US PATENT SUBCLASS 359 / 238
.~ Light wave temporal modulation (e.g., frequency, amplitude, etc.)

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

237  DF  OPTICAL MODULATOR {3}
238.~ Light wave temporal modulation (e.g., frequency, amplitude, etc.) {3}
239  DF  .~.~> Modulator output feedback to modulator
240  DF  .~.~> Changing bulk optical parameter {5}
290  DF  .~.~> By changing physical characteristics (e.g., shape, size or contours) of an optical element {3}

DEFINITION

Classification: 359/238

Light wave temporal modulation (e.g., frequency, amplitude, etc.):

(under subclass 237) Subject matter wherein a device varies a property of light which is a function of time only as it traverses the device where such variation is in accordance with the applied varying signal which can be of any energy form.

(1) Note. Such properties of the traversing light include amplitude, frequency, or phase.

(2) Note. Optical modulation occuring exclusively within a waveguide is classified in Class 385.

SEE OR SEARCH THIS CLASS, SUBCLASS:

298+, for directional modulation.

SEE OR SEARCH CLASS

385, Optical Waveguides,

1+, for light temporal modulation inside of a waveguide.