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    • Ralph Gudde

    General Manager/Managing Director, TRUMPF Photonic Components BV

    Ralph Gudde is general manager/managing director at TRUMPF Photonic Components BV (Eindhoven, Netherlands).

    (Image credit: Bosch Sensortec)
    FIGURE 1. The world’s smallest particulate matter sensor uses miniature lasers and is maintenance-free since it operates without a fan.
    Lasers & Sources

    Case study: Monitoring air quality on the move

    Peter Ostertag
    May 11, 2023
    TRUMPF and Bosch Sensortec introduce a tiny, portable particulate matter sensor based on vertical-cavity surface-emitting lasers (VCSELs).