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Herzig, Hans-Peter

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Herzig, Hans-Peter
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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
    Applications of SOI-based optical MEMS
    (2002)
    Noell, Wilfried
    ;
    Clerc, Pierre-André
    ;
    Dellmann, Laurent
    ;
    Guldimann, Benedikt
    ;
    Herzig, Hans-Peter 
    ;
    Manzardo, Omar
    ;
    Marxer, Cornel
    ;
    Dändliker, René 
    ;
    de Rooij, Nicolaas F.
    After microelectromechanical systems (MEMS) devices have been well established, components of higher complexity are now developed. Particularly, the combination with optical components has been very successful and have led to optical MEMS. The technology of choice for us is the silicon-on-insulator (SOI) technology, which has also been successfully used by other groups. The applications presented here give an overview over what is possible with this technology. In particular, we demonstrate four completely different devices: (a) a 2 × 2 optical cross connector (OXC)with an insertion loss of about 0.4 dB at a switching time of 500 μs and its extension to a 4 × 4 OXC, (b) a variable optical attenuators (VOA), which has an attenuation range of more than 50 dB (c) a Fourier transform spectrometer (FTS) with a spectral resolution of 6 nm in the visible, and (d) an accelerometer with optical readout that achieves a linear dynamic range of 40 dB over ±6 g. Except for the FTS, all the applications utilized optical fibers, which are held and self-aligned within the MEMS component by U-grooves and small leaf springs. All devices show high reliability and a very low power consumption.