Actively stabilized wavelength-insensitive carrier elimination from an electro-optically modulated laser beam
Actively stabilized wavelength-insensitive carrier elimination from an electro-optically modulated laser beam
We demonstrate a simple and robust technique for removal of the carrier wave from a phase-modulated laser beam, using a non-interferometric method that is insensitive to the modulation frequency and instead exploits the polarization-dependence of electro-optic modulation. An actively stabilized system using feedback via a liquid crystal cell yields long-term …