Saturated Spectroscopy of HCN

This work brings the preliminary results of saturated absorption spectroscopy of Hydrogen Cyanide gas (H
¹³
C
¹⁴
N), a promising optical frequency reference medium for telecommunication C-band wavelengths. We optimized the experimental system based on parameters for detection of the selected hyperfine transition in low pressure H
¹³
C
¹⁴
N absorption cell and observed and investigated the unwanted effect of degradation of the saturated spectroscopy signal due to H
¹³
C
¹⁴
N molecules permanent dipole moment.