ALPAO high-speed deformable mirror

描述

ALPAO deformable mirrors are based on electromagnetic principles. With large wavefront modulation, high linearity and fast modulation speed, ALPAO deformable mirrors are very suitable for applications such as astronomy, visual science, microscopy, defense and aerospace, FSO communications, laser and physics, and microelectronics. Notable applications include the multi-object adaptive optics (MOAO) project on the 8.2-meter Subaru telescope, the imaging of zebrafish brains in the 2014 Nobel Prize-winning Betzig laboratory, and the 39-meter E-ELT telescope. One of the deformable mirrors for the E-ELT project reached 12000,<> units!

Deformation mirror, also known as deformation mirror (DM), is mainly used in a variety of adaptive optical systems, mainly used to correct wavefront distortion, it is composed of many drive units, each driver unit has its own independent controller, under the applied voltage control, the mirror of the deformation mirror can produce the required deformation variables, thereby modulating the wavefront aberration. The deformation mirror is one of the important components of adaptive optical systems.

ALPAO high-speed deformable mirror features advantages

• Large modulation: wavefront phase modulation amplitude exceeds 80μm
• High stability: +/-1% over 30s, <10nm RMS over hours
• High dynamic range: response time less than 500μs
• High coating quality: R>97% @500nm – 2.0μm
• Surface flatness: surface roughness <15Å RMS
• Sub-nanometer step accuracy
• Low hysteresis: hysteresis error less than 1%
• Single channel phase modulation amplitude > 5.0 μm PTV
• Protective silver (or other highly reflective coatings)
• Working temperature -10~35 °C

ALPAO high-speed deformable mirror model parameters

ALPAO high-speed convertible mirror customizable options:

• Other coatings: gold, aluminum or dielectric films with high damage thresholds
• Larger wavefront modulation: An additional 50% of the wavefront modulation
• Higher wavefront modulation speed: 100% more bandwidth
• Closed-loop surface shape mass of <3nm RMS
• High-speed synchronous triggering with external devices
• More actuators? Up to 64×64 can be used.
• Substantial? Ask our low price OEM DM.
• Faster or larger shapes? Each parameter can be customized.
• Larger clearance aperture? Ask for your DM.
• High stability options? Used for open-loop performances.

Additional large displacement, high speed or high optical quality function options are available

1. High stability option provides better open-loop performance.

2. Other coatings: gold, aluminum or dielectric have obtained a higher laser damage threshold (LIDT)

ALPAO deformable mirrors are based on continuous reflective surfaces driven by magnetic actuators. With large travel, high dynamic motion and excellent optical quality, they meet and exceed your requirements for fast and accurate wavefront correction.

ALPAO Deformable Mirrors are based on magnetic actuators that move continuous reflective surfaces. It features large deformation (up to 90 micron PV or tilt), high dynamic motion (settling time as low as 10 μs at ± 400%), and excellent optical quality (active optimum flat <7nm RMS (<3nm RMS optional)). ALPAO deformable mirrors can be used in astronomy, vision science, microscopy, defense and aerospace, FSO communications, laser and physics, microelectronics and other applications.

The main features of ALPAO high-speed deformable mirrors

1. Large deformation:

With ALPAO deformable mirrors, large aberrations and wavefront shaping can be corrected with high accuracy, including the high-order Zenik mode. This large amount of distortion can be used in adaptive optics, such as skipping separate oblique lenses in astronomy, fast Z-scanning out-of-focus capabilities in microscopic imaging, and correcting large aberrations in ophthalmology.

2. Highly dynamic movement:

ALPAO DM has a settling time as low as 400μs (±10%), an extremely low overshoot, and a greatly reduced adaptive optics time error. Good correction is provided.

3. Excellent linearity and low hysteresis

ALPAO deformable mirrors have very low hysteresis (<2%) and have high linearity (>97%) with excellent stability. Simple control results in very low wavefront errors.

4. Software driver

ALPAO deformable mirrors include software drivers (SDKs) based on Labview, Matlab, C/C++, Python. Hardware and software for Windows XP (32-bit), 7, 8.1, 10 (32/64-bit), Linux (32/64-bit) operating systems.

ALPAO high-speed convertible mirrors are available with additional accessories:

• 1. Rotary table for precise tilt and calibration adjustment.
• 2.Trigger-IN and Trigger-OUT are used to precisely synchronize your system hardware.
• 3 static collimators, using the same housing and mirror positioning. Replace DM when ALPAO DM must be moved to a different optical table. Simplify the installation and maintenance of optical equipment, improve accuracy and reduce adjustment time, or replace ALPAO DM for calibration.
• 4 LEDbox: The 64 LEDs on the LEDBOX represent deformable mirrors (one LED per actuator). This device helps advanced users develop and test their control software prior to optical device installation.

Typical features and advantages of the additional drive electronics for continuous deformation mirrors:

– Average power consumption of several watts

– Thin and flexible cables

ALPAO deformable mirrors (DMs) offer large travel distances, high dynamic motion and excellent optical quality. The DMs produced by ALPAO allow users to perform wavefront correction quickly, which is simple to use and easy to package, and it is convenient for users to use.

Users can use ALPAO DMs to achieve high-precision aberration modulation and shaping of the wavefront, including features such as the high-order Zernike Zenike mode. Large surface shape changes are suitable for the use of adaptive optics. For example, you can skip a separate oblique mirror (astronomical anamorphic mirror), use the large defocus function for fast z-scanning (microscopy) or correct for large eye aberrations (ophthalmology).

The Alpao Deformable Mirrors are high-speed, high-linearity and large-wavefront modulation continuous reflective surface deformation mirrors that use electromagnetic actuators to deform their surfaces. Combined with the adaptive system control algorithm of Alpao’s high-speed continuous reflective surface deformation mirror, it can best meet the application requirements for high-speed and wavefront correction. With the characteristics of large wavefront modulation, aberration modulation, high linearity and real-time wavefront modulation, deformable mirrors (continuous deformable mirrors) can be used in astronomy, visual science, microscopy, defense and aerospace, FSO communications, laser and physics, microelectronics and other applications.

The adjacent animation showcases our unique technology in membranes, coils, magnets and springs. By applying an electric current in the coil, the magnet can move up and down to deform the membrane.

The series of deformation mirrors produced by ALPAO in France is based on the electromagnetic principle. The energized voice coil controls the movement of the magnet connected to the mirror film, which changes the mirror shape. ALPAO has more than 10 years of experience in the field of adaptive optics. Notable applications include the multi-object adaptive optics (MOAO) project on the 8.2-meter Subaru telescope, the imaging of zebrafish brains in the 2014 Nobel Prize-winning Betzig laboratory, and the 39-meter E-ELT telescope. One of the deformable mirrors for the E-ELT project reached 12000,<> units!

Alpao’s high-speed deformation mirrors use electromagnetic drivers to deform the continuous reflective surface of silicon thin films, and are ideal for applications such as astronomy, free-space laser communications, ophthalmology, multiphoton fluorescence microscopy, and microelectronics (next-generation semiconductor devices) with large wavefront modulation, high linearity, and real-time wavefront modulation. At the same time, Alpao has a leading adaptive optical system control algorithm, combined with high-sensitivity, high-speed wavefront sensors based on EMCCD technology to achieve real-time atmospheric turbulence correction

Alpao, a separate company from the Josef Fourier University of Grenoble, France, is dedicated to the development of high-speed, high-linearity and large-wavefront modulation continuous reflector deformation mirrors using electromagnetic actuators for applications such as astronomy, free-space laser communications, ophthalmology, multiphoton fluorescence microscopy and next-generation high-end semiconductor equipment, in collaboration with the European Southern Observatory (ES0), the Howard Hughes Medical Institute (HHMI, Betzig) and the University of Rochester in astronomy, multiphoton fluorescence microscopy and ophthalmic applications have achieved exceptionally fruitful research results.

ALPAO DMs high-speed deformation mirrors are based on continuous reflective surfaces moved by magnetic actuators. The settling time of ALPAO DMs is as low as 400 μs (±10%) and the overshoot is extremely low. As a result, deformable mirrors provide excellent correction, as adaptive optics time errors are greatly reduced. At the same time, ALPAO DMs deformable mirrors have virtually no hysteresis (<2%), as well as high linearity (>97%) and excellent stability. Direct control of ALPAO DMs high-speed deformation mirrors provides very low residual wavefront errors.

ALPAO high-speed continuous reflector deformation mirrors can be used by software drivers (SDKs) such as Labview®, Matlab®, C/C++, and hardware and software are compliant with Microsoft Windows® XP (32-bit), 7, 8.1, 1 0 (32/64-bit), and many Linux® (32/64-bit) operating systems.