Ultra-short wavelength operation of thulium doped fiber amplifiers and lasers
Ultra-short wavelength operation of thulium doped fiber amplifiers and lasers
We fabricate and characterize a germanium/thulium (Ge/Tm) co-doped silica fiber in order to enhance the gain at the short wavelength edge of the thulium emission band (i.e. 1620-1660 nm). The Ge/Tm doped fiber shows an intrinsic blue-shifted absorption/emission cross-section compared to aluminum/thulium (Al/Tm) co-doped fiber, which greatly improves the short wavelength amplification and has enabled us to further extend the shortest wavelength of emission towards 1600 nm. Using this glass fiber composition, we have demonstrated both a silica-based thulium doped fiber amplifier (TDFA) in the 1628-1655 nm waveband and a tunable thulium-doped fiber laser (TDFL) capable of accessing the telecom U-band wavelength region. These results represent by far the shortest amplifier/laser wavelengths reported to-date from TDFAs/TDFLs.
Thulium fiber, amplifier
36699-36707
Chen, Shaoxiang
c7795b39-9ec3-4156-b3d7-73822fd31809
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Alam, Shaif-Ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Sidharthan, Raghuraman
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Ho, Daryl
7c24891a-418c-446f-b0e1-74b416fde08f
Yoo, Seongwoo
dcabaaed-490b-4024-8271-ea8048653faf
Daniel, Jae M.O.
5ae7a93a-bcb9-4ee9-8c64-ea5babc6044a
3 December 2019
Chen, Shaoxiang
c7795b39-9ec3-4156-b3d7-73822fd31809
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Alam, Shaif-Ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Sidharthan, Raghuraman
3a64468c-0706-4cd6-8fab-2fbe65392c4b
Ho, Daryl
7c24891a-418c-446f-b0e1-74b416fde08f
Yoo, Seongwoo
dcabaaed-490b-4024-8271-ea8048653faf
Daniel, Jae M.O.
5ae7a93a-bcb9-4ee9-8c64-ea5babc6044a
Chen, Shaoxiang, Jung, Yongmin, Alam, Shaif-Ul, Richardson, David, Sidharthan, Raghuraman, Ho, Daryl, Yoo, Seongwoo and Daniel, Jae M.O.
(2019)
Ultra-short wavelength operation of thulium doped fiber amplifiers and lasers.
Optics Express, 27 (25), .
(doi:10.1364/OE.27.036699).
Abstract
We fabricate and characterize a germanium/thulium (Ge/Tm) co-doped silica fiber in order to enhance the gain at the short wavelength edge of the thulium emission band (i.e. 1620-1660 nm). The Ge/Tm doped fiber shows an intrinsic blue-shifted absorption/emission cross-section compared to aluminum/thulium (Al/Tm) co-doped fiber, which greatly improves the short wavelength amplification and has enabled us to further extend the shortest wavelength of emission towards 1600 nm. Using this glass fiber composition, we have demonstrated both a silica-based thulium doped fiber amplifier (TDFA) in the 1628-1655 nm waveband and a tunable thulium-doped fiber laser (TDFL) capable of accessing the telecom U-band wavelength region. These results represent by far the shortest amplifier/laser wavelengths reported to-date from TDFAs/TDFLs.
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oe-27-25-36699
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Submitted date: 3 September 2019
Accepted/In Press date: 3 December 2019
Published date: 3 December 2019
Keywords:
Thulium fiber, amplifier
Identifiers
Local EPrints ID: 433801
URI: http://eprints.soton.ac.uk/id/eprint/433801
ISSN: 1094-4087
PURE UUID: d71f224c-35b1-4d64-81ab-ab69a6abb144
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Date deposited: 04 Sep 2019 16:30
Last modified: 17 Mar 2024 02:36
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Contributors
Author:
Shaoxiang Chen
Author:
Raghuraman Sidharthan
Author:
Daryl Ho
Author:
Seongwoo Yoo
Author:
Jae M.O. Daniel
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