Flat-gain L-band amplifier containing AlPO4 units in alumino-phospho-silicate erbium-doped fibers
Flat-gain L-band amplifier containing AlPO4 units in alumino-phospho-silicate erbium-doped fibers
We present a flat-gain single-stage L-band erbium-doped fiber amplifier (EDFA) with a gain ripple of ±0.7 dB from 1580 to 1615 nm, by using aluminophosphosilicate erbium-doped fiber (APS-EDF) with an estimated AlPO4 composition of 13.3 mol%. A series of APS-EDFs were fabricated with increasing AlPO4 and Er concentrations, while maintaining a low background loss of 0.031 ± 0.005 dB/m and preventing Er ion clustering. The spectroscopic study shows a slightly narrowing Er cross section and flattened emission cross-section spectrum in the L-band with more AlPO4, thus favoring the L-band amplification with an improved gain flatness. Also, the gain coefficient, gain saturation, and temperature-dependent gain characteristics were reported. A better temperature tolerance was observed with increasing AlPO4.
5579-5582
Zhai, Ziwei
95caa116-8203-4b74-aa67-b5d00cf14e6d
Halder, Arindam
9a8529b1-dce4-4d6c-964c-2fa2e8cf4d67
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
1 November 2023
Zhai, Ziwei
95caa116-8203-4b74-aa67-b5d00cf14e6d
Halder, Arindam
9a8529b1-dce4-4d6c-964c-2fa2e8cf4d67
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Zhai, Ziwei, Halder, Arindam and Sahu, Jayanta K.
(2023)
Flat-gain L-band amplifier containing AlPO4 units in alumino-phospho-silicate erbium-doped fibers.
Optics Letters, 48 (21), .
(doi:10.1364/OL.503833).
Abstract
We present a flat-gain single-stage L-band erbium-doped fiber amplifier (EDFA) with a gain ripple of ±0.7 dB from 1580 to 1615 nm, by using aluminophosphosilicate erbium-doped fiber (APS-EDF) with an estimated AlPO4 composition of 13.3 mol%. A series of APS-EDFs were fabricated with increasing AlPO4 and Er concentrations, while maintaining a low background loss of 0.031 ± 0.005 dB/m and preventing Er ion clustering. The spectroscopic study shows a slightly narrowing Er cross section and flattened emission cross-section spectrum in the L-band with more AlPO4, thus favoring the L-band amplification with an improved gain flatness. Also, the gain coefficient, gain saturation, and temperature-dependent gain characteristics were reported. A better temperature tolerance was observed with increasing AlPO4.
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ol-48-21-5579
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Accepted/In Press date: 2 October 2023
e-pub ahead of print date: 19 October 2023
Published date: 1 November 2023
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Publisher Copyright:
© 2023 Optica Publishing Group.
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Local EPrints ID: 483290
URI: http://eprints.soton.ac.uk/id/eprint/483290
ISSN: 0146-9592
PURE UUID: 3c9b7a64-2921-4065-9533-b56551c85fa4
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Date deposited: 27 Oct 2023 16:39
Last modified: 18 Mar 2024 03:58
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