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  • Adaptive Optics Kits
Feb 2010
Thorlabs Inc.Request Info
NEWTON, N.J., Feb. 23, 2010 – Thorlabs has expanded its line of adaptive optics (AO) kits to include the AOK2 series of mini kits. The Mini AO kits are the result of a partnership between Thorlabs and Boston Micromachines Corp. (BMC). Designed to be integrated within research systems in hours rather than months, they enable real-time, high-precision wavefront measurement and correction.

Each Mini AO kit includes a choice of a gold- or aluminum-coated 32-actuator microelectromechanical systems (MEMS)-based mini deformable mirror manufactured by BMC, Thorlabs’ Shack-Hartmann wavefront sensor with a high-resolution USB 2.0 CCD camera and a high-quality microlens array, all imaging optics and associated mounting hardware, fully functional stand-alone control software for immediate control of the system, and a low-level support library to assist with tailored applications authored by the end user. When combined, these components are designed for use in the 600- to 1100-nm range (gold-coated) and the 400- to 1100-nm range (aluminum-coated), and they provide a closed-loop frame rate of 8 Hz when in correction mode.

The control software minimizes wavefront aberrations by analyzing the signals from the Shack-Hartmann wavefront sensor and using those signals to determine the appropriate drive signals to send to the deformable mirror actuators so that the mirror can compensate for the wavefront aberrations. It allows the user to monitor the wavefront corrections and intensity distribution in real time. User-defined aberrations can be introduced via the software, and wavefront deviations can be compared to this new reference.

The mini deformable mirror included with these AO kits consists of a mirror membrane that is deformed by 32 electrostatic actuators (a 6 × 6 actuator array), each of which offers 3.5 µm of stroke and can be individually controlled. Unlike piezoelectric mirrors, the electrostatic actuators used with BMC’s mirrors ensure deformation without hysteresis.


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