Suppression of Zeroth-Order Diffraction in Phase-Only Spatial Light Modulator via Destructive Interference with a Correction Beam

Wynn Dunn Gil D. Improso, Giovanni A. Tapang, Caesar A. Saloma

2017

Abstract

We suppress the unwanted zeroth order diffraction (ZOD) contributed by the dead areas of a spatial light modulator with a correction beam that is independently created from the desired target. We use the Gerchberg- Saxton algorithm to generate the phase of the correction beam profile that would match correctly with that of the ZOD. The correction beam intensity is regulated using a coefficient to match also with that of the ZOD. Numerical simulation reveals a ZOD suppression that is as high as -99% but only -32% has been achieved so far experimentally.

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Paper Citation


in Harvard Style

Improso W., Tapang G. and Saloma C. (2017). Suppression of Zeroth-Order Diffraction in Phase-Only Spatial Light Modulator via Destructive Interference with a Correction Beam . In Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-223-3, pages 208-214. DOI: 10.5220/0006129802080214

in Bibtex Style

@conference{photoptics17,
author={Wynn Dunn Gil D. Improso and Giovanni A. Tapang and Caesar A. Saloma},
title={Suppression of Zeroth-Order Diffraction in Phase-Only Spatial Light Modulator via Destructive Interference with a Correction Beam},
booktitle={Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2017},
pages={208-214},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006129802080214},
isbn={978-989-758-223-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Suppression of Zeroth-Order Diffraction in Phase-Only Spatial Light Modulator via Destructive Interference with a Correction Beam
SN - 978-989-758-223-3
AU - Improso W.
AU - Tapang G.
AU - Saloma C.
PY - 2017
SP - 208
EP - 214
DO - 10.5220/0006129802080214