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Ytterbium Tungstate Revolutionizes the Field of High-Power Ultrafast Lasers

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Direct diode pumping has enabled femtosecond amplifier systems with far simpler architecture and higher average power than traditional Ti:sapphire products.

Dr. Arnd Krueger and Philippe Féru, Spectra-Physics

A recently commercialized laser material, ytterbium tungstate (Yb:KGW), is the basis for a new generation of high-power femtosecond systems that can be efficiently and directly pumped with diode lasers. These new amplifiers have a simpler and more rugged architecture than traditional Ti:sapphire amplifiers. Moreover, they can deliver higher average powers (up to 4 W) at higher repetition rates (up to 7 kHz) — addressing the demand for higher throughput in the area of femtosecond materials processing applications. The output of these amplifiers can be used to drive one or more widely...Read full article

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