Flexible Optical B.V. (OKO Technologies)

1. Direct control of Zernike modes using piezo and membrane DM
(Technical documents/Technical articles)

Direct control of Zernike modes is beneficial in feedforward control algorithms, and in optimization-based adaptive optics,  such as laser intracavity AO,   adaptive image sharpness control, ...

2. MiZer: direct control of Zernike modes
(Products/Software)

Software application to directly control OKO deformable mirrors with Zernike polynomials. The free cross-platform software is implemented as a  C/C++ library. A simple GUI application for manual ...

3. Adaptive Optics Breadboard
(Technical documents/Technical articles)

... sensors and control software. The complete AO system is built on a 45x30 cm breadboard and includes point source, aberration simulator (optional), deformable mirror and Shack-Hartmann WF sensor.  ...

4. Adaptive Optics without trouble
(Technical documents/Technical articles)

... simpler, cheaper and easier to set up and more robust to control adaptive optical system. The goal of high performance and low complexity in one package can be reached by tuning the parameters of the adaptive ...

5. 40-ch 16-bit Ethernet DAC
(Products/Electronics)

... Full signal span is up to 12 V, maximum and minimum values could be adjusted in the range from -12 V to +12 V. Multiple devices may be combined within network to control practically unlimited ...

6. Does your AO system come with a software development kit?
(FAQs/Adaptive optical systems)

There are at least two possibilities to create your own control software: use of a simple SDK supplied with the PCI or USB DAC interface, which consists of a number of sample programs written in ...

7. 15 mm 37-ch "OKO Mirror"
(Products/MMDM)

... laser beam control, real time atmospheric correction, ophthalmology, intracavity laser control, communications, holographic memory, optical fiber switching, etc. Properties of these mirrors are described ...

8. PCI DAC boards
(Products/Electronics)

OKO digital PCI boards provide 8-bit voltage control for 24 output channels. The output voltage range can be trimmed continuously in the range 2.5 ... 10V for all channels. Setting time per channel is ...

9. USB control unit
(Products/Electronics)

Digital-to-analog converter unit "DAC-40-USB" provides 12-bit voltage control for 40 output channels. The output voltage range can be trimmed continuously in the range 2.5 ... 5 V for all channels. Several ...

10. New 50mm PDM with 37 channels
(News/2008)

... 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 ...

11. Typical passports
(Products/Technology)

... control system  ...

12. Electronics
(Products/Electronics)

... of interfaces and amplifiers that allow to control high-voltage deformable mirrors with up to 2 kHz frequency, voltage up to 400V with a precision of 8 (PCI), 12 (USB), or 16 (Ethernet) bits. OKO PCI ...

13. What is the closed-loop correction speed in FrontSurfer?
(FAQs/Adaptive optical systems)

The correction speed is mainly limited by the camera's frame rate.  However, it is also dependent on other factors, including the speed of the deformable mirror and its controller, number of spots in the ...

14. Which deformable mirror can be used with FrontSurfer?
(FAQs/Adaptive optical systems)

FrontSurfer have embedded support of OKO’s deformable mirror controllers, including 24-channel ISA and PCI boards and 40-channel USB driver modules. With these features, FrontSurfer can control any mirror ...

15. What is included in a typical FrontSurfer adaptive optics package?
(FAQs/Adaptive optical systems)

FrontSurfer adaptive optics package includes a deformable mirror with a full set of control electronics and the FrontSurfer wavefront sensor package including FrontSurfer software with adaptive optics ...

16. Introduction to the FrontSurfer
(Products/Wavefront sensors)

The wavefront analysis and control system  FrontSurfer is the most inexpensive Hartmann-Shack sensor on the market. Nevertheless, the system is very universal and can be used for: Optical shop ...

17. What is FrontSurfer?
(FAQs/Wavefront sensors)

FrontSurfer is a wavefront analysis and control system based on Shack- Hartmann wavefront sensors and deformable mirrors from OKO Technologies.  ...

18. Linear deformable mirrors
(Products/Wavefront correctors)

OKO Tech produces membrane and piezoelectric DM for ultrafast pulse control. These mirrors are usually used in a stretcher for selective control of the delays of chosen spectral components. Linear PDM ...

19. How linear is the MMDM response?
(FAQs/MMDMs)

The displacement of the mirror surface is proportional to the SQUARE of the applied voltage. The mirror response can be linearized using the operation of square root. For 8-bit biased digital control the ...

20. How to bias the MMDM?
(FAQs/MMDMs)

... position. In the case of digital control (one byte 0 to 255 per channel) all electrodes should be set to 180. These values should be adjusted to obtain a perfect spherical figure. ...