359 / | HD | OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS |
237 | DF | OPTICAL MODULATOR {3} |
238 | DF | .~ Light wave temporal modulation (e.g., frequency, amplitude, etc.) {3} |
240 | DF | .~.~ Changing bulk optical parameter {5} |
285 | DF | .~.~.~ Acousto-optic {2} |
286 | .~.~.~.~ Amplitude modulation |