Press information

20.01.2005 Overview
 

Laser diode for industrial applications:

Compact and powerful

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Source: OSRAM
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With SIRILAS, Osram Opto Semiconductors is setting a new standard in laser diodes for pumping solid-state lasers. The modules each contain a laser bar comprising 16 individual emitters. This makes it around 20 % smaller than current standard packages. What’s more, the package is modular and enclosed, which makes it easier to handle and simplifies the manufacturing process.

SIRILAS is the first product in a new group of laser diodes with a specially tailored heat sink. Integrated cooling ribs on which the laser bar is centred provide effective water cooling. The developers came up with a single cooling channel to counter the possibility of corrosion. The enclosed casing keeps dust out and also protects against contact. An integrated lens produces an almost parallel beam, with vertical divergence of less than one degree. This results in better beam quality, making the laser suitable for use in direct processes such as sheet welding.

The output of the laser diode is 30 W. With a wavelength of 808 nm, it is ideal for example for pumping neodymium-doped solid-state lasers (Nd-YAG). The modular concept of the laser design means that other wavelengths can also be used, such as 940 nm and 980 nm. The manufacturing process is standardised so the laser diode can be produced much more cost-effectively than previous designs and the price can be held below usual market levels. In contrast to conventional laser stacks, the new pump source can be replaced individually in laser diode lines as necessary. This reduces maintenance costs and therefore operating costs.

The bar soldering method developed at Osram Opto Semiconductors increases the load capacity of the laser diode in pulse applications - even pulsing on a second cycle - making the diode perfect for industrial applications. It can be used in material processing and medical engineering.

Laser diode for industrial applications:
Compact and powerful
The laser diode with an integrated laser bar is much smaller than conventional laser diodes and can also be replaced individually, making them ideal candidates for pumping solid-state lasers, a market previously dominated by discharge lamps.

Press contact:

OSRAM

Marion Reichl
Tel: +49-941-850-1693
Fax: +49-941-850-4441693
Email: marion.reichl@osram-os.com