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Diode Lasers:

Photonics Spectra
Jan 1998
Researchers search for elusive blue/green spectrum

David Bour, Electronic Materials Laboratory, Xerox Palo Alto Research Center

For years, scientists have searched for the secret to cheap, compact blue lasers for high-density optical storage. Blue diode lasers' short wavelength offers a small focused spot size, which would maximize the density and transfer rate of stored data. Further development will probably concentrate on extending the device's operation to higher powers (~ 20 mW), to meet the needs for DVD-RAM systems.

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