Improved holographic media from Hitachi Maxell

Despite the fact that the technology of holographic recording is still at the stage of active development and can only be positioned as a relatively promising solution, work on the improvement of such storage devices is ongoing. Thus, at CEATEC , Hitachi Maxell showed an audio playback system, which was created using a working prototype of HROM holographic media.


In the new device, the company's employees were able to solve one serious problem that all developers of holographic storage devices had to face. In particular, for the formation of the initial beam and for receiving the modified signal passed through the disk (as well as for reading information), it was necessary to place two optical systems on opposite sides of the carrier. In HROM, both systems are located on one side of the carrier, with the secondary signal being sent to the receiver by a special reflective layer. Thus, Hitachi managed to create the most compact device (about the size of a postage stamp).

However, any outstanding characteristics of HROM still can not boast. Its capacity is only 4 GB, and the data transfer rate is 16 Mbit per second. Hitachi claims that the cost of the carrier should not exceed a few dollars. But until the production of such products becomes widespread, it is still too early to talk about a specific price.

via 3DNews