1 July 1992 Digitally calculated optical processing elements (Proceedings Only)
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Proceedings Volume 1702, Hybrid Image and Signal Processing III; (1992); doi: 10.1117/12.60563
Event: Aerospace Sensing, 1992, Orlando, FL, United States
Abstract
We report on two new computer generated hologram (CGH) elements for optical processing. They are a one-to-many optical interconnection element (that allows analog weights, high efficiency, and is not restricted to a regularly spaced grid) and an element to provide separate 1-D collimation of the laser diodes in an array (with high efficiency). Error diffusion encoding and multilevel phase CGHs are used to achieve high accuracy and high efficiency. Simulations are used to show the advantage of error diffusion (ED) encoding. Optical laboratory data are included to show the feasibility of the elements and the validity of our simulator.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David P. Casasent, Daming Yu, Paul Woodford, "Digitally calculated optical processing elements (Proceedings Only)", Proc. SPIE 1702, Hybrid Image and Signal Processing III, (1 July 1992); doi: 10.1117/12.60563; https://doi.org/10.1117/12.60563
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KEYWORDS
Computer generated holography

Optical components

Semiconductor lasers

Computer programming

Collimation

Diffusion

Image processing

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