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Optimising Tm-doped silica fibres for high lasing efficiency

Optimising Tm-doped silica fibres for high lasing efficiency
Optimising Tm-doped silica fibres for high lasing efficiency
Two-micron lasers are of great interest for a range of applications, from spectroscopy to polymer machining and laser surgery, as well as being an important stepping stone for wavelength generation further into the mid infra-red band. Tm-doped silica fibre lasers are especially attractive as they are capable of operating at wavelengths from below 1700nm to more than 2100nm, and can be pumped by commercially available high power laser diodes operating around ~793nm. Moreover, by optimising the dopant concentration within the Tm fibre core a beneficial two-for-one cross-relaxation process can be exploited allowing efficiencies far-above the quantum limit for 793nm pumped Tm fibre lasers [1]. Indeed, efforts to optimise the core composition to enhance this process have been the subject of many studies, but as yet the best slope efficiencies reported for high power cladding-pumped Tm doped silica fibre lasers remain well below the theoretical maximum (~80%).
Shardlow, P.C.
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Jain, D.
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Parker, Richard
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Sahu, J.K.
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Clarkson, W.A.
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Shardlow, P.C.
9ca17301-8ae7-4307-8bb9-371df461520c
Jain, D.
787e5045-8862-46ba-b15e-82c2fe60495f
Parker, Richard
b052ca4d-b6c7-4fdd-a2f9-45032f0ff13f
Sahu, J.K.
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Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Shardlow, P.C., Jain, D., Parker, Richard, Sahu, J.K. and Clarkson, W.A. (2015) Optimising Tm-doped silica fibres for high lasing efficiency. CLEO/Europe-EQEC '15, Germany. 21 - 25 Jun 2015. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Two-micron lasers are of great interest for a range of applications, from spectroscopy to polymer machining and laser surgery, as well as being an important stepping stone for wavelength generation further into the mid infra-red band. Tm-doped silica fibre lasers are especially attractive as they are capable of operating at wavelengths from below 1700nm to more than 2100nm, and can be pumped by commercially available high power laser diodes operating around ~793nm. Moreover, by optimising the dopant concentration within the Tm fibre core a beneficial two-for-one cross-relaxation process can be exploited allowing efficiencies far-above the quantum limit for 793nm pumped Tm fibre lasers [1]. Indeed, efforts to optimise the core composition to enhance this process have been the subject of many studies, but as yet the best slope efficiencies reported for high power cladding-pumped Tm doped silica fibre lasers remain well below the theoretical maximum (~80%).

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Published date: June 2015
Venue - Dates: CLEO/Europe-EQEC '15, Germany, 2015-06-21 - 2015-06-25
Organisations: Optoelectronics Research Centre, Chemistry

Identifiers

Local EPrints ID: 379503
URI: https://eprints.soton.ac.uk/id/eprint/379503
PURE UUID: 9742adc6-0045-4b48-9f7f-42711995318a
ORCID for P.C. Shardlow: ORCID iD orcid.org/0000-0003-0459-0581

Catalogue record

Date deposited: 23 Jul 2015 13:48
Last modified: 06 Jun 2018 12:29

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