We present a frequency-shifted feedback (FSF) laser based on a tapered amplifier. The laser operates as a coherent broadband source with up to 370GHz spectral width and 2.3us coherence time. If the FSF laser is seeded by a continuous-wave laser a frequency comb spanning the output spectrum appears in addition to the broadband emission. The laser has an output power of 280mW and a center wavelength of 780nm. The ease and flexibility of use of tapered amplifiers makes our FSF laser attractive for a wide range of applications, especially in metrology.
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- 1 Institute of Physics, University of Amsterdam [IoP, UvA]
- 2 Institut für Experimentalphysik, Universität Innsbruck
- 3 Universität Innsbruck / University of Innsbruck [UBI]
- 4 Institut für Quantenoptik und Quanteninformation / Institute for Quantum Optics and Quantum Information Innsbruck [IQOQI Innsbruck]