Bi-doped fiber amplifiers in the E+S band with a high gain per unit length
Bi-doped fiber amplifiers in the E+S band with a high gain per unit length
We present a bismuth (Bi)-doped fiber amplifier (BDFA) operating in the 1400–1480 nm range using 35 m of Bi-doped germanosilicate fiber. A maximum gain of 23 dB for an input signal of −23dBm at 1440 nm has been achieved, which, to the best of our knowledge, is the highest gain per unit length of 0.66 dB/m reported for a BDFA. The 3 dB bandwidth is measured to be 40 nm (1415–1455 nm), and the gain coefficient is 0.2 dB/mW. A further temperature dependence study of BDFA across the temperature range of −60°C to 80°C also showed a negligible effect of temperature on the E + S band BDFA gain.
5635-5638
Wang, Siyi
5d2cda84-c3a3-45a0-b3af-7600f85c767a
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
Wang, Siyi
5d2cda84-c3a3-45a0-b3af-7600f85c767a
Zhai, Ziwei
95caa116-8203-4b74-aa67-b5d00cf14e6d
Halder, Arindam
9a8529b1-dce4-4d6c-964c-2fa2e8cf4d67
Sahu, Jayanta K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Wang, Siyi, Zhai, Ziwei, Halder, Arindam and Sahu, Jayanta K.
(2023)
Bi-doped fiber amplifiers in the E+S band with a high gain per unit length.
Optics Letters, 48 (21), .
(doi:10.1364/OL.503912).
Abstract
We present a bismuth (Bi)-doped fiber amplifier (BDFA) operating in the 1400–1480 nm range using 35 m of Bi-doped germanosilicate fiber. A maximum gain of 23 dB for an input signal of −23dBm at 1440 nm has been achieved, which, to the best of our knowledge, is the highest gain per unit length of 0.66 dB/m reported for a BDFA. The 3 dB bandwidth is measured to be 40 nm (1415–1455 nm), and the gain coefficient is 0.2 dB/mW. A further temperature dependence study of BDFA across the temperature range of −60°C to 80°C also showed a negligible effect of temperature on the E + S band BDFA gain.
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ol-48-21-5635
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Accepted/In Press date: 3 October 2023
e-pub ahead of print date: 23 October 2023
Published date: 1 November 2023
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© 2023 Optica Publishing Group.
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Local EPrints ID: 483283
URI: http://eprints.soton.ac.uk/id/eprint/483283
ISSN: 0146-9592
PURE UUID: a1452fc2-1aac-459f-ab63-12ac7e803d2a
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Date deposited: 27 Oct 2023 16:36
Last modified: 18 Mar 2024 03:58
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Author:
Siyi Wang
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