Optical: systems and elements – Holographic system or element – Using modulated or plural reference beams
Reexamination Certificate
2007-11-13
2007-11-13
Lavarias, A. C. (Department: 2872)
Optical: systems and elements
Holographic system or element
Using modulated or plural reference beams
C359S010000, C359S035000
Reexamination Certificate
active
10059242
ABSTRACT:
An apodization system for achieving a substantially uniform intensity profile of a modulated reference beam on a holographic recording medium. The substantially uniform intensity profile serves to improve the quality of any and all recorded holograms. In high-density holographic storage, the apodization system reduces the required hologram extent while still, maintaining any fidelity constraints (power budget, imaging tolerances, error-rate, noise floor). Furthermore, in high-fidelity holographic storage, better control of the hologram recording parameters can be established. The improved control allows tighter specifications on the image quality to be achieved.
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InPhase Technologies Inc.
Lavarias A. C.
Morrison & Foerster / LLP
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