Pal, Atasi and Pal, Debasis and Das Chowdhury, Sourav and Maiti, Krishnendu and Sen, Ranjan (2019) Interaction of thulium fiber laser with urinary stone: effect of laser parameter on fragmented particle size and retropulsion. Proceedings of SPIE , 10876. 151 - 155. ISSN 0277-786X

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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.

Item Type:	Article
Uncontrolled Keywords:	Thulium fiber laser, Continuous wave, Quasi-continuous wave, urinary stone, lithotripsy, retropulsion
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Nov 2020 07:38
Last Modified:	16 Nov 2020 07:38
URI:	http://cgcri.csircentral.net/id/eprint/4771

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