Experimental contents
☆To learn general principle and technology of light modulation and difference frequency;
☆To measure wavelength by phase method;
☆To measure phase by difference frequency method;
☆To measure propagation velocity of light in the air
Configuration and parameters
☆Laser wavelength: 650nm;
☆Total length of guide rail: 600mm;
☆Frequency of modulating signal: 100MHZ.