, Volume 77, Issue 1, pp 109-111

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

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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.

Received: 23 December 2002 / Accepted: 6 January 2003 / Published online: 28 March 2003
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ID="*"Corresponding author. Fax: +49-3641/65-7680, E-mail: nolte@iap.uni-jena.de