Pressreleases

Diode Laser on the advance: Omicron Sets Trends with the

With it Omicron treads completely new paths in laser technology proving to
the contrary what critics thought to be impossible in respect of the production of DVD
press patterns on a glass substrate, the so called DVD-Mastering with diode laser: the
innovative equipment from the series of Laser Diode Modules (LDM) by Omicron is
able to create the structural resolution of less than 200 nanometers in one photoresist
as required for the HD-DVD format. Gas lasers with an emission-wave-length of 351
nanometers or less had been used so far. The new diode laser by Omicron with a
wave length of 375 nanometers put into practice what had thought to be impossible.
Furthermore it does not require a cost intensive acusto-optical AO-modulator any
more as the Omicron diode laser can be modulated analogously in a direct way with
up to 350 megahertz thus being by 30 percent faster than the AO-modulators.
While the manufacture of a glass master by means of a gas laser requires approx.
three hours the exposure time of the Omicron diode laser is only two hours.
The main advantage of the latest Omicron innovation in shown in the economic
efficiency of the system. The Omicron diode laser is hardly bigger than a mobile
phone and requires just the thousandth part of the current a 50 times bigger gas laser
would need. Furthermore the acquisition costs of this equipment for the manufacture
with diode lasers is many times more favourable and existing DVD manufacturing
equipment can be converted without problem.