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Spectra-Physics claims diode laser power record

05 Oct 2006

ProLite diode laser delivers 714 W of CW output.

Newport's Spectra-Physics division says it has achieved 714 W of continuous wavelength operation using its ProLite diode laser. The result was achieved in a non-destructive test with 940 nm diode laser bars that incorporate Spectra Physics' latest epitaxial design and a "start-of-the-art" growth process.

"Our diode laser performance has shattered previously recorded data. As well as the output, we have observed peak power conversion efficiency of more than 65% from our diode laser bars," said Franck Leibreich, marketing director at Spectra-Physics. "Even at 714 W efficiency was above 57%. Temperature sensitivity was low: 714 W at 15ºC, 702 W at 25ºC and 680 W at 35ºC."

Leibreich continued, "Because the results of this experiment were limited by the power supply, we have only scratched the surface of the capabilities of our new platform. We look forward to transitioning these new devices to manufacturing."

Spectra-Physics' ProLite diode lasers includes a range of products covering the 780 to 980 nm range. Single emitter and fiber-coupled single emitter lasers typically offer several watts of direct output. Multi-emitter laser bars and fiber-coupled bars enable operation at 10 W and above. The Monsoon stacks provide output from 50 W to the kilowatt range for power intensive applications.

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