READ ME File For '1.45–1.49-µm tunable thulium-doped silica fiber laser quasi-continuous-wave cladding-pumped at 0.79 µm'

Dataset DOI: https://doi.org/10.5258/SOTON/D3410

Date that the file was created: 08, 2025

CC-BY licence

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GENERAL INFORMATION
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ReadMe Author: HOU CHANGSHUN, University of Southampton [OPTIONAL add ORCID ID]

Date of data collection:16/07/2025

Information about geographic location of data collection: University of Southampton, B46, lab 4009.

Related projects:

LITECS

Directly diode-pumped ultra high power fiber lasers for single fiber and beam combined directed energy

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SHARING/ACCESS INFORMATION
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Licenses/restrictions placed on the data, or limitations of reuse:

Recommended citation for the data:

This dataset supports the publication:

AUTHORS:Changshun Hou, Ziwei Zhai, Niloptal Choudhury, Tom Harris, Jayanta k. Sahu, and Johan Nilsson.

TITLE:1.45–1.49-µm tunable thulium-doped silica fiber laser quasi-continuous-wave cladding-pumped at 0.79 µm

JOURNAL: Optics & Laser Technology

PAPER DOI IF KNOWN: https://doi.org/10.1016/j.optlastec.2025.113710

Links to other publicly accessible locations of the data:

Links/relationships to ancillary or related data sets: 

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DATA & FILE OVERVIEW
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This dataset is about the data of the plot for tunable 14xx nm laser-related performance (output power, optical tunable spectrum, time domain).

This dataset contains:

[Five xlxs files for the figures in the paper]

Figure 3: [Cladding absorption spectrum and QCW pump spectrum]: Measured white-light (“cold”) cladding transmission spectrum in 15 m of TDF (resolution bandwidth (RBW) 0.1 nm) and Combined QCW spectrum of all three 0.79 µm diode lasers at full pump power.

Figure 4: [Instantaneous Output power of 1464 nm TDFL and emission spectrum]: Instantaneous TDFL output power vs. launched instantaneous pump power. Blue dots: power at 1.9-μm; red dots: power at 1464 nm; black dots: total output power. (b) 1464 nm output spectrum at full power (RBW: 0.2 nm).

Figure 5:[Tunable output spectrum and power at different central wavelength, and also the core propagation loss]: Output power as a function of tuned wavelength and core propagation loss as a function of wavelength. Bottom graph: TDFL output spectra with 0.5-nm RBW at different tuned wavelengths. Gain fiber length 24 m.


Figure 6: [length dependence of slope efficiency and output power]: Measured slope efficiency and output power as a function of the length of TDF.


Figure 7: [Time domain of Q-switching traces]: Temporal trace of the pulses at maximum pump power;


This dataset contains:

METHODOLOGICAL INFORMATION
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The csv data was downloaded from Keysight InfiniiVision MSOX3104G oscilloscope.

Description of methods used for collection/generation of data: The data of time domain was downloaded from Keysight InfiniiVision MSOX3104G oscilloscope. The optical power was from Ophir power meter; The Optical spectrum was from AQ6317B.

Methods for processing the data: download the data from oscilloscope and Optical spectrum analyzer. Then you can plot Y vs X figure using software such as MATLAB, python or Origin.

Software- or Instrument-specific information needed to interpret the data, including software and hardware version numbers: Keysight InfiniiVision MSOX3104G oscilloscope

Standards and calibration information, if appropriate:

Environmental/experimental conditions: University of Southampton, Building 46, Lab 4009, room temperature.

Describe any quality-assurance procedures performed on the data:

People involved with sample collection, processing, analysis and/or submission: Changshun Hou