Sanyo develops new laser for 54 GB dual-layer Blue-ray discs

March 28, 2003

According to the website
Digit-Life.com is Sanyo developing a new blue-violet laser for dual-layer
Blue-ray discs. While there is still no real standard for the blue ray laser
format, developments on the format are rapidly making progress. According to the
article the capicity of the disk will be twice the current 27 GB, making it a
total of 54 Gigabytes.

As you know, the current single-layer Blue-ray discs have 27Gb
capacity, new lasers doubling this volume. The novelty utilize gallium
nitride (GaN) composite material. Such a high radiation power was achieved
due to a special current stabilizer along with high-quality optics. Laser
main specs:

Continuous optical power: 50mW

Pulse optical power: 100mW

Threshold current: 40mA

Nominal current (at 50mW optical power):
100mA

Wavelength: 405nm

Beam angle: 8Â° horizontal / 23Â° vertical

More information on this new laser can be found in the article on
Digit-Life. If you would like more information on Blu-Ray then please read
this
article.

Source: Digit-Life.com