Data Set Title: CRYST^3. WP2, T2.2. All Fiber Laser System 
Data Set Author/s: 
Matteo Marchesini, Alma Mater Studiorum Università di Bologna, Dipartimento di Fisica e Astronomia, ORCID 0009-0001-9416-1758;
Michelangelo Dondi, Alma Mater Studiorum Università di Bologna, Dipartimento di Fisica e Astronomia, ORCID 0009-0006-9050-2881;
Leonardo Rossi Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e Microsistemi, ORCID  0000-0003-1042-6868;
Gabriele Bolognini Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e Microsistemi, ORCID 0000-0003-3682-1647;
Marco Prevedelli Alma Mater Studiorum Università di Bologna, Dipartimento di Fisica e Astronomia, ORCID 0000-0002-3136-2392;
Francesco Minardi Alma Mater Studiorum Università di Bologna, Dipartimento di Fisica e Astronomia, ORCID 0000-0001-6161-8881;
Data Set Contributor/s: 
Data Set Contact Person/s: 
Michelangelo Dondi Alma Mater Studiorum Università di Bologna, Dipartimento di Fisica e Astronomia, email michelangelo.dondi@unibo.it; 
Data Set License: this data set is distributed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license.
Publication Year: 2024
Project Info: CRYST^3, ATOM-LIGHT CRYSTALS IN PHOTONIC CRYSTALS, funded by European Union, Horizon 2020 Programme, Grant Agreement n. 964531. www.cryst3.com
Data set Contents
The data set consists of:
•	1 archive file, containing the files described below 
“CRYST^3_WP2_T2.2_AllFiberLaserSystem_20240410_v02.zip”
•	1 README file, i.e. this file
“CRYST^3_WP2_T2.2_AllFiberLaserSystem.rtf”

Data set Documentation
Abstract
The dataset contains all raw data used in the publication M. Marchesini et al. “All-fiber, near-infrared, laser system at 780~nm for atom cooling”, submitted yet unpublished, together with Julia scripts implementing the fits and generating the plots of the figures. This dataset is part of the Horizon 2020 CRYST^3 project. The publication aims at disseminating a new laser system for Rb-based quantum technologies. Its peculiarity is that it is a more compact and cheaper setup respect to commercial ones, due to the use of telecom-grade components. Other than the description of the setup, the publication presents its characterization, through the data reported here. The results are compatible with the expectations of having similar characteristics of commercial systems.

Content of the archive file: 

•	./CRYST^3_WP2_T2_2_1560_Beats_20240112:
o	CRYST^3_WP2_T2_2_CoolRep-1560-Oscilloscope-256us_20240112.CSV
contains column data of beatnote signal at 1560nm measured with an oscilloscope; the first column is time [s], while the second is the signal detected with a photodiode [V]
o	CRYST^3_WP2_T2_2_beatOsc-final.jl
Julia script for plotting and fitting data in this folder

•	./CRYST^3_WP2_T2_2_780_Beats_20240112:
o	CRYST^3_WP2_T2_2_CoolRep-780-Oscilloscope-256us_20240112.CSV     the first column is time [s], while the second is the signal detected with a photodiode [V]
o	CRYST^3_WP2_T2_2_CoolRep-780-beat-20M_20240112.dat               contains column data of beatnote signal at 780nm between Cooler and Repumper lasers; their frequency difference is set externally to be approx. 20Mhz; first column is the laser frequency [MHz], the second one is the data acquired with the oscilloscope [a.u., proportional to V reading], the third one is a Lorenzian fit of the second column [a.u.]
o	CRYST^3_WP2_T2_2_CoolRep-780-beat-40M_20240112.dat                          as the previous file, but with a frequency difference of approx.. 40MHz
o	CRYST^3_WP2_T2_2_beatOsc-final.jl
Julia script for plotting and fitting data in this folder
•	
•	./CRYST^3_WP2_T2_2_EDFA_OSA_20230221:
o	CRYST^3_WP2_T2_2_EDFA_OSA_20230221.jl 
Julia script for plotting and fitting data in this folder
o	CRYST^3_WP2_T2_2_OSA-1000_mA_20230221.dat
o	CRYST^3_WP2_T2_2_OSA-1200_mA_20230221.dat
o	CRYST^3_WP2_T2_2_OSA-1400_mA_20230221.dat
o	CRYST^3_WP2_T2_2_OSA-1600_mA_20230221.dat
o	CRYST^3_WP2_T2_2_OSA-1800_mA_20230221.dat
o	CRYST^3_WP2_T2_2_OSA-2000_mA_20230221.dat
column data of the intensity of the amplified spontaneous emission at different Erbium-Doped Fibered Amplifier (EDFA) pump current, measured with an Optical Spectrum Analyzer (OSA); first column is the wavelength [nm], second one is the measured optical power [mW]

•	./CRYST^3_WP2_T2_2_EDFA_OSA_20230922:
o	This dataset is analogous to the previous one, but data cover a wider range of wavelengths
o	CRYST^3_WP2_T2_2_EDFA_OSA_20230922.jl 
Julia script for plotting and fitting data in this folder
o	CRYST^3_WP2_T2_2_OSA1000 mA.dat
o	CRYST^3_WP2_T2_2_OSA1200 mA.dat
o	CRYST^3_WP2_T2_2_OSA1400 mA.dat
o	CRYST^3_WP2_T2_2_OSA1600 mA.dat
o	CRYST^3_WP2_T2_2_OSA1800 mA.dat
CRYST^3_WP2_T2_2_OSA2000 mA.dat 
column data of the intensity of the amplified spontaneous emission at different Erbium-Doped Fibered Amplifier (EDFA) pump current, measured with an Optical Spectrum Analyzer (OSA); first column is the wavelength [nm], second one is the measured optical power [mW]

•	./CRYST^3_WP2_T2_2_EDFA_RIN_20230303:
o	CRYST^3_WP2_T2_2_20230125
o	CRYST^3_WP2_T2_2_EDFA-0000b_20230303.dat
o	CRYST^3_WP2_T2_2_EDFA-1000b_20230303.dat
o	CRYST^3_WP2_T2_2_EDFA-1200b_20230303.dat
o	CRYST^3_WP2_T2_2_EDFA-1400b_20230303.dat
column data of the spectrum analyzer traces of EDFA intensity signal at different EDFA pump currents (0000b=0mA, 1000b=1000mA, etc); first column is noise frequency [Hz], the second one is the noise spectral density [dBm]
o	CRYST^3_WP2_T2_2_EDFA_RIN_20230303.jl 
Julia script for plotting and fitting data in this folder

•	./CRYST^3_WP2_T2_2_EDFA_RIN_20230303/CRYST^3_WP2_T2_2_20230125:
o	YE4140_6.csv
column data of the spectrum analyzer signal of the photodiode signal generated by the seed laser

•	./CRYST^3_WP2_T2_2_EDFA_RIN_LowFreq_20230330:
o	CRYST^3_WP2_T2_2_EDFA0000-FFT_20230330.dat
o	CRYST^3_WP2_T2_2_EDFA1000-FFT_20230330.dat
o	CRYST^3_WP2_T2_2_EDFA1200-FFT_20230330.dat
o	CRYST^3_WP2_T2_2_EDFA1400-FFT_20230330.dat
o	CRYST^3_WP2_T2_2_EDFA1600-FFT_20230330.dat 
column data of the FFT traces of EDFA intensity signal at different EDFA pump currents (0000=0mA, 1000=1000mA, etc), generated by the digital scope performing Fast Fourier Transform (FFT) of the signals; first column is noise frequency [Hz], the second one is the noise spectral density [dBm]
o	CRYST^3_WP2_T2_2_EDFA_RIN_LowFreq_20230330.jl
Julia script for plotting and fitting data in this folder

•	./CRYST^3_WP2_T2_2_I_Noise_LDD_20231220:
CRYST^3_WP2_T2_2_I_Noise_LDD_20231220.jl 
Julia script for plotting and fitting data in this folder
o	CRYST^3_WP2_T2_2_S-005-050-500.CSV
o	CRYST^3_WP2_T2_2_S005_01.CSV
o	CRYST^3_WP2_T2_2_S050_10.CSV
o	CRYST^3_WP2_T2_2_S500_100.CSV
column data of the transimpedance-amplified Laser Driver current noise spectrum at different frequency bands (005_01 is 1kHz BandWidth measured up to 5kHz, etc.) , generated by the spectrum analyser; first column is noise frequency [Hz], the second one is the noise spectral density [dBm]; S-005-050-500.CSV is a combination of all the other files.

•	./CRYST^3_WP2_T2_2_SHG_ConvEff_20230523:
o	CRYST^3_WP2_T2_2_SHG_temperature_v3.jl
Julia script containing data and plotting 

•	./CRYST^3_WP2_T2_2_SHG_PWRStab_New_20240313:
o	CRYST^3_WP2_T2_2_SHG_PWRStab-Allan_20240313.jl
o	CRYST^3_WP2_T2_2_SHG_PWRStab-Data_20240313.jl
Julia scripts for plotting and fitting data in this folder
o	CRYST^3_WP2_T2_2_SHG_PWR_Refl_PD_Gain0.CSV
o	CRYST^3_WP2_T2_2_SHG_PWR_trans_PWM.csv
o	CRYST^3_WP2_T2_2_SHG_Pol_data-Variances.csv
o	CRYST^3_WP2_T2_2_SHG_Pol_data.csv
column data of the power (PWR) and polarization (Pol) components (vertical/horizontal, respectively reflected/transmitted) of the frequency-doubled light, and their Allan variances; obtained with the digital scope, using a photodiode (PD) and a power meter (PWM); the first column is time [ms], the second the measured power [W] or PD tension [V] for the PWM and PD measurements respectively
o	CRYST^3_WP2_T2_2_allan_variance_analysis.py
o	CRYST^3_WP2_T2_2_Pol_temp_analysis.py
o	Python scripts for calculating allan variances of the data in this folder

•	./CRYST^3_WP2_T2_2_Seed_RIN_20230125:
o	CRYST^3_WP2_T2_2_Seed_RIN_20230125.jl
Julia script for plotting and fitting data in this folder
o	CRYST^3_WP2_T2_2_YE4140_6.csv
o	CRYST^3_WP2_T2_2_YE4140_7.csv
o	CRYST^3_WP2_T2_2_YE4140_8.csv
o	CRYST^3_WP2_T2_2_YE4140_9.csv
column data of the spectrum analyzer signal of the photodiode signal generated by the seed laser (serial number YE4140); first column is noise frequency [Hz], the second one is the noise spectral density [dBm]

File specifics:
	.CSV files:  field delimiter “,” (comma); UTF-8 encoding
	.DAT files: tab-separated fields;  UTF-8 encoding