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.
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Received: 23 December 2002 / Accepted: 6 January 2003 / Published online: 28 March 2003
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Nolte, S., Will, M., Burghoff, J. et al. Femtosecond waveguide writing: a new avenue to three-dimensional integrated optics . Appl Phys A 77, 109–111 (2003). https://doi.org/10.1007/s00339-003-2088-6
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DOI: https://doi.org/10.1007/s00339-003-2088-6