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 B. Jensen; Christian Pedersen; Robert Huber; Peter E. Andersen

doi:10.1117/12.854238

17 May 2010 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 B. Jensen, Christian Pedersen, Robert Huber, Peter E. Andersen

Author Affiliations +

Proceedings Volume 7715, Biophotonics: Photonic Solutions for Better Health Care II; 77150B (2010) https://doi.org/10.1117/12.854238
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

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.

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Sebastian Marschall, Thomas Klein, Wolfgang Wieser, Benjamin Biedermann, Kevin Hsu, Bernd Sumpf, Karl-Heinz Hasler, Götz Erbert, Ole B. Jensen, Christian Pedersen, Robert Huber, and Peter E. Andersen "High-power FDML laser for swept source-OCT at 1060 nm", Proc. SPIE 7715, Biophotonics: Photonic Solutions for Better Health Care II, 77150B (17 May 2010); https://doi.org/10.1117/12.854238

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