STABILISED DOUBLE-MODE He-Ne/CH LASER Russian patent published in 2009 - IPC H01S3/13 

FIELD: electronics.

SUBSTANCE: invention is attributed to the field of optical maser frequency standards. It has been offered to make stabilised double-mode He-Ne/CH₄ laser as single glass ceramic monoblock containing linear Fabty-Perot resonator of broken structure. Channels filled with absorbing (methane) and gain (He-Ne) mediums are made along optical axis. Gas-discharge channel with gain medium contains three electrodes. All optical components are installed on optical contact. Automatic frequency control system is made capable to independently regulate currents between electrode pairs of gain medium.

EFFECT: resonator passive stability improvement and automatic stabilisation of resonance asymmetry factor.

5 cl, 1 dwg