Results on new 850nm and 1310nm VCSEL products under development at JDSU will be presented with emphasis on
reliability criteria, advances in performance, and interconnect design. An update will also be provided on JDSU's
effort to introduce 10Gpbs LW VCSEL based components and modules into the marketplace.
Luke Graham, Jack Jewell, Kevin Maranowski, Max Crom, Stewart Feld, Joseph Smith, James Beltran, Thomas Fanning, Melinda Schnoes, Matthew Gray, David Droege, Vera Koleva, Mike Dudek, John Fiers, Russ Patterson
This article outlines development work at JDSU on InGaNAs based vertical cavity surface emitting lasers (VCSELs)
operating at 1270nm and their use in 10Gbps SFP+ modules. DC and AC performance of die and transmit optical
subassemblies (TOSAs) will be described. Due to their low power consumption, LW VCSELs are ideal for use in
SFP+; module performance will be described as well.
KEYWORDS: Holography, Holograms, Digital holography, Photopolymer media, Data storage, Refractive index, Multiplexing, High dynamic range imaging, Semiconductor lasers, Diffraction
We report new photopolymer media for holographic data storage (HDS) at blue wavelengths (~ 405 nm), which show great promise for a practical HDS system.
An easily fabricated organic holographic media is presented that is rewriteable, sensitive to 407nm light, and that exhibits high storage capacity, sensitivity, and environmental robustness.
KEYWORDS: Holograms, Holography, Digital holography, Multiplexing, Data storage, Diffraction, Chemistry, Volume holography, Holographic materials, High dynamic range imaging
Holographic data storage (HDS), which makes use of the full volume of the recording medium, possesses high potential by promising fast transfer rates of hundreds of Megabytes/sec and storage densities greater than 200 Gbytes per 120mm disk. The restrictions that are placed on the holographic media, however, are stringent. Described here is a high performance photopolymer based medium that has the properties necessary to enable this technology. Through the use of several different holographic techniques, the material characteristics that are necessary for holographic storage products may be determined. The two different systems that are discussed here include Plane Wave and Digital Holographic Data Storage. These measured characteristics include high dynamic range (M/#), sensitivity, and small recording-induced Bragg detuning. In addition, results of archival and shelf-life environmental testing of the media will be discussed.
KEYWORDS: Holograms, Holography, Digital holography, Multiplexing, Data storage, Diffraction, Chemistry, Holographic materials, Volume holography, High dynamic range imaging
Holographic data storage (HDS), which makes use of the full volume of the recording medium, possesses high potential by promising fast transfer rates of hundreds of Megabytes/sec and storage densities greater than 200 Gbytes per 120mm disk. The restrictions that are placed on the holographic media, however, are stringent. Described here is a high performance photopolymer based medium that has the properties necessary to enable this technology. Through the use of several different holographic techniques, the material characteristics that are necessary for holographic storage products may be determined. The two different systems that are discussed here include Plane Wave and Digital Holographic Data Storage. These measured characteristics include high dynamic range (M/#), sensitivity, and small recording-induced Bragg detuning. In addition, results of archival and shelf-life environmental testing of the media will be discussed.
KEYWORDS: Digital holography, Data storage, Holography, Holograms, Photopolymer media, Refractive index, CCD cameras, Optical storage, Multiplexing, Holographic data storage systems
We report on the holographic storage and recovery of multiple high capacity (800 X 600, 480 kbit) data pages in 250 micrometer and 500 micrometer thick photopolymer media. The data pages were recovered with raw bit error rates less than 5 X 10-3, the level correctable by current error correction strategies. Our results demonstrate that photopolymer systems can be fabricated with the optical quality and low level of scatter required for digital data storage.
KEYWORDS: Data storage, Digital holography, Holography, Holograms, Photopolymer media, Refractive index, Digital photography, Holographic data storage systems, Polymerization, Photopolymers
We report on the holographic storage of multiple digital data pages in photopolymer media. The results demonstrate the potential of these materials for high density data storage.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.