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Opportunities in high-power fiber lasers

Opportunities in high-power fiber lasers
Opportunities in high-power fiber lasers
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.
7pp
Sahu, Jayanta K.
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Kim, Jaesun
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Yoo, Seongwoo
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Webb, A.S.
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Codemard, Christophe
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Dupriez, Pascal
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Jeong, Yoonchan
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Nilsson, Johan
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Richardson, David J.
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Payne, David N.
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Dutta, Achyut K.
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Ohishi, Yasutake
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Dutta, Niloy K.
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Moerk, Jesper
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Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Kim, Jaesun
43d08112-4802-4f2b-b21a-8f2ba07ec4ef
Yoo, Seongwoo
dcabaaed-490b-4024-8271-ea8048653faf
Webb, A.S.
a0421d45-fb98-4dbe-9440-62847793d099
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Dupriez, Pascal
d5387d45-7104-41af-b7b8-86c6e59a1e97
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Nilsson, Johan
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Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Payne, David N.
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Dutta, Achyut K.
d19e02e5-929b-4e02-84f3-68294edfcebd
Ohishi, Yasutake
420f9705-6e48-4fe3-8d33-e5aac1a91bb8
Dutta, Niloy K.
8d2175eb-319c-4ad7-a6a3-238ae5145254
Moerk, Jesper
22f26121-53eb-4459-98d0-ef87a51c3afb

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.) SPIE Optics East, Boston, USA. 01 - 04 Oct 2006. 7pp . (doi:10.1117/12.687497).

Record type: Conference or Workshop Item (Other)

Abstract

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, Boston, USA, 2006-10-01 - 2006-10-04

Identifiers

Local EPrints ID: 47838
URI: http://eprints.soton.ac.uk/id/eprint/47838
PURE UUID: 0c445b84-cfaf-49d3-8728-f96daa0a9481
ORCID for Jayanta K. Sahu: ORCID iD orcid.org/0000-0003-3560-6152
ORCID for Johan Nilsson: ORCID iD orcid.org/0000-0003-1691-7959
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 13 Aug 2007
Last modified: 16 Mar 2024 03:20

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Contributors

Author: Jayanta K. Sahu ORCID iD
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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