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Ultra-broadband wavelength swept Tm-doped fiber laser

Ultra-broadband wavelength swept Tm-doped fiber laser
Ultra-broadband wavelength swept Tm-doped fiber laser
Wavelength-swept laser sources with broad wavelength tunability and narrow instantaneous linewidth in the two-micron band have potential applications in a number of areas, including spectroscopic characterisation and optical coherence tomography (OCT). The use of OCT for non-invasive investigation of paintings to provide the information necessary for effective restoration and to aid conservation is one example of an emerging application where operation in two-micron band brings the advantage of increased penetration depth due to lower loss in commonly used pigments compared to the situation at near-infrared wavelengths. Tm-doped silica fibre lasers provide an efficient way to access the relevant wavelength region due to the wide emission line that extends from ~1700 nm to ~2100 nm. Unfortunately, wavelength tuning across the entire emission band with a single fibre gain stage is extremely difficult due to the combination of varying quasi-three-level character as a function of wavelength and gain saturation due to short wavelength amplified spontaneous emission. In order to access the full emission bandwidth potential of Tm-doped fibres, a different approach must be employed with two or more fibre gain stages and with each gain stage tailored to provide emission in complementary bands.
Tokurakawa, M.
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Daniel, J.M.O.
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Cheung, S.
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Liang, H.
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Clarkson, W.A.
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Tokurakawa, M.
0de3bdd5-e313-4f27-85c1-a2572ac17b8b
Daniel, J.M.O.
6196e732-cd6c-43a7-bc9f-bc4f99e72c23
Cheung, S.
bb03c00e-0b14-4b45-8a3f-1129aeb8ec2a
Liang, H.
a67d00dd-b439-4806-9ac0-ac7644732b4b
Clarkson, W.A.
3b060f63-a303-4fa5-ad50-95f166df1ba2

Tokurakawa, M., Daniel, J.M.O., Cheung, S., Liang, H. and Clarkson, W.A. (2013) Ultra-broadband wavelength swept Tm-doped fiber laser. 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, Munich, Germany. 12 - 16 May 2013. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Wavelength-swept laser sources with broad wavelength tunability and narrow instantaneous linewidth in the two-micron band have potential applications in a number of areas, including spectroscopic characterisation and optical coherence tomography (OCT). The use of OCT for non-invasive investigation of paintings to provide the information necessary for effective restoration and to aid conservation is one example of an emerging application where operation in two-micron band brings the advantage of increased penetration depth due to lower loss in commonly used pigments compared to the situation at near-infrared wavelengths. Tm-doped silica fibre lasers provide an efficient way to access the relevant wavelength region due to the wide emission line that extends from ~1700 nm to ~2100 nm. Unfortunately, wavelength tuning across the entire emission band with a single fibre gain stage is extremely difficult due to the combination of varying quasi-three-level character as a function of wavelength and gain saturation due to short wavelength amplified spontaneous emission. In order to access the full emission bandwidth potential of Tm-doped fibres, a different approach must be employed with two or more fibre gain stages and with each gain stage tailored to provide emission in complementary bands.

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More information

e-pub ahead of print date: 2013
Additional Information: CJ-7.5
Venue - Dates: 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, Munich, Germany, 2013-05-12 - 2013-05-16
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 366449
URI: https://eprints.soton.ac.uk/id/eprint/366449
PURE UUID: a86586c7-0a43-4a07-ade1-5509e21b4691

Catalogue record

Date deposited: 30 Jun 2014 11:22
Last modified: 11 Jul 2019 16:31

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Contributors

Author: M. Tokurakawa
Author: J.M.O. Daniel
Author: S. Cheung
Author: H. Liang
Author: W.A. Clarkson

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