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Phase Estimation in Optical Interferometry
book

Phase Estimation in Optical Interferometry

by Pramod Rastogi, Erwin Hack
November 2014
Intermediate to advanced content levelIntermediate to advanced
366 pages
11h 5m
English
CRC Press
Content preview from Phase Estimation in Optical Interferometry
Uncertainty in Phase Measurements 303
9.4.3 Signal-Dependent Contributions
9.4.3.1 Shot Noise
In a photon detector (charge-coupled device [CCD] and complementary
metal-oxide semiconductor [CMOS] cameras, photon counter), the num-
ber of electrons per exposure varies according to Poisson statistics, even
with constant average irradiance. e variance of the signal caused by shot
noise is proportional to the signal itself [16] when signals are measured in
electrons or counts [cnt]:
=(, [cnt]) [cnt]
2
uSshot S (9.8)
e full well depth of a pixel describes the maximum number of electrons
the pixel can hold, with typical values less than 10
5
. is leads to a shot
noise level greater than 0.3%.
9.4.3.2 Illumination Instability and Camera ...
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Publisher Resources

ISBN: 9781466598317