New inner cladding shape for high-power double-clad fiber lasers

Jun Zhou; Qihong Lou; Tiejun Li; Zhijiang Wang; Jingxing Dong; Runrong Wei

doi:10.1117/12.481784

5 September 2002 New inner cladding shape for high-power double-clad fiber lasers

Jun Zhou, Qihong Lou, Tiejun Li, Zhijiang Wang, Jingxing Dong, Runrong Wei

Author Affiliations +

Proceedings Volume 4914, High-Power Lasers and Applications II; (2002) https://doi.org/10.1117/12.481784
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Jun Zhou, Jun Zhou, Qihong Lou, Qihong Lou, Tiejun Li, Tiejun Li, Zhijiang Wang, Zhijiang Wang, Jingxing Dong, Jingxing Dong, Runrong Wei, Runrong Wei, "New inner cladding shape for high-power double-clad fiber lasers", Proc. SPIE 4914, High-Power Lasers and Applications II, (5 September 2002); doi: 10.1117/12.481784; https://doi.org/10.1117/12.481784

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