Assertion: laser's beam | /r/HasProperty | coherent
Facets:
value: highly
type: DEGREE
Source sentences:
text: Some lasers use a separate injection seeder to start the process off with a beam that is already highly coherent.
text: It produced a coherent light beam in the infrared region of the spectrum at 1.15 micrometres.[citation needed]
text: The conventional light sources such as electric bulb or tube light does not emit highly directional and coherent light whereas lasers produce highly directional, monochromatic, coherent and polarized light beam.