Photorefractive volume holographic memory systems: approaches, limitations, and requirements

Scott Patrick Campbell; Shiuan-Huei Lin; Xianmin Yi; Pochi Yeh

doi:10.1117/12.217022

18 August 1995 Photorefractive volume holographic memory systems: approaches, limitations, and requirements

Scott Patrick Campbell, Shiuan-Huei Lin, Xianmin Yi, Pochi Yeh

Proceedings Volume 2529, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications; (1995) https://doi.org/10.1117/12.217022
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Volume holographic memory systems provide a compact method by which data can be stored with high density and rapid accessibility. In these systems, for example, wavelength, angle, and phase multiplexing approaches have been utilized for the addressing of data pages. We analyze, in general, practical limitations in such systems due to cross-talk effects, beam depleting and material heating absorption effects, and multiplexing approaches. For example, beam depletion during the writing and reading of holograms in a volume holographic memory will cause the envelope of the diffracted beams to not be rect-like as simple cross-talk theories rely on, and material heating will act to detune, smear, and redirect beams during readout. We also characterize the photon-limited information throughput rates during recall from these systems. Finally, we demonstrate advances in our sparse-wavelength angle-multiplexed volume holographic memory system, achieving the storage of 2,000 holographic pages, each with approximately 2.35 million bits each, utilizing 400 angles (over a 3 degree external tuning span) and five wavelengths (over a 56 nanometer span) in a 1.86 cubic centimeter volume of lithium niobate.

Citation Download Citation

Scott Patrick Campbell, Shiuan-Huei Lin, Xianmin Yi, and Pochi Yeh "Photorefractive volume holographic memory systems: approaches, limitations, and requirements", Proc. SPIE 2529, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications, (18 August 1995); https://doi.org/10.1117/12.217022

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