Taking China Group as an example, it has built a single 300GB optical disc production line in Dalian. The use of optical disc cartridge packaging technology can make a single optical disc cartridge the same size as a single hard disk with a storage capacity of 3.6TB. And multi-layer technology to achieve single-disk TB and 10TB-level storage capacity. “Not only will the capacity of Blu-ray media increase year by year, but with the popularization of laser pointer for Blu-ray disc applications, the one-time purchase price will also be better than hard disks and tapes.
In terms of R & D and application of Blu-ray disc library technology, we have achieved a single cabinet with a capacity of 2PB. The power of a single cabinet is less than 200 watts and the standby power is less than 10 watts. Both the media and the equipment are at the world-leading level. So, can “persistent storage” be realized? High-density optical storage technology represents the future development direction of optical storage.
Today’s information technology is changing with each passing day. In order to meet the growing demand for laser pointers storage, various storage technologies are mainly developed with the goal of increasing storage capacity, density, reliability, and data transmission rate. Currently, holographic storage, blue light storage, and super-resolution near-field structure storage are the main research directions. In the long run, the expansion of blue light technology, that is, combining with multi-order, super-resolution near-field structure, multi-wavelength and other technologies, can further expand the storage capacity to meet future development needs.