ILAO Star I Mechanical deformable mirror for ultra high intensity laser
Optical Quality and Dynamic Range
Enabling Strehl Ratio > 0.9
Number of actuators
19 to 52
Hysteresis
(Less than 0.5%) / No backlash compensation needed
Beam Diameter Correction
From 16-170mm and more / AOI 10< to 45
Maintenance
Simplified procedures for actuator or substrate replacement
ILAO STAR – High power deformable mirror
ILAO STAR is the first mechanical deformable mirror that was developed for applications in Ultra High Intensity Lasers. Based on a patented actuation technology, ILAO operates using mechanical actuators with astatic floating heads that perform wavefront shaping with nanometric precision, extremely high repeatability and perfect linearity.
It is compatible with WaveTune software and every HASO wavefront sensors.
This high power deformable mirror provides extremely low residual errors on its full dynamic range and allows performing correction without high spatial frequency phase modulations to prevent damages on downstream optics. It is compatible with most available metallic and dielectric coatings and can be customized to match with integration at 45 degree and square beams.


Key specifications
– Optical quality enabling Strehl Ratio > 0,9
– Closed-loop processing frequency ≥ 10Hz
– Very low hysteresis (less than 0.5%)
– Very high correction capability
– No backlash compensation needed
– Completely customized to laser’s parameters
– Easy maintenance for actuator or substrate replacement
– Any angle of incidence ≤ 45°
Key features
– Mirror shape maintained even without electrical power
– Excellent optical quality with active flat better than 10 nm rms and minimal print-through effect
– Perfectly adapted to a beam diameters ranging from 20 to 500 mm
– Dielectric, metallic, or hybrid coating available
– Compatible with WaveTune software and every HASO wavefront sensors
– Optional SDK in C, Python, Labview
Moreover, its integration in the Laser before or after the compressor allows providing a corrected wavefront before the beam transportation. For the correction of the beam transportation, Imagine Optic has developed PHARAO, a software using the focal spot itself to determine the non-common path aberrations and perform ultimate correction for diffraction limited focusing on target.
The amount of energy, beam diameters and safety standards have largely increased to meet new scientific challenges in inertial confinement fusion, plasma acceleration and particle physics experiments. The level of performance and maintenance features offered by ILAO STAR deformable mirror perfectly meets the highest requirements of actual laser installations.
Visit the manufacturer’s website here.
For more deformable mirrors, visit our deformable mirror page here.
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| Model | Numbers of actuators | Beam size Ø | Dynamic range |
|---|---|---|---|
| ILAO STAR 50 | 19 | 16-25 mm | >20µm |
| ILAO STAR 100 | 19 | 25-55 mm | >20µm |
| ILAO STAR 150 | 37 | 50-80 mm | >50µm |
| ILAO STAR 200 | 37-52 | 80-120 mm | >50µm |
| ILAO STAR 250 | 52 | 120-170 mm | >50µm |
| OPTICAL SPECS | |
|---|---|
| Surface quality (actively flattened) | 10 nm RMS |
| Coating | dielectric, metallic, or hybrid |
| Linearity | > 95 % |
| Hysteresis | < 0.1 % |
| OPERATING SPECS | |
|---|---|
| Number of actuators | 19 to 52 for standard, custom available |
| Frequency | 10 Hz for 3 µm PtV (closed loop) |
| Temporal stability | 10 nm RMS over 13h |
Specifications
- Correction of beam diameter up to 250 mm
- Adaptable for integration at 45 degrees
- Dielectric or metallic coatings available
- Replaceable reflective surface
- Perfectly stable correction when the mirror is switched off
- High optical quality and no print through (<10 nm) for typical laser correction
- 99% linearity, no hysteresis and excellent stability over time
Applications – deformable mirror for Ultra High Intensity Laser
As a High power deformable mirror, ILAO STAR can be used to:
– Correcting aberrations in full-power mode
– Focal spot correction
– Wavefront precompensation
– Particle acceleration
– High harmonic generation
Circular or Elliptical aperture for 45 degree incidence
Coatings (metal or dielectric, coating manufacturer can decided by end-user)
Vacuum compatibility.
Spare membranes
Cables

