EntityQ4118612· pop 8· linked from 22 articlescoherence timeSign in to savethe time over which a propagating wave (especially a laser or maser beam) may be considered coherentConnectionscoherenceEntitytimeEntitylightEntityspeed of light in vacuumEntitytelecommunicationsEntityelectromagnetic radiationEntitywaveEntitylaserEntitywavelengthEntitysuperconductivityEntitydiffractionEntityoptical dispersionEntitymaserEntityphaseEntityscatteringEntityqubitEntityphase velocityEntitymicrosecondEntityfiber laserEntityGeneral Services AdministrationEntityCategoriesElectromagnetic radiationOptical quantitiesPhysical opticsRadio frequency propagation