Deformable Mirror 3K-1.5
Description
The +K-DM Family of deformable mirrors: High spatial-resolution wavefront correctors for next generation applications in astronomy and laser communications. Boston Micromachines Corporation is leading the industry in high actuator‐count MEMS deformable mirror technology. These mirrors are fielded at prominent astronomical facilities around the world to improve wavefront correction capabilities, enabling cutting edge science. The 4K‐DM deformable mirror is currently installed on the Gemini Planet Imager instrument and our 3K-DM is included in the design for multiple space telescope concepts. Finally, the 2K‐DM is currently installed as an enabling component in the Subaru Coronagraph Extreme Adaptive Optics (SCExAO) Instrument and has been on‐sky multiple times.
Deformable Mirror 3K-1.5
Specifications |
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|---|---|
| Number Of Actuators: | 3063 |
| Wavefront Tip-Tilt Stroke (PtV): | 1.5 um |
| Actuator Pitch: | 300 um |
| Pupil Size (Clear Aperture): | 18.6 mm |
| Surface Quality (RMS): | 30 nm |
| Mechanical Response (10%-90%): | 20 us |
| Reflective Coating Material: | Gold, Aluminum, Protected Silver |
| Approximate Interactuator Coupling: | 15% +/- 5% |
| Dimensions: | 5.25” x 19’ x 14’ (3U Chassis) |
| Frame Rate: | 20 kHz |
| Driver IO Interface: | SFP fiber link 2.5 Gbps |
| Driver Step Resolution: | 14 bit |
Features
MEMS deformable mirrors are the most commonly used architecture in many AO applications given their versatility, maturity of technology, and the high resolution wavefront correction capabilities with sub-nm step size. Using advanced, inexpensive manufacturing technology, MEMS DMs’ performance strengths are inherent to micromachining:
1. Large arrays create high resolution wavefront correction.
2. Advanced microstructures allow minimal influence between adjacent actuators for high spatial frequency surfaces
3. Optimized design enables rapid wavefront shaping for high speed applications.
Applications
The +K-DM Family deformable mirrors: High spatial-resolution wavefront correctors for next generation applications in astronomy and laser communications.
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United States
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On FindLight:
since 2017
Frequently Asked Questions
The +K-DM Family of deformable mirrors are high spatial-resolution wavefront correctors for next generation applications in astronomy and laser communications.
MEMS deformable mirrors have large arrays that create high resolution wavefront correction, advanced microstructures that allow minimal influence between adjacent actuators for high spatial frequency surfaces, and an optimized design that enables rapid wavefront shaping for high speed applications.
The driver specifications for the +K-DM Family of deformable mirrors include a DIO interface with SFP fiber link (2.5 Gbps), 14 bit step resolution, and a frame rate of 20 kHz. The dimensions are 5.25” x 19’ x 14’ (3U Chassis).
The 2K-DM deformable mirror has a continuous or segmented surface, 2048 actuators, 50 actuators across the aperture, an active aperture of 20mm, and 1.5μm or 3.5μm stroke available. The approximate mechanical response time (10%-90%) is less than 75μs and the approximate interactuator coupling (±5%) is 15%.
The 4K-DM deformable mirror has a continuous surface, 4092 actuators, 64 actuators across the aperture, an active aperture of 25mm, a 3.5μm stroke, an approximate mechanical response time (10%-90%) of less than 100 μs, and an approximate interactuator coupling (±5%) of 13%.