Press information

14.06.2005 Overview
 

Laser bars with stable 150W outputs:

Pushing the boundaries

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Source: OSRAM
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The new laser bars from Osram Opto Semiconductors combine high output and enhanced reliability. They can be integrated in different packages and are ideal for pumping solid-state lasers and for direct material processing.

This high output has been achieved through process optimization and improvements in semiconductor design. The special single-quantum well structure not only reduces the laser threshold but also the absorption in the semiconductor. This results in powerful and durable laser diodes with efficiency values as high as 65%. The latest example is a laser diode prototype with an emission wavelength of 940 nm. The prototype achieves an output of 150 W from a 10 mm bar and has a lifespan of up to 20,000 hours. The optimized semiconductor structure offers more space for the resonator but has the same standard bar length. A longer resonator means there is a greater cooling area, enabling heat to be removed more quickly.

Numerous standard solutions are currently available with wavelengths from 780 to 980 nm, outputs from 40 to 150 W and a range of different structures that offer brilliant beam quality.

Laser bars with stable outputs of 150 W:
Pushing the boundaries
Greater reliability, higher output and improved costs make laser diodes ideal alternatives to conventional discharge lamps for pumping solid-state lasers and for direct material processing.

Press contact:

OSRAM

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