FDML swept source at 1060 nm using a tapered amplifier

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


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
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV
EditorsJoseph A Izatt, James G Fujimoto, Valery V Tuchin
Number of pages5
Publication date19.02.2010
ISBN (Print)9780819479501
Publication statusPublished - 19.02.2010
- San Francisco, United States
Duration: 23.01.201028.01.2010


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