Ghosh, Aditi and Pal, Debasis and Sen, Ranjan and Pal, Atasi (2014) Fiber Laser at 2 mu m for Soft Tissue Surgery. In: HIGH-POWER LASERS AND APPLICATIONS VII. Proceedings of SPIE, 9266 (9266). SPIE, Beijing, Article No.-92660E. ISBN 978-1-62841-339-7

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Strong water absorption at 2 mu m 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 mu m 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.

Item Type: Book Section
Additional Information: Conference on High-Power Lasers and Applications VII, Beijing, PEOPLES R CHINA, OCT 09-11, 2014
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 25 Mar 2015 10:25
Last Modified: 02 Jun 2016 11:55

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