Dark current free speckle measurement

PTC (photon transfer curve)

Noise performance indicator of CCD camera

James Janesick, Photon Transfer, Chap-5

3N to 4N linearity. Gradient corresponds to speckle contrast in this particular case.

Ibar was varied with exposure time of 0.5s to 20s DN: digital number representing gray scale

Oxide Corporation

Speckle contrast Measurement System