1. Articles from Christoph Eigenwillig

    1-3 of 3
    1. Dynamical Fabry-Perot tuneable filter device

      Dynamical Fabry-Perot tuneable filter device

      A Fabry-Perot tuneable filter device is described with reflecting elements separated by an optical path length to form an optical resonator cavity. A first actuator means is directly or indirectly coupled with a first reflecting element. And the first actuator means is configured to modulate the optical path length between first and second reflecting elements by a modulation amplitude to thereby sweep the optical resonator cavity through a band of optical resonance frequencies with a sweep frequency of 70 kHz or more. And the mechanical coupling between selected elements of the arrangement is sufficiently low such that when operated at ...

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    2. Wavelength-tunable light source

      Wavelength-tunable light source

      In at least one embodiment of the wavelength-tunable light source, it comprises an output source, which is capable in operation of generating electromagnetic radiation. Furthermore, the light source has a wavelength-selective first filter element, which is situated downstream from the output source. Moreover, the light source contains a first amplifier medium, which is situated downstream from the first filter element and is capable of at least partial amplification of the radiation emitted by the output source. The light source further comprises at least one wavelength-selective second filter element, which is situated downstream from the first amplifier medium, the second filter ...

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    3. High-speed polarization sensitive optical coherence tomography scan engine based on Fourier domain mode locked laser

      High-speed polarization sensitive optical coherence tomography scan engine based on Fourier domain mode locked laser

      We report on a new swept source polarization sensitive optical coherence tomography scan engine that is based on polarization maintaining (PM) fiber technology. The light source is a Fourier domain mode locked laser with a PM cavity that operates in the 1300 nm wavelength regime. It is equipped with a PM buffer stage that doubles the fundamental sweep frequency of 54.5 kHz. The fiberization allows coupling of the scan engine to different delivery probes. In a first demonstration, we use the system for imaging human skin at an A-scan rate of 109 kHz. The system illuminates the sample with ...

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    1-3 of 3
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  2. Topics in the News

    1. (3 articles) Robert A. Huber
    2. (3 articles) Christoph M. Eigenwillig
    3. (2 articles) Benjamin R. Biedermann
    4. (2 articles) Wolfgang Wieser
    5. (1 articles) Medical University of Vienna
    6. (1 articles) Ludwig Maximilian University of Munich
    7. (1 articles) Michael Pircher
    8. (1 articles) Christoph K. Hitzenberger
    9. (1 articles) Harald Sattmann
    10. (1 articles) Marco Bonesi
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