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Shorter Pulse Widths Improve Micromachining

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Oliver Haupt, Dirk Müller and Frank Gäbler, Coherent Inc.

Many cutting-edge applications are critically enabled by ultrafast lasers, but other demanding applications can now switch to a new type of subnanosecond solid-state laser. In recent years, Q-switched diode-pumped solid-state (DPSS) lasers and fiber lasers with pulse widths of a few tens of nanoseconds have become the workhorses for many micromachining applications. But some drilling, cutting and surface patterning applications demand even better results than nanosecond laser pulse widths can achieve. As a result, they have moved to lasers with picosecond pulse widths. Ultrafast...Read full article

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    Published: June 2013
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    AmericasBasic ScienceCoherentCoherent HeliosConnecticutConsumerdepth of layerDirk MullerDisplaysDOLDPSSDPSS lasersEuropeFeaturesfiber lasersfilament cuttingFrank GablerGermanyglass cuttingHAZheat-affected zoneindustrialindustrial laserslaser cuttinglaser drillinglaser micromachininglaser pulse widthlaser surface patterningLCD touchscreensmaster oscillator power amplifiermicromachiningMOPAmultiphoton absorptionnanonanosecond lasersOliver Hauptphotoablationpicosecond pulse widthsQ-switched diode-pumped solid-state laserssapphire cuttingsmartphone displayssubnanosecond lasersubnanosecond solid-state lasersthin-film micromachiningultrafast lasersLasers

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