We have compared the respective efficiencies of off-axis and phase-shifting holography in terms of noise and aliases removal. The comparison is made by analyzing holograms of a USAF target backlit with laser illumination, recorded with a charge-coupled device camera. We show that it is essential to remove the local oscillator beam noise, especially at low illumination levels.
© 2008 Optical Society of America
Original Manuscript: June 21, 2007
Revised Manuscript: October 5, 2007
Manuscript Accepted: October 23, 2007
Published: April 4, 2008
M. Gross, M. Atlan, and E. Absil, "Noise and aliases in off-axis and phase-shifting holography," Appl. Opt. 47, 1757-1766 (2008)