High-power FDML laser for swept source-OCT at 1060 nm

Sebastian Marschall, Thomas Klein, Wolfgang Wieser, Benjamin Biedermann, Kevin Hsu, Bernd Sumpf, Karl-Heinz Hasler, Götz Erbert, Ole Bjarlin Jensen, Christian Pedersen, Robert Huber, Peter E. Andersen

    Research output: Contribution to journalConference articleResearchpeer-review


    We present a novel frequency-swept light source working at 1060nm that utilizes a tapered amplifier as gain medium. These devices feature significantly higher saturation power than conventional semiconductor optical amplifiers and can thus improve the limited output power of swept sources in this wavelength range. We demonstrate that a tapered amplifier can be integrated into a fiber-based swept source and allows for high-speed FDML operation. The developed light source operates at a sweep rate of 116kHz with an effective average output power in excess of 30mW. With a total sweep range of 70 nm an axial resolution of 15 μm in air (~11μm in tissue) for OCT applications can be achieved.
    Original languageEnglish
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Publication statusPublished - 2010
    EventBiophotonics : Photonic Solutions for Better Health Care II - Brussels, Belgium
    Duration: 1 Jan 2010 → …


    ConferenceBiophotonics : Photonic Solutions for Better Health Care II
    CityBrussels, Belgium
    Period01/01/2010 → …


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