READ ME File For 'Dataset for BDF E-S band paper_AH'

Dataset DOI: https://doi.org/10.5258/SOTON/D3635

Date that the file was created: 08, 2025

-------------------
GENERAL INFORMATION
-------------------

ReadMe Author: Zahra Kakaei, University of Southampton [https://orcid.org/0000-0001-7856-3194]

Date of data collection: Jan 2025

Information about geographic location of data collection: United Kingdom

--------------------------
SHARING/ACCESS INFORMATION
-------------------------- 

Licenses/restrictions placed on the data, or limitations of reuse: CC BY , Open

Recommended citation for the data:

This dataset supports the publication:
AUTHORS: Arindam Halder, Zahra Kakaei
TITLE: Spectroscopic Characterization of Bismuth Active Centres in Germanosilicate Optical Fibers: Impact of Ge Concentration on E–S Band Amplifier Gain
JOURNAL: Journal of Luminescence
PAPER DOI IF KNOWN: https://doi.org/10.1016/j.jlumin.2026.121844



--------------------
DATA & FILE OVERVIEW
--------------------

This dataset is about the data of the plot for spectroscopic study on the role of GeO2 on Bismuth active centres (BACs) in achieving high E+S band gain.

This dataset contains:

[One xlxs file with ten sheets for the figures in the paper]

Figure 1 (sheet 1): [Normalised FRIP and SEM plots for BGSF-3]: column data for the line plots of Normalised dn and Normalised Intensity vs Radius.

Figure 2 (sheet 2): [Absorption spectra (a) for BGSF-1 to 7, and (b) for BGSF-3, 5, 8, 9; Background losses (c) for BGSF-1 to 7, and (d) for BGSF-3, 5, 8, 9]: column data for the line plots of absorption vs wavelength.


Figure 3 (sheet 3): [Emission spectra for BGSF-1 to 7 using pump at (a) 450 nm, (c) 792 nm, and (e) 1310 nm; and emission for BGSF-3, 5, 8 and 9 under (b) 450 nm, (d) 792 nm and (f) 1310 nm excitations]: column data for the line plots of Intensity vs Wavelength.

Figure 5 (sheet 4): [(a), (b) E-S band G and (c), (d) NF for BGSFs 1-7 (except BGSF-6)]: column data for the line plots of Gain vs Wavelength.

Figure 6 (sheet 5): [(a) variation of E-S band G and NF; (b) unsaturable loss and (c) optimised device length with GeO2 concentration of the BGSFs (1 to 7, except 6)]: column data for the line plots of Gain and Unsaturable loss at 1333nm and Optimised device length vs GeO2 concentration.

Figure 7 (sheet 6): [(a) Normalised 400-600 nm absorption band; (b) variation of 455nm/457 nm and 486 nm absorption peak along with 426 nm peak in BGSFs (BGSF-1 to 7) with GeO2 concentration obtained from Fig. 7a; (c) Gaussian multipeak fitting for BGSF-3 in 350-600 nm to track 390 nm, 426 nm, 455 nm and 486 nm absorption bands from true absorption spectra]: column data for the line plots of Normalised Bi Abs at 426nm and Normalised Bi absorption at 426nm and Abs (including FittedCurves) vs Wavelength and GeO2 concentration.

Figure 8 (sheet 7): [(a) Normalised 700-1050 nm absorption band; (b) variation of 875 nm and 930 nm absorption peak along with 820 nm peak in BGSFs (BGSF-1 to 7) with GeO2 concentration obtained from Fig. 8a; (c) Gaussian multipeak fitting for BGSF-3 in 700-1050 nm to track 820 nm, 875 nm, 930 nm absorption bands from true absorption spectra]: column data for the line plots of Normalised Bi Abs at 820nm and Normalised Bi absorption at 820nm and and Abs (including FittedCurves) vs Wavelength and GeO2 concentration.


Figure 9 (sheet 8): [(a) Normalised 1100-1800 nm absorption band; (b) variation of 1625 nm absorption peak along with 1385 nm peak in BGSFs (BGSF-1 to 7) with GeO2 concentration obtained from Fig. 9a; (c) Gaussian multipeak fitting for BGSF-3 in 1100-1800 nm to track 1353 nm, 1404 nm, 1625 nm absorption bands from true absorption spectra]: column data for the line plots of Normalised Bi Abs at 1385nm and Abs (including FittedCurves) vs  Wavelength and GeO2 concentration.


Figure 10 (sheet 9): [(a) Normalised emission spectra for BGSF-1 to 7 under 450 nm excitation, (b) variation of 827 nm, 940 nm, 1400 nm and 1630 nm emissions with GeO2 concentration obtained from Fig. 10a and (c) normalised emission spectra for BGSF-1 to 7 under 792 nm excitation, (b) variation of 1408 nm and 1638 nm emissions with GeO2 concentration obtained from Fig. 10c.]: column data for the line plots of Normalised intensity Wavelength and GeO2 concentration.

Figure 11 (sheet 10): [(a) Variation of device length with Bi concentration in different GeO2 content fibers, (b) variation of device length with Bi concentration for fixed GeO2 content fibers]: column data for the line plots of Optimised device length vs Bi abs at 1385nm.


Dataset available under a CC BY licence.