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Experimental demonstration of enhancing pump absorption rate in cladding-pumped ytterbium-doped fiber lasers using pump-coupling long-period fiber gratings

Experimental demonstration of enhancing pump absorption rate in cladding-pumped ytterbium-doped fiber lasers using pump-coupling long-period fiber gratings
Experimental demonstration of enhancing pump absorption rate in cladding-pumped ytterbium-doped fiber lasers using pump-coupling long-period fiber gratings
A long-period fiber grating (LPFG) was inscribed in a single-mode fiber and was spliced with a ytterbium (Yb)-doped double-clad fiber in order to couple pump radiation of the inner cladding into the core in a cladding-pumped fiber laser. The use of an LPFG permits a partial core-pumping scheme in a cladding pumping fiber laser because a portion of the pump radiation can be coupled to the core by LPFG. The enhancement of the pump absorption of a Yb-doped cladding-pumped fiber laser as the result of pump coupling by LPFG was 35%, and the maximal output power increased by up to 55% when a 20W pump source is used.
1041-1135
700-702
Baek, Seungin
5ed7385c-2343-4011-907e-550efb61ace5
Roh, Sookyoung
6610ed93-4ec7-4a8c-85bf-8c91eccb6cff
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Lee, Byoungho
43dfa9db-b2d8-4a26-9594-2d0e484f8388
Baek, Seungin
5ed7385c-2343-4011-907e-550efb61ace5
Roh, Sookyoung
6610ed93-4ec7-4a8c-85bf-8c91eccb6cff
Jeong, Yoonchan
94ab6f5b-7623-4061-8598-8de2e7aa751e
Lee, Byoungho
43dfa9db-b2d8-4a26-9594-2d0e484f8388

Baek, Seungin, Roh, Sookyoung, Jeong, Yoonchan and Lee, Byoungho (2006) Experimental demonstration of enhancing pump absorption rate in cladding-pumped ytterbium-doped fiber lasers using pump-coupling long-period fiber gratings. IEEE Photonics Technology Letters, 18 (5), 700-702. (doi:10.1109/LPT.2006.871158).

Record type: Article

Abstract

A long-period fiber grating (LPFG) was inscribed in a single-mode fiber and was spliced with a ytterbium (Yb)-doped double-clad fiber in order to couple pump radiation of the inner cladding into the core in a cladding-pumped fiber laser. The use of an LPFG permits a partial core-pumping scheme in a cladding pumping fiber laser because a portion of the pump radiation can be coupled to the core by LPFG. The enhancement of the pump absorption of a Yb-doped cladding-pumped fiber laser as the result of pump coupling by LPFG was 35%, and the maximal output power increased by up to 55% when a 20W pump source is used.

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Published date: 2006

Identifiers

Local EPrints ID: 46114
URI: https://eprints.soton.ac.uk/id/eprint/46114
ISSN: 1041-1135
PURE UUID: 812d63a8-3218-40cb-9a39-66c1470b8a1a

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Date deposited: 22 May 2007
Last modified: 13 Mar 2019 21:03

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