Two-stage linearly-polarized ytterbium-doped fibre superfluorescent source with 106 W output power
Two-stage linearly-polarized ytterbium-doped fibre superfluorescent source with 106 W output power
High power and high brightness broadband superfluorescent sources have applications in a number of areas including sensing, spectroscopy, medical imaging and metrology. One attractive way to generate broadband output is via the process of amplified spontaneous emission (ASE) in a rare-earth doped fibre. Fibre-based superfluorescent sources offer high efficiency, a wide range of operating wavelengths by employing different rare earth dopants and, via cladding pumping, the prospect of high output power. For some applications, the requirement for high power is also accompanied by the need for a linearly-polarised single-spatial-mode output beam. This combination of operating characteristics is more difficult to achieve and places extra demands on the fibre design and overall system design. parameter of ~1.1. The output from the seed was passed through two Faraday isolators with a combined isolation of ~-60dB to strongly attenuate any feedback from the power amplifier stage. This reduced the ASE power to ~840 mW due mainly to the polarization-related loss of the isolators.
Wang, P.
df957848-e6e4-45f0-ba01-2d966a30aa67
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
June 2007
Wang, P.
df957848-e6e4-45f0-ba01-2d966a30aa67
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2
Wang, P. and Clarkson, W.A.
(2007)
Two-stage linearly-polarized ytterbium-doped fibre superfluorescent source with 106 W output power.
Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC) 2007, , Munich, Germany.
17 - 22 Jun 2007.
1 pp
.
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Conference or Workshop Item
(Paper)
Abstract
High power and high brightness broadband superfluorescent sources have applications in a number of areas including sensing, spectroscopy, medical imaging and metrology. One attractive way to generate broadband output is via the process of amplified spontaneous emission (ASE) in a rare-earth doped fibre. Fibre-based superfluorescent sources offer high efficiency, a wide range of operating wavelengths by employing different rare earth dopants and, via cladding pumping, the prospect of high output power. For some applications, the requirement for high power is also accompanied by the need for a linearly-polarised single-spatial-mode output beam. This combination of operating characteristics is more difficult to achieve and places extra demands on the fibre design and overall system design. parameter of ~1.1. The output from the seed was passed through two Faraday isolators with a combined isolation of ~-60dB to strongly attenuate any feedback from the power amplifier stage. This reduced the ASE power to ~840 mW due mainly to the polarization-related loss of the isolators.
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Published date: June 2007
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Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC) 2007, , Munich, Germany, 2007-06-17 - 2007-06-22
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Local EPrints ID: 47788
URI: http://eprints.soton.ac.uk/id/eprint/47788
PURE UUID: 9f80b4c9-f60d-47c7-92f9-9bbf6e885dee
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Date deposited: 10 Aug 2007
Last modified: 15 Mar 2024 09:36
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Author:
P. Wang
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