AO system overview

{gallery /}

Flexible Optical BV supplies complete closed-loop adaptive optical systems for real-time correction of optical aberrations and generation of precision wavefronts. Please see below a short video illustrating the typical performance of our AO system, or click here to download it in DIVX format.
Applications include scientific instrumentation, astronomy, ophthalmology, laser optics and optical alignment systems. Click here for published work based on our mirrors.

We supply closed-loop AO systems based on Micromachined Membrane Deformable Mirrors (MMDM) with up to 79 channels and Piezoelectric Deformable Mirrors (PDM) with 19, 37, 79 and 109 channels. Aberration correction is possible in circular, rectangular, annular, elliptic and annular elliptic apertures. The feedback frame rates of 30 … 1500 fps, depending on the camera and computer used, are sufficient for correction of aberrations caused by the atmospheric turbulence.

Real-time AO phase control is realized by our FrontSurfer Hartmann-Shack WF sensor, offering a wide variety of control options including SVD eigenmode analysis, mode filtering, operations with the background, etc .

We can also supply deformable mirror systems with linear 19 and 38-ch MMDM and 20-ch PDM for ultrafast pulse shaping. These application-specific systems should be controlled by a customer-made feedback sensors and software.

{jumi [*7]}

For our Chinese customers, the video is available here

50 mm PDM with 39 actuators with low-order aberration optimized layout is tested with a wavefront sensor configuration based on UI-1540 camera with a standard microlens array (pitch = 150 µm, focal length = 3.5 mm). {slider=System parameters} 1 Wavefront sensor Wavefront Sensor Parameters Parameter Value Serial Number FS1540-0-P150-F3.5-xxxx Camera model uEye UI-1540SE-M Camera type digital CMOS Camera interface USB 2.0 Array geometry square Array pitch 150 μm Array focal distance

AO systems with MMDM are based on our technology of Micromacined Membrane Deformable Mirrors. These mirrors are inexpensive and fast. They feature zero hysteresis and can work in a frequency range of up to 1kHz. Currently we fabricate 15mm MMDM with 17, 19, and 37 channels, 30mm MMDM with 39, 59, and 79 channels, 40mm MMDM with 59 and 79 channels, and 50mm MMDM with 79 channels. Parameters of these mirrors are naturally matched to the parameters of atmospheric turbulence, therefore they produce best results when used for correction of turbulence.

AO systems with PDM are based on our technology of piezoelectric deformable mirrors (PDM). These mirrors can compensate large optical aberrations in a frequency range up to 1 kHz. Currently we fabricate PDM with 18, 19, 37, 69, 79, and 109 channels with apertures of 30mm and 50mm. Since these mirrors can produce large local responses, they are efficient for the correction of aberrations of the human eye, laser systems, and other demanding applications.