 22% 0%

 

DM Specifications

  • 32 actuators (6×6 array without 4 corners)*
  • Coating: Aluminum, Gold or protected silver
  • Protective window with 350-700 nm, 400-1100 nm, 650-1050 nm or 1050-1620 nm AR†
  • Zero hystereses
  • Sub-nm average step size
  • Fill Factor >99% (DM), 98% (SLM)
  • Surface Finish: <30 nm RMS

* Custom actuator counts available upon request
Custom AR coatings available upon request

   

Driver Specification

  • Completely Powered & Controlled by USB 2.0 Interface
  • 14 bit step resolution
  • Maximum Frame Rate: 8 kHz with 34 kHz burst
  • Dimensions: 4" × 5.25" × 1.2"

High speed drive electronics available
Click here for more information

Software Specifications

  • Windows XP/7, Linux OS Compatible
  • Basic Operation software included
  • C/C++, Matlab and Labview drivers included
  • Linux drivers available
  • Labview Beta Software available
   
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