Donodin, Aleksandr, Kiani, Leily, Noor, Shabnam and Forysiak, Wladek (2025). High gain and wideband hybrid optical amplifier using bismuth-doped and neodymium-doped fibers for E-band applications. Scientific Reports, 15 (1),
Abstract
A hybrid dual-stage bismuth-doped fiber and neodymium-doped fiber amplifier with high optical gain and extended bandwidth of operation in the E-band is demonstrated. The amplifier features a maximum gain of 43 dB, output power of 372 mW, and a minimum noise figure of 5.5 dB, and operation wavelength range of 1397–1472 nm, enabled by 153-m of bismuth-doped fiber and two 7-m lengths of neodymium-doped fiber. The demonstration shows the possibility of achieving improved gain bandwidth by combining fiber amplifiers with overlapping gain spectra in the E-band.
| Publication DOI: | https://doi.org/10.1038/s41598-025-05507-x |
|---|---|
| Divisions: | College of Engineering & Physical Sciences College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT) |
| Funding Information: | This work was supported by UK EPSRC grants EP/R035342/1 and EP/V000969/1. Prepared by LLNL under contract DE-AC52-07NA27344. LLNL-JRNL-860588. |
| Additional Information: | Copyright © The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/. |
| Publication ISSN: | 2045-2322 |
| Last Modified: | 21 Jul 2025 16:40 |
| Date Deposited: | 01 Jul 2025 16:24 |
| Full Text Link: | |
| Related URLs: |
https://www.nat ... 598-025-05507-x
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
| Published Date: | 2025-12 |
| Published Online Date: | 2025-07-01 |
| Accepted Date: | 2025-06-03 |
| Authors: |
Donodin, Aleksandr
(
0000-0002-5715-1438)
Kiani, Leily Noor, Shabnam Forysiak, Wladek (
0000-0001-5411-1193)
|
![[img]](https://publications.aston.ac.uk/style/images/fileicons/text.png)