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Opportunities in high-power fiber lasers

Sahu, Jayanta K., Kim, Jaesun, Yoo, Seongwoo, Webb, A.S., Codemard, Christophe, Dupriez, Pascal, Jeong, Yoonchan, Nilsson, Johan, Richardson, David J. and Payne, David N., (2006) Opportunities in high-power fiber lasers Dutta, Achyut K., Ohishi, Yasutake, Dutta, Niloy K. and Moerk, Jesper (eds.) At SPIE Optics East. 01 - 04 Oct 2006. 7 pp, 7pp. (doi:10.1117/12.687497).

Record type: Conference or Workshop Item (Other)


Fiber lasers and amplifiers offer unique characteristics that are derived from the use of a waveguide and the properties of rare-earth doped silica glass. Their capability for high output power, with high efficiency, has been demonstrated both in CW and pulsed regimes. Cladding-pumped Yb-doped fiber lasers have now reached beyond kW levels with good beam quality. Advances in both fiber technology and high-power multimode diode pump sources, and the inherent power scalability of cladding-pumped fibers, lie behind this power surge. However, there are still many challenges to overcome in the high-power fiber laser area. These include, for example, single-mode output at higher powers and power scaling of a three-level laser. This paper reviews novel W-type fiber and depressed clad hollow optical fiber waveguide structures designed with distributed wavelength filter characteristics to achieve an efficient and high power cladding-pumped three-level lasers such as Nd-doped fiber laser operating at 930 nm and Yb-doped fiber laser at 980 nm. Moreover, such fiber geometries enable to scale up the output power in a small and single-mode core for generating a single-mode output beam in a robust and reliable manner.

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Published date: October 2006
Venue - Dates: SPIE Optics East, 2006-10-01 - 2006-10-04


Local EPrints ID: 47838
PURE UUID: 0c445b84-cfaf-49d3-8728-f96daa0a9481
ORCID for Johan Nilsson: ORCID iD

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Date deposited: 13 Aug 2007
Last modified: 17 Jul 2017 15:02

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Author: Jayanta K. Sahu
Author: Jaesun Kim
Author: Seongwoo Yoo
Author: A.S. Webb
Author: Pascal Dupriez
Author: Yoonchan Jeong
Author: Johan Nilsson ORCID iD
Author: David N. Payne
Editor: Achyut K. Dutta
Editor: Yasutake Ohishi
Editor: Niloy K. Dutta
Editor: Jesper Moerk

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