Yes it is. That is why you get a scrachy and unclear sound.
Barbara Blind has written: 'Response of two-level atoms to intense amplitude modulated laser beams' -- subject(s): Laser beams, Atoms
Applications of junction lasers are in terms of laser output beams as information carriers. Since this output beam needed to be modulated in terms of intensity, the junction laser is handy. The junction laser supplies regulated current.
Light is not naturally digital - perhaps you mean solid state? Digital light as in a fibre-optic cable is just laser light modulated.
Robert Edward Rowlands has written: 'A sequentially modulated ruby laser system for transmitted and scattered light dynamic photoelasticity'
fm- frequency modulated am- amplitude modulated
AM = amplitude modulated. FM = frequency modulated.
a. velocity modulated tube b. frequency modulated tube c. Amplitude modulated tube d. simple triode
FM means Frequency Modulation.
It gives frequency modulated signal
am is amplitude modulation, fm, frequency modulation
For transmission through a radiowave.