Editing Holography (section)

===Data storage===
{{Main|Holographic data storage}}
Holographic data storage is a technique that can store information at high density inside crystals or photopolymers. The ability to store large amounts of information in some kind of medium is of great importance, as many electronic products incorporate storage devices. As current storage techniques such as [[Blu-ray Disc]] reach the limit of possible data density (due to the diffraction-limited size of the writing beams), holographic storage has the potential to become the next generation of popular storage media. The advantage of this type of data storage is that the volume of the recording media is used instead of just the surface.
Currently available [[spatial light modulator|SLMs]] can produce about 1000 different images a second at 1024×1024-bit resolution which would result in about one-[[gigabit per second|gigabit-per-second]] writing speed.<ref>{{Cite journal |last1=Lang |first1=M. |last2=Eschler |first2=H. |date=1974-10-01 |title=Gigabyte capacities for holographic memories |url=https://dx.doi.org/10.1016/0030-3992%2874%2990061-9 |journal=Optics & Laser Technology |language=en |volume=6 |issue=5 |pages=219–224 |doi=10.1016/0030-3992(74)90061-9 |bibcode=1974OptLT...6..219L |issn=0030-3992}}</ref>

In 2005, companies such as Optware and [[Maxell]] produced a 120&nbsp;mm disc that uses a holographic layer to store data to a potential 3.9&nbsp;[[terabyte|TB]], a format called [[Holographic Versatile Disc]]. As of September 2014, no commercial product has been released.

Another company, [[InPhase Technologies]], was developing a competing format, but went bankrupt in 2011 and all its assets were sold to Akonia Holographics, LLC.

While many holographic data storage models have used "page-based" storage, where each recorded hologram holds a large amount of data, more recent research into using submicrometre-sized "microholograms" has resulted in several potential [[3D optical data storage]] solutions. While this approach to data storage can not attain the high data rates of page-based storage, the tolerances, technological hurdles, and cost of producing a commercial product are significantly lower.