Open AccessNonlinearity compensation and complex-to-phase conversion of complex incoherent digital holograms for optical reconstruction
Author(s) -
JungPing Liu,
Sheng-Yen Wang,
P.W.M. Tsang,
TingChung Poon
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.014582
Subject(s) - holography , optics , digital holography , spatial light modulator , speckle pattern , phase (matter) , interference (communication) , holographic display , physics , phase modulation , digital holographic microscopy , nonlinear system , spatial frequency , amplitude , computer science , phase noise , telecommunications , channel (broadcasting) , quantum mechanics
Incoherent digital holography (IDH) can be realized by optical scanning holography or self-interference incoherent holography. Although IDH can exhibit high quality reconstruction due to its inherently speckle-free property, direct display of an incoherent hologram is a challenge because of its amplitude nonlinearity and the demand of complex modulation. In this paper we propose to compensate the amplitude nonlinearity at the object plane, and use bidirectional error-diffusion method to convert the complex-type incoherent Fresnel hologram to a phase-only Fresnel hologram for display. A spatial light modulator is used to reconstruct the phase-only hologram optically to demonstrate the validity of our proposed method.