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Table 2 Experimental conditions. (LPF: low pass filter)

From: Suppression of residual amplitude modulation appeared in commercial electro-optic modulator to improve iodine-frequency-stabilized laser diode using frequency modulation spectroscopy

Carrier wavelength 632.9919 nm   
I2 cell cold-finger temperature 15 °C LIA1 LPF cutoff frequency 100 Hz
Room temperature 20 ± 0.5 °C LIA1 sensitivity 5 mV
Room pressure 100,855 ± 10 Pa LIA2 LPF cutoff frequency 100 Hz
EOM modulation frequency 1.5 MHz LIA2 sensitivity 100 mV
EOM modulation index 3.768 rad AOM frequency shift 80 MHz
AC voltage applied to EOM amplifier 3.748 VPP AOM chopping frequency 6.4 kHz
DC-offset voltage range applied to EOM amplifier ±3 V PID parameters for frequency stabilization KP = 0.01, KI = 0.015, KD = 0.0075
EOM amplifier gain 40 PID parameters for RAM suppression KP = 0.2, KI = 0.025, KD = 0.03
ECLD scanning range 1 GHz
ECLD scanning time 100 s