15 February 2017 All-fiber laser at 1.94 µm: effect on soft tissue
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Abstract
A focused laser beam at wavelength of strong water absorption at 1.94 μm can be a good scalpel for precision soft tissue surgery. A fiber Bragg grating-based, all-fiber, continuous-wave as well as modulated, cladding pumped, thulium-doped fiber laser at 1.94 μm has been configured to deliver up to 10 W of laser power under pumping at 793 nm having an efficiency of 32 %. The laser was exposed to freshly sacrificed chicken breast at different power level and exposure time. The formalin-fixed samples were examined by microscopy to identify the ablation region, carbonization and necrosis region for laser parameter optimization.
Conference Presentation
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Atasi Pal, Debasis Pal, Sourav Das Chowdhury, Ranjan Sen, "All-fiber laser at 1.94 µm: effect on soft tissue", Proc. SPIE 10062, Optical Interactions with Tissue and Cells XXVIII, 100620A (15 February 2017); doi: 10.1117/12.2251970; https://doi.org/10.1117/12.2251970
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