Temporal Coherence Between Superposed Light Beams from Two Ruby Optical Masers

An Interference Experiment with Two Independent Beams of Ruby Maser Light

Coherence Time Measurements of Light from Ruby Optical Masers

Simultaneous Optical Maser Action in Two Ruby Satellite Lines

Observation of Optical Maser Oscillation in Ruby

Quasi-Continuous Output from a Ruby Optical Maser

Stimulation versus Emission in Ruby Optical Maser