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Proceedings Paper

New inner cladding shape for high-power double-clad fiber lasers
Author(s): Jun Zhou; Qihong Lou; Tiejun Li; Zhijiang Wang; Jingxing Dong; Runrong Wei
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Paper Abstract

In this paper, We have proposed a new cross section shape of inner cladding benefited from the conception of unsteady cavity in laser technology. The absorption characteristic of this new type double-clad fiber is analyzed in detail with ray tracing method. For this new type and rectangular double-clad fibers, with core diameter 8im and pump area 100?mX 100?m, about 98% pumped propagation rays are absorbable after 100 times reflection in the inner cladding, so it is possible to achieve very high absorption efficiency. However, for circular, offset and D shape double-clad fibers, with same core diameter and pump area above, only 10%, 50%,80% pumped propagation rays are absorbable.

Paper Details

Date Published: 5 September 2002
PDF: 5 pages
Proc. SPIE 4914, High-Power Lasers and Applications II, (5 September 2002); doi: 10.1117/12.481784
Show Author Affiliations
Jun Zhou, Shanghai Institute of Optics and Fine Mechanics and Graduate School of CAS (China)
Qihong Lou, Shanghai Institute of Optics and Fine Mechanics (China)
Tiejun Li, Shanghai Institute of Optics and Fine Mechanics (China)
Zhijiang Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Jingxing Dong, Shanghai Institute of Optics and Fine Mechanics (China)
Runrong Wei, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4914:
High-Power Lasers and Applications II
Dianyuan Fan; Keith A. Truesdell; Koji Yasui, Editor(s)

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