Laser Range

Is there any commercially available laser source that produces electromagnetic beams in the range of radio fre?

Is there any commercially available laser source that produces electromagnetic beams in the range of radio frequencies (especially 1-10 kHz)?

not that low but
Maser = Microwave Amplification by Stimulated Emission of Radiation
was invened first before Laser ( light amplification by stimulated emission of radiation)

1950s and on




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