Interaction of thulium fiber laser with urinary stone: effect of laser parameter on fragmented particle size and retropulsion

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

doi:10.1117/12.2509481

1 March 2019 Interaction of thulium fiber laser with urinary stone: effect of laser parameter on fragmented particle size and retropulsion

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

Author Affiliations +

Proceedings Volume 10876, Optical Interactions with Tissue and Cells XXX; 108760X (2019) https://doi.org/10.1117/12.2509481
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Single-mode thulium fiber laser (TFL) at 1.94 μm with optimal energy and pulse settings has potential benefits for lithotripsy over the presently used Ho:YAG laser. A fiber Bragg grating-based, all-fiber, continuous-wave and modulated TFL at 1.94 μm is configured to deliver up to 30 W of laser power with efficiency of 50%. The TFL operating in the range of repetition rate 10 Hz-1 kHz and corresponding pulse energy 2 J-1.05 mJ is irradiated on urinary stone for in-vitro evaluation of fragmented particle size and retropulsion. TFL irradiation at higher repetition rate fragments the stones into smaller particle size (average size of few hundreds microns) resulting reduced retropulsion.

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Citation Download Citation

Atasi Pal, Debasis Pal, Sourav Das Chowdhury, Krishnendu Maiti, and Ranjan Sen "Interaction of thulium fiber laser with urinary stone: effect of laser parameter on fragmented particle size and retropulsion", Proc. SPIE 10876, Optical Interactions with Tissue and Cells XXX, 108760X (1 March 2019); https://doi.org/10.1117/12.2509481

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