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 Bjarlin Jensen, Christian Pedersen, Robert Huber, Peter E. Andersen

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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.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume7554
Pages (from-to)75541H
ISSN0277-786X
DOIs
Publication statusPublished - 2010
EventPhotonics West: Biomedical Optics (BiOS) : Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV - San Francisco, CA, USA
Duration: 1 Jan 2010 → …

Conference

ConferencePhotonics West: Biomedical Optics (BiOS) : Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV
CitySan Francisco, CA, USA
Period01/01/2010 → …

Bibliographical note

Copyright 2010 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • tunable laser
  • optical coherence tomography
  • tapered amplifier
  • swept source
  • fourier domain mode-locking

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