The two principal equations in [Opt. Express 16, 6528–6536 (2008)] which both contain an error are corrected in this erratum.
© 2009 Optical Society of America
We emphasize, that the simulations shown in Figs. 2 and 4 as well as the fits to the data presented in Fig. 3 of Ref.  were performed by using the correct equations. Also the conclusions remain unaltered, in particular Eqs. (6) and (7) in the appendix which give the limits of 1 and 2 for φ=π/2.
We are grateful to Martin Fritzenwanker for drawing our attention to these errors.
References and links
1. M. Fally, M. Ellabban, and I. Drevenšek-Olenik, “Out-of-phase mixed holographic gratings : a quantative analysis,” Opt. Express 16(9), 6528–6536 ( 2008). [CrossRef]