Volume holographic memory with a speckle-encoded reference beam

Vladimir B. Markov; James E. Millerd; James D. Trolinger

doi:10.1117/12.355008

19 July 1999 Volume holographic memory with a speckle-encoded reference beam

Vladimir B. Markov, James E. Millerd, James D. Trolinger

Proceedings Volume 3749, 18th Congress of the International Commission for Optics; (1999) https://doi.org/10.1117/12.355008
Event: ICO XVIII 18th Congress of the International Commission for Optics, 1999, San Francisco, CA, United States

Abstract

Important advances of holographic memory. such as parallel input-output, high data transfer rate and ultimate density for optics storage have attracted a lot of interest. The principal feature of volume holography (known as very high selectivity of the diffracted beam intensity to reference beam deviation) is typically used for data multiplexing. Thus, most common techniques for data sampling are based on angular' and spectral2 selectivity resulting from the momentum conservation law (Bra law) for volume holograms3. Angular selectivity has been used more often as it is simpler to implement in practice. It was demonstrated4.5 that data multiplexing with up to 10.000 pages of information can be stored in one crystal as write-read/erase or read-fix. Refextnce bean arbitrary phase encoding also was demonstrated as a useful technique for this purpose, although the detailed analysis of the method was limited only by the conditions where the profile modulation across the reference beam was altered by arbitrary encoding. The first demonstration of shift selectivity of thick holograms with a speckle encoded reference beam was reported7, and later a theoretical explanation of the observed peculiarities8 was given suesting this type of selectivity for high density data storage9. A similar approach was suested for volume holograms with a spherical reference wave;10 however the existing methods do not explore the possibility of the effective use of an entire volume of the hologram as suested in the development for optical disc memory systems11. In this report we present the results of volume hologram recording with high density data obtained through a real volumetric encoding method that allows an increase in the data storage density.

Citation Download Citation

Vladimir B. Markov, James E. Millerd, and James D. Trolinger "Volume holographic memory with a speckle-encoded reference beam", Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); https://doi.org/10.1117/12.355008

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
2 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Holograms

Volume holography

Holography

Speckle

Multiplexing

Data storage

Data modeling

Show All Keywords

Keywords/Phrases

Search In:

Publication Years