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Applied Physics A

, Volume 77, Issue 1, pp 109-111

Femtosecond waveguide writing: a new avenue to three-dimensional integrated optics

  • S. NolteAffiliated withInstitute of Applied Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany
  • , M. WillAffiliated withInstitute of Applied Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany
  • , J. BurghoffAffiliated withInstitute of Applied Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany
  • , A. TuennermannAffiliated withInstitute of Applied Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany

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Abstract.

Using tightly focussed femtosecond laser pulses, waveguides can be fabricated inside various glasses and crystals. This technique has the potential to generate not only planar but three-dimensional photonic devices. In this paper we present, to the best of our knowledge, the first true three-dimensional integrated optical device, a 1×3 splitter fabricated in pure fused silica. The optical properties of this device and possibilities for the fabrication of complex high-density integrated optical elements are discussed.

PACS: 42.62.-b; 42.82.-m; 42.82.Et; 81.20.-n