OCAM²K-WFS is a high speed low noise Shack-Hartmann Wavefront Sensor able to run at 2067 fps with sub-electron readout noise. To achieve this performance, OCAM²K-WFS uses the E2V Technologies CCD 220 EMCCD, which is an 8 outputs split frame transfer CCD.
To minimize smearing, the CCD220 high speed metal buttressed clock lines are driven by OCAM²K-WFS at a speed as high as 7 Mlines/s transfering each frame in the store section in only 12 microseconds.
The Wavefront Sensor is provided in standard with 40×40 or 20×20 Micro-lenses array (fused silica, AR coating). Specific μLenses array can be fitted. Custom is available upon request. Contact us for more details.
OCAM2-WFS offers an extremely low latency: 43μs between exposure and first pixel availability
> 20×20 or 40×40 Subapertures Wavefront Sensor
> 240×240 pixels state of the art EMCCD
> Wide 24 μm pixels
> Sub-electron readout noise*
> Up to 2067 FPS Full Frame
> Available at 2000 fps
> 95% peak QE typical (Deep Depletion Silicon option)
> 14 bits precision A/D converter
> Cooled operation for low dark current
> Integrated cooling temperature controller
> Fully sealed resistant aluminum body with low thermal gradient
> Ultra-low latency CameraLinkTM Full interface: 43µs
> Clock & trigger input / output for synchronous operation
> Custom design and Read Out modes available upon request
* with EMCCD Gain