Combined Microwave and High-Frequency Modulation of the Injection Current of a Diode Laser for Mutiple-Frequency Excitation of CPT-Resonances

The diode laser oscillating modes are identified at which a resolved HF-structure is registered at every sideband, and an equality of the intensities of the sideband spectral components, separated by the clock transition frequency in a rubidium-87 atom, is achieved.