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World Innovation: Omicron presents the first diode laser with

The analog and digitally-modulated laser diode module Deepstar offers a modulation
depth of significantly more than 100,000 to one. These lasers are particularly
suitable for fluorescence excitation and all applications where absolutely no
remaining light is allowed in the “off” moment during the modulation. Deepstar is the
ideal source of light, for example for “Confocal Laser Scanning Microscopy” and
“Flow Cytometry”. With the ultradeep analog modulation greater than ten megahertz
and a digital modulation greater than 100 megahertz with a signal rise and signal fall
time of less than two nanoseconds, Deepstar is also suitable for those highperformance
applications which, up to now, were possible only with CW lasers and
AO modulators. The Deepstar diode laser is available with
20 milliwatt (mW) at 375 nanometers (nm), 60 mW at 405 nm, 50 mW at 442 nm, 20
mW at 473 nm, as well as with different powers up to 150 mW at 635 to 980 nm. The
laser has a controller which is equipped with an RS-232 interface and is operated
with 24 volt DC voltage. The analog and the digital signal input can be configured
with respect to voltage and impedance so that adaptation to the existing signal
sources can be implemented easily.
Furthermore, the modular principle of the laser heads of the LDM Series offers
further possibilities for customer-specific adaptation, such as single-mode fiber
coupling with an efficiency of up to 75 percent, collimation for 0.5 to 15 millimeters of
beam diameter, focussing objectives down to under one micrometer and a lot more.
The spectacular new Omicron diode laser by the name of “Deepstar” will be
presented during the Optatec Trade Fair in Frankfurt at Stand Number D50. Further
information about the lasers of the LDM Series can be found under under
www.lasersystem.de.