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    • Allan Ashmead

    VP of Research Laser Systems, Coherent

    Allan Ashmead is VP of the Research Laser Systems business unit at Coherent (Santa Clara, CA).

    (Courtesy of Morgan Trassin)
    FIGURE 1. At ETH Zurich, an Astrella amplifier maintains output stability in spite of its proximity to a deposition chamber that reaches internal temperatures as high as 950°C.
    Lasers & Sources

    Revisiting the industrial revolution in scientific lasers

    Allan Ashmead
    Aug. 11, 2020
    A look is taken at how the industrial approach to reliability in ultrafast scientific lasers has resulted in research tools that deliver on their promise.
    FIGURE 1. An earlier version of optical mount (a) is compared with the final version (b) used in a femtosecond laser; the final version incorporates concepts from industrial lasers. The final version is more compliant with externally induced vibration and temperature-change cycles.
    Lasers & Sources

    Solid-State Lasers: Ultrafast scientific lasers undergo an industrial revolution

    Allan Ashmead
    Sept. 8, 2014
    By taking advantage of expertise from the world of industrial lasers, ultrafast lasers have become simpler and more reliable, yielding improvements in cost of data and data throughput...