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405-nm Laser Diode Module 25-mW Version
Aug 2006
Photonic Products Ltd.Request Info
HATFIELD BROAD OAK, England, Aug. 8, 2006 -- Photonic Products Ltd., a manufacturer of electro-optical subassemblies and optoelectronic components based on semiconductor laser diode technology, has launched a 25-mW version of its 405-nm (blue-violet) photon laser diode modules with TTL modulation.

Photonic-Products405nm.jpgThe 25-mW output power offered by the module provides higher energy density with a significantly higher signal-to-noise ratio and consequently greater accuracy and sensitivity for biomedical and biochemical analysis applications such as flow cytometry and laser-induced fluorescence sensing, where the objective is to collect as much fluorescent signal as possible, the company said.

Designed as a complete laser diode solution for OEMs, the 405-nm laser modules are also ideal for use in areas such as industrial imaging and inspection, spectroscopy, microscopy, medical imaging and many other emerging technologies where power, accuracy and sensitivity are vital, according to Photonic Products.

The compact and efficient 405-nm laser modules produce a stable elliptical output beam of 3.5 x 2 mm with an output power of 25 mW. The glass antireflective-coated aspherical lens may be adjusted to produce either a collimated beam or focused spot. The standard lens may be replaced by other optical systems such as line generators.

The laser is extremely stable and reliable and offers the added advantage of TTL modulation input, which will accept signals from DC up to 1 kHz minimum. TTL modulation can be used to enable, inhibit or modulate the laser.

Operating voltage is from 8 to 12 V DC at an operating current of 80 mA. Beam divergence is typically <0.6 x 0.3 mrad. Operating temperature range is -10 °C to +50 °C.

The modules are cylindrical with an optional 25-mm mounting flange and are comprised of an aluminium housing, laser diode, drive circuit and collimating lens. Mechanical dimensions are a compact 12-mm diameter x 43-mm length. Electrical connections are made via external flying leads.

For more information, visit:; e-mail:

Photonic Products Ltd.
Sparrow Lane
Hatfield Broad Oak, Hertfordshire CM22 7BA UK
Phone: +44 (0) 1279-717170
Fax: +44 (0) 1279-717171


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