Analysis of amplitude and phase coupling in volume holography

A. Márquez; C. Neipp; L. P. Yaroslavsky; S. Gallego; M. Ortuño; A. Beléndez; I. Pascual

doi:10.1117/12.677159

9 June 2006 Analysis of amplitude and phase coupling in volume holography

A. Márquez, C. Neipp, L. P. Yaroslavsky, S. Gallego, M. Ortuño, A. Beléndez, I. Pascual

Proceedings Volume 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information; 62521H (2006) https://doi.org/10.1117/12.677159
Event: Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 2005, Varna, Bulgaria

Abstract

In this work we analyse the complex amplitude response of volume holograms. This analysis suggests a new scheme for encoding complex amplitude wavefront information onto an optical hologram which may prove useful for combining computer-generated holograms (CGH) onto volume holograms. Specifically, we analyse the amplitude and phase modulation associated with a volume phase unslanted transmission grating. Using the expressions given by the Kogelnik's coupled wave theory (KCWT) we find that there is a coupling between the amplitude and the phase modulations. This coupling can be controlled to some extent by means of the reconstruction angle: we have found that the significant magnitude is the normalized Bragg detune angle. A large variation range of the grating strength is desirable, which is enhanced by the use of shorter wavelengths, and materials exhibiting overmodulation capability and/or with a high thickness.

Citation Download Citation

A. Márquez, C. Neipp, L. P. Yaroslavsky, S. Gallego, M. Ortuño, A. Beléndez, and I. Pascual "Analysis of amplitude and phase coupling in volume holography", Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 62521H (9 June 2006); https://doi.org/10.1117/12.677159

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KEYWORDS

Modulation

Phase shift keying

Holograms

Volume holography

Computer generated holography

Phase modulation

Holography

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