Shift-phase code multiplexing technique for holographic memories and optical interconnection

Satoshi Honma; Shinzo Muto; Atsushi Okamoto

doi:10.1117/12.758030

4 January 2008 Shift-phase code multiplexing technique for holographic memories and optical interconnection

Satoshi Honma, Shinzo Muto, Atsushi Okamoto

Proceedings Volume 6832, Holography and Diffractive Optics III; 68322P (2008) https://doi.org/10.1117/12.758030
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Holographic technologies for optical memories and interconnection devices have been studied actively because of high storage capacity, many wiring patterns and high transmission rate. Among multiplexing techniques such as angular, phase code and wavelength-multiplexing, speckle multiplexing technique have gotten attention due to the simple optical setup having an adjustable random phase filter in only one direction. To keep simple construction and to suppress crosstalk among adjacent page data or wiring patterns for efficient holographic memories and interconnection, we have to consider about optimum randomness of the phase filter. The high randomness causes expanding an illumination area of reference beam on holographic media. On the other hands, the small randomness causes the crosstalk between adjacent hologram data. We have proposed the method of holographic multiplexing, shift-phase code multiplexing with a two-dimensional orthogonal matrix phase filter. A lot of orthogonal phase codes can be produced by shifting the phase filter in one direction. It is able to read and record the individual holograms with low crosstalk. We give the basic experimental result on holographic data multiplexing and consider the phase pattern of the filter to suppress the crosstalk between adjacent holograms sufficiently.

Citation Download Citation

Satoshi Honma, Shinzo Muto, and Atsushi Okamoto "Shift-phase code multiplexing technique for holographic memories and optical interconnection", Proc. SPIE 6832, Holography and Diffractive Optics III, 68322P (4 January 2008); https://doi.org/10.1117/12.758030

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available