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Herzig, Hans-Peter

Nom
Herzig, Hans-Peter
Affiliation principale
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Ancien.ne collaborateur.trice
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https://libra.unine.ch/handle/123456789/34327

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  • Publication
    Accès libre
    Optical MEMS based on silicon-on-insulator (SOI) for monolithic microoptics
    (2002)
    Noell, Wilfried
    ;
    Sun, Winston
    ;
    de Rooij, Nicolaas F.
    ;
    Herzig, Hans-Peter 
    ;
    Manzardo, Omar
    ;
    Dändliker, René 
    Microelectromechanical systems (MEMS) combined with optical components add optical functionality to devices and lead to the terms optical MEMS or MOEMS. The underlying technology of the presented devices is silicon-on-insulator (SOI) based batch fabrication, which delivers small, reliable and lasting monolithic bulk silicon structures for commercial devices with the advantage of being very insensitive to temperature changes. The particular strength of the technology is monolithic horizontal and vertical micromirrors for a variety of applications.
  • Publication
    Accès libre
    Pulsed fiber laser using micro-electro-mechanical mirrors
    (1999)
    Peter, Yves-Alain
    ;
    Herzig, Hans-Peter 
    ;
    Rochat, Etienne
    ;
    Dändliker, René 
    ;
    Marxer, Cornel
    ;
    de Rooij, Nicolaas F.
    Two different types of micromirrors are integrated with a fiber laser to modulate the cavity Q-factor. Both systems operate at frequencies up to 60 kHz and generate a pulse peak power 100 times higher than the continuous emission. We simulate the emitted pulses and find a good agreement with the measured value for the period of relaxation oscillations. The simulations also show the necessity of a shorter rise time of the Q-factor modulation to achieve one single giant and narrow Q-switched pulse.