9 March 2016 Fabrication of homogeneously emitting optical fiber diffusors using fs-laser ablation
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Abstract
The photodynamic therapy (PDT) enables selective treatment of cancerous tissue with light inside the human body. Optical fibers deliver the light into the cancerous tissue and diffusors that are attached to the ends of the fibers scatter the light inside the tumor. In order to destroy the entire cancerous tissue, the emission profile should be uniform along the fiber. Such fiber diffusors can be fabricated directly at the fiber end by ablating light-scattering cavities with fs-pulses around the tip using a combination of scanner and rotation axis. These cavities must be designed such that the lig ht distribution is uniform along the diffusor.
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Matthias Domke, Matthias Domke, Johannes Gratt, Johannes Gratt, Ronald Sroka, Ronald Sroka, "Fabrication of homogeneously emitting optical fiber diffusors using fs-laser ablation", Proc. SPIE 9740, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI, 97400O (9 March 2016); doi: 10.1117/12.2212475; https://doi.org/10.1117/12.2212475
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