US PATENT SUBCLASS 385 / 3
.~.~ Phase modulation type


Current as of: June, 1999
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385 /   HD   OPTICAL WAVEGUIDES

1  DF  TEMPORAL OPTICAL MODULATION WITHIN AN OPTICAL WAVEGUIDE {1}
2  DF  .~ Electro-optic {1}
3.~.~ Phase modulation type


DEFINITION

Classification: 385/3

Phase modulation type:

(under subclass 2) Subject matter wherein the normal zero phase of a constant amplitude optical wave (i.e., carrier wave) is shifted by an angle proportional to the amplitude of an impressed signal (i.e., modulating signal).

(1) Note. A sinusoidal signal of zero phase will have a zero amplitude at the intersection of the x-y axis.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

238+, for temporal phase modulation outside of a waveguide.