This folder contains data presented in Sub-kHz linewidth lasers for Quantum Information Processing with Rydberg atoms, 
by R. Legaie, C.J. Picken and J.D. Pritchard

FILE FORMAT DESCRIPTION:


* fig3_a.csv: Data for Fig. 3(a) : Determination of the temperature Tc for zero-CTE, using a beatnote between Qubit A and a second independent laser :
<Temperature (Celsius)>,<Beatnote frequency (MHz)>, <Beatnote frequency error>

* fig3_b.csv: Data for Fig. 3(b) : Free spectral range determination by locking the laser to adjacent longitudinal cavity modes
<Mode number>,<Beatnote frequency (MHz)>, <Beatnote frequency error>

* fig4_a.csv: Data for Fig. 4(a) :In-loop error signal for Rydberg B
< Frequency relative to PDH frequency >,<Power spectrum (dB)>

* fig4_b.csv: Data for Fig. 4(b) : Beatnote between Rydberg A & B, locked to consecutive TEM00 and TEM 01 modes
< Frequency relative to central frequency 440 MHz>,<Power spectrum (dB)>

* fig4_c.csv: Data for Fig. 4(c) : Linearized power spectrum of the beatnote central peak
< Frequency relative to central frequency 440 MHz>,<Normalized power spectrum>,<Normalized power spectrum fit>

* fig5_b.csv: Data for Fig. 5(b) : EIT transmission peak for 50 S1/2 Rydberg state
<Probe laser detuning (MHz)>,<Transmission>,<Transmission Error>,<EIT resonance fit>,>,<Residuals : sigma>,

* fig5_c.csv: Data for Fig. 5(c) : Coupling laser detuning as a function of the coupling laser offset frequency
<Coupling laser offset frequency : nuOffset (MHz)>,<Coupling laser detuning (MHz)>,<Coupling laser detuning Error (MHz)>,

* fig6.csv: Data for Fig. 6 : EIT resonance frequency drift recorded over 20 days
<Time(days)>,<Coupling laser offset frequency corresponding to EIT resonance : nuOffset(MHz)>,<nuOffset Error (MHz)>