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Proceedings Paper

Thermal modeling of active fiber and splice points in high power fiber laser
Author(s): Ziyan Huang; Tze Yang Ng; Chu Perng Seah; Serene Hui Ting Lim; Rui Fen Wu
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Paper Abstract

A unique thermal model supported by experimental data has been successfully developed for the study of splicing joint, which is the main weakness for >100s watt fiber laser. Surface temperature of the fiber was monitored at pumping powers up to 230W under various cooling configurations. Temperature matching using a Finite Element Modeling (FEM) software was achieved by adjusting the magnitude of the heat load. This allowed reliable characterization of heating in splice joints and led to a precise prediction of the splice point temperature at higher powers. Excellent agreement to within 2°C between modeling and experimental data was achieved. This thermal simulation methodology is extended to study the splicing joint between passive fiber and active fiber under pumping power of 1.5kW. It shows the maximum surface temperature of the active fiber is <100°C with a simple mechanical package.

Paper Details

Date Published: 10 February 2011
PDF: 8 pages
Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79142W (10 February 2011); doi: 10.1117/12.876429
Show Author Affiliations
Ziyan Huang, DSO National Labs. (Singapore)
Tze Yang Ng, DSO National Labs. (Singapore)
Chu Perng Seah, DSO National Labs. (Singapore)
Serene Hui Ting Lim, DSO National Labs. (Singapore)
Rui Fen Wu, DSO National Labs. (Singapore)

Published in SPIE Proceedings Vol. 7914:
Fiber Lasers VIII: Technology, Systems, and Applications
Jay W. Dawson, Editor(s)

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