All-fiber laser at 1.94 µm: effect on soft tissue

Atasi Pal; Debasis Pal; Sourav Das Chowdhury; Ranjan Sen

doi:10.1117/12.2251970

15 February 2017 All-fiber laser at 1.94 µm: effect on soft tissue

Atasi Pal, Debasis Pal, Sourav Das Chowdhury, Ranjan Sen

Proceedings Volume 10062, Optical Interactions with Tissue and Cells XXVIII; 100620A (2017) https://doi.org/10.1117/12.2251970
Event: SPIE BiOS, 2017, San Francisco, California, United States

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

Citation Download Citation

Atasi Pal, Debasis Pal, Sourav Das Chowdhury, and 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); https://doi.org/10.1117/12.2251970

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