Cloud9925

Terminology




• Blue-violet laser diode:

This is the light source used to read signals (pits) on discs in next-generation large-capacity optical disc systems. There is no way the size of beams from the infrared and red laser diodes now used in CDs and DVDs can be reduced to the size of a pit recorded on these discs in conventional optical systems. The shorter wavelength of the blue-violet laser diode however allows the beam to be focused into a reduced spot, and therefore is the key to next-generation large-capacity optical disc systems.
• Dual Layer Recording:

Dual layer recording divides the optical disc recording layer into two doubling the recording capacity over conventional single layer discs. Dual layer recording requires a stronger laser (pulse) than conventional lasers.
• Fundamental transverse mode:

This refers to a mode where distribution of light intensity in a laser beam forms a single peak.

hope this helps in your endeavors to learn more about blue-violet laser technology!!!!

tiggapooh

Thanks so much for your information on blura. You have done a lot of research and I appreciate all the information that you given me. It just seems that technology moves so fast I can hardly keep up. It wasn't too long ago that my son in law put in a dvd burner and player for me. Now there is a disc out there that will hold up to 5 movies at one time. Can you imagine how much it would cost to keep up with all this new technology? If I would have tried, I would have been banrupt years ago. Just wanted to say thanks for your work.