Our article “Correction of low-order aberrations using continuous deformable mirrors” is published in Optics Express.

Flexible Optical B.V. presents new 19-channel 30-mm deformable mirror optimized for high-quality correction of low-order Zernike terms. Our new 19-channel piezo DM has been specially designed for correction of low-order aberrations. By locating 18 of 19 mirror’s actuators outside the 20-mm aperture, we achieved perfect correction of the first 15 Zernike polynomials practically without any actuator print-through. Please read our article in Optics Express to learn more about the theoretical background.

FrontSurfer software version 1.3.8 is released. It allows operating with manually defined aperture of circular, elliptic, square or rectangular shape and implementing custom optimization from a user-defined DLL. Overview of new features

Flexible Optical BV (aka OKO Technologies) offers an immediate engineering position in the area of adaptive optics. OKO develops, manufactures and delivers integral solutions, based on smart and adaptive optics, for industry, medicine, and astronomy. We offer competitive salary and performance-related bonus. The successful candidate is expected to have MSc or Ph.D. in physics or engineering. We look for special skills in software engineering, mechanical design, electronic development and hands-on experience with integration of opto-electronic systems.

User-friendly closed loop AO systems including deformable mirror, mirror amplifiers, USB computer interface, Hartmann-Shack wavefront sensor with microlens raster, USB camera and FrontSurfer software: based on 37-ch 15-mm Al or gold-coated OKO membrane micromachined deformable mirror, EUR 12000; based on 19-ch 30-mm protected Al or protected silver -coated piezoelectric deformable mirror, EUR 14000; based on 37-ch 30-mm protected Al or protected silver -coated piezoelectric deformable mirror, EUR 19000. Unlike MEMS mirrors that employ hundreds of control channels with extreme redundancy to produce simple low-order Zernike terms, OKO mirrors are optimized to correct for the most frequent aberrations of optical and laser systems using small number of control channels, with negligible scattering and negligible actuator print-through.

Visit our stand no. 124 at Astronomical Instrumentation 2008 Exhibition. The exhibition will take place on 24 - 26 June 2008 in Palais des Congrès Parc Chanot, Marseille, France.

New, third edition of our Product Guide is out! It contains descriptions of our new mirrors and wavefront sensor configuration, technical drawings of the mirror cases, updated section on the mirror performance and extended FAQ section. Download the new version in pdf-format here or contact us for a hard copy.

A free version of our Windows software for modeling of the response of membrane and piezoelectric deformable mirrors is available for download (Warning, the file size is ~150 MB!). MrFit is a program for simulation of membrane and continuous facesheet deformable mirrors (“Mr” means mirror and “Fit” means to fit a specied wavefront). It calculates the voltages to be applied to the actuators to achieve the best possible compensation for a specified wavefront aberration, defined as a combination of Zernike terms.

OKO Technologies announces new 50mm PDM with 37 actuators. The mirror has 37 PZT actuators forming a hexagonal grid with 6.9 mm pitch. Free actuator stroke is approximately 7 µm, the stroke difference between the neighbor actuators reaches 2 µm. The mirror is driven by a 40-ch HV amplifier unit, controlled from a computer USB port via a 40-ch 12-bit USB DAC module. The case of the mirror has the same sizes as that of 109-ch PDM – 100x100x60mm.

Visit our stand no. 514 at Photonics Europe 2008 Exhibition. The exhibition will take place on 8 - 10 April 2008 in Palais de la Musique et des Congrès, Strasbourg, France.