Cavity enhanced eigenmode multiplexing for volume holographic data storage

Ryuichi Katayama, Bo E. Miller, Yuzuru Takashima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Previously, we proposed and experimentally demonstrated enhanced recording speeds by using a resonant optical cavity to semi-passively increase the reference beam power while recording image bearing holograms. In addition to enhancing the reference beam power the cavity supports the orthogonal reference beam families of its eigenmodes, which can be used as a degree of freedom to multiplex data pages and increase storage densities for volume Holographic Data Storage Systems (HDSS). While keeping the increased recording speed of a cavity enhanced reference arm, image bearing holograms are multiplexed by orthogonal phase code multiplexing via Hermite-Gaussian eigenmodes in a Fe:LiNbO3 medium with a 532 nm laser at two Bragg angles for expedited recording of four multiplexed holograms. We experimentally confirmed write rates are enhanced by an average factor of 1.1, and page crosstalk is about 2.5%. This hybrid multiplexing opens up a pathway to increase storage density while minimizing modifications to current angular multiplexing HDSS.

Original languageEnglish (US)
Title of host publicationOptical Data Storage 2017
Subtitle of host publicationFrom New Materials to New Systems
PublisherSPIE
Volume10384
ISBN (Electronic)9781510612259
DOIs
StatePublished - Jan 1 2017
EventOptical Data Storage 2017: From New Materials to New Systems, ODS 2017 - San Diego, United States
Duration: Aug 6 2017 → …

Other

OtherOptical Data Storage 2017: From New Materials to New Systems, ODS 2017
CountryUnited States
CitySan Diego
Period8/6/17 → …

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Keywords

  • Fe:LiNbO3
  • Gaussian Eigenmodes
  • Multiplexing Holography
  • Optical Data Storage
  • Optical Resonators
  • Pseudo-phaseconjugate

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Katayama, R., Miller, B. E., & Takashima, Y. (2017). Cavity enhanced eigenmode multiplexing for volume holographic data storage. In Optical Data Storage 2017: From New Materials to New Systems (Vol. 10384). [1038406] SPIE. https://doi.org/10.1117/12.2272613