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Ultra-broadband bismuth-doped fiber amplifier covering a 115-nm bandwidth in the O and E Bands

Ultra-broadband bismuth-doped fiber amplifier covering a 115-nm bandwidth in the O and E Bands
Ultra-broadband bismuth-doped fiber amplifier covering a 115-nm bandwidth in the O and E Bands
In this article, we experimentally demonstrate an all-fiber optical amplifier using Bi-doped phosphosilicate fiber (BPSF) operating in both the O-band and the E-band, providing >20 dB gain from 1345 to 1460 nm for an input signal power of −23 dBm. A maximum gain of 31 dB with a noise figure (NF) of 4.8 dB was achieved at 1420 nm for −23 dBm input signal, whereas for an input signal power of −10 dBm it was 26 dB with a NF of 5.3 dB. The in-band OSNR of the proposed Bi-doped fiber amplifier (BDFA) was >22 dB from 1345 to 1460 nm for a −23 dBm input signal. The gain coefficient was found to be 0.04 dB/mW for a −23 dBm input signal. Also, the temperature dependent gain and NF performance of the BDFA within −40 to +60 °C were characterized. The temperature-dependent-gain (TDG) coefficient for a −23 dBm input signal was found to be −0.015 dB/°C at a signal wavelength of 1420 nm where the BDFA gain is maximum, while for an input signal power of −10 dBm it was −0.01 dB/°C at 1420 nm. The TDG coefficient of the proposed BDFA from 1350–1460 nm was in the range from −0.079 to −0.008 dB/°C. The BDFA gain and NF performance were also measured and compared using BPSFs with different unsaturable loss (UL) characteristics.
0733-8724
795-800
Wang, Yu
e49a2e5a-0771-4f38-84a7-67a1bd571898
Thipparapu, Naresh K.
1beee7b1-d665-4da7-bd05-6f2755b196e0
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Wang, Yu
e49a2e5a-0771-4f38-84a7-67a1bd571898
Thipparapu, Naresh K.
1beee7b1-d665-4da7-bd05-6f2755b196e0
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2

Wang, Yu, Thipparapu, Naresh K., Richardson, David and Sahu, Jayanta (2020) Ultra-broadband bismuth-doped fiber amplifier covering a 115-nm bandwidth in the O and E Bands. Journal of Lightwave Technology, 39 (3), 795-800. (doi:10.1109/JLT.2020.3039827).

Record type: Article

Abstract

In this article, we experimentally demonstrate an all-fiber optical amplifier using Bi-doped phosphosilicate fiber (BPSF) operating in both the O-band and the E-band, providing >20 dB gain from 1345 to 1460 nm for an input signal power of −23 dBm. A maximum gain of 31 dB with a noise figure (NF) of 4.8 dB was achieved at 1420 nm for −23 dBm input signal, whereas for an input signal power of −10 dBm it was 26 dB with a NF of 5.3 dB. The in-band OSNR of the proposed Bi-doped fiber amplifier (BDFA) was >22 dB from 1345 to 1460 nm for a −23 dBm input signal. The gain coefficient was found to be 0.04 dB/mW for a −23 dBm input signal. Also, the temperature dependent gain and NF performance of the BDFA within −40 to +60 °C were characterized. The temperature-dependent-gain (TDG) coefficient for a −23 dBm input signal was found to be −0.015 dB/°C at a signal wavelength of 1420 nm where the BDFA gain is maximum, while for an input signal power of −10 dBm it was −0.01 dB/°C at 1420 nm. The TDG coefficient of the proposed BDFA from 1350–1460 nm was in the range from −0.079 to −0.008 dB/°C. The BDFA gain and NF performance were also measured and compared using BPSFs with different unsaturable loss (UL) characteristics.

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Ultra-broadband Bismuth-Doped Fiber Amplifier Covering a 115-nm Bandwidth in the O and E Bands - Accepted Manuscript
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Accepted/In Press date: 28 October 2020
e-pub ahead of print date: 24 November 2020

Identifiers

Local EPrints ID: 446235
URI: http://eprints.soton.ac.uk/id/eprint/446235
ISSN: 0733-8724
PURE UUID: bae5bd44-0928-4af1-877b-888e9630d11b
ORCID for David Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for Jayanta Sahu: ORCID iD orcid.org/0000-0003-3560-6152

Catalogue record

Date deposited: 29 Jan 2021 17:33
Last modified: 22 Nov 2021 02:47

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Contributors

Author: Yu Wang
Author: Naresh K. Thipparapu
Author: Jayanta Sahu ORCID iD

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