Seagate Technology will use them in its products.
According to the Nikkei Asian Review, Japan’s Sony Group will launch laser diodes this May that will double the capacity of hard drives to 30 TB in the 3.5-inch form factor. The American company Seagate Technology plans to use the corresponding laser modules when producing hard drives with heated magnetic plate recording technology.
Image source: Nikkei Asian Review
The high resolution of such a radiation source makes it possible to concentrate the laser action on an area of the magnetic plate no more than one millionth of a millimeter wide. During the process of recording information, a specific point can heat up to a temperature of over 400 degrees Celsius. The technology of heating the magnetic plate during recording is designed to increase the storage density of information on hard drives. In the future, Seagate expects to use it to launch production of drives with a capacity of up to 30 TB. The demand for hard drives of similar capacity is fueled by the development of artificial intelligence systems. Sony will invest about $33 million in a plant for the production of laser system components in Japan.