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Proceedings Paper

Fiber laser at 2 µm for soft tissue surgery
Author(s): Aditi Ghosh; Debasis Pal; Ranjan Sen; Atasi Pal
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Paper Abstract

Strong water absorption at 2 μm generated recent interest in lasers at this wavelength for soft tissue surgery. A fiber Bragg grating-based, all-fiber, continuous-wave, cladding pumped, thulium-doped fiber laser at 1.95 μm is configured. The thulium-doped active fiber with octagonal-shaped inner cladding is pumped at 808 nm (total power of 17 W) with six laser diodes through a combiner. The laser power of 3.3 W (after elimination of unabsorbed pump power through a passive fiber) with slope efficiency of 23% (against launched pump power) is achieved. The linear variation of laser power with pump offers scope of further power scaling.

Paper Details

Date Published: 18 November 2014
PDF: 6 pages
Proc. SPIE 9266, High-Power Lasers and Applications VII, 92660E (18 November 2014); doi: 10.1117/12.2071817
Show Author Affiliations
Aditi Ghosh, Central Glass and Ceramic Research Institute (India)
Debasis Pal, Central Glass and Ceramic Research Institute (India)
Ranjan Sen, Central Glass and Ceramic Research Institute (India)
Atasi Pal, Central Glass and Ceramic Research Institute (India)

Published in SPIE Proceedings Vol. 9266:
High-Power Lasers and Applications VII
Ruxin Li; Upendra N. Singh; Robert F. Walter, Editor(s)

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