What device served as the immediate technical predecessor to the laser?

Answer

The MASER

The MASER, an acronym for Microwave Amplification by Stimulated Emission of Radiation, was the technical predecessor to the laser. While the MASER utilized microwave frequencies, the foundational concept of stimulated emission was later adapted by researchers like Gordon Gould to function with light waves, eventually leading to the development of the laser.

What device served as the immediate technical predecessor to the laser?
inventioninventorlaserGordon Gould