The C-RED fast infrared camera family for wavefront sensing

We present here the latest results obtained with the CRED One camera. This camera uses the Leonardo (previously Selex) Saphira e-APD 320x256 infrared sensor in an autonomous cryogenic environment using a low vibration pulse tube and with embedded readout system. We will present tradeoffs with using the camera in a real environment. Whereas many authors give the raw sensor performance, we will account for background issues, filtering and thermal photons rejection all the noise sources of the camera. Commercially available, sub-e noise is routinely achieved with this system at frame rates as high as 3500 fps. Also commercially available, we present in addition the CRED 2 camera, based on a fast and low noise InGaAs sensor and see the advantages of such a technology for medium-end wavefront sensing applications (tip-tilt correction and low order infrared wavefront sensing). Sensitive from 0.9 to 1.6 microns, the camera provides 600 FPS 640x512 full frame images with total noise of 30 e. The both cameras are designed to be easily operated on a telescope with demanding environment. Liquid nitrogen and vacuum pump free, they do not need complex cryogenic operation without any compromise on the detector performances.