Optical communications systems

Details Optical communications systems Optical communications systems

1975-04-11

1976-05-18

Corbin, John K.

350 96C, G02B 514

Patent

active

039573435

ABSTRACT:
Energy propagating in a dielectric optical waveguide may be transferred from one mode of propagation to another by inducing a spatially undulatory variation in refractive index in the core of the dielectric optical waveguide. Such a variation may be induced by an electro-static field. The electro-static field may be directed either longitudinally of, or transversely of the dielectric optical waveguide. A suitably periodic electro-static field may be generated by positioning a suitable electrode structure about the dielectric optical waveguide. For certain applications it may be desirable to arrange for the spatial period of the electro-static field to vary in a random manner. By arranging for propagating modes to couple to non-propagating modes an optical modulator may be produced.

REFERENCES:
patent: 3531185 (1967-10-01), Buchsbaum et al.
patent: 3666348 (1972-05-01), Marcatili
patent: 3723921 (1973-03-01), Rowe et al.
patent: 3764195 (1973-10-01), Blank et al.
patent: 3770339 (1973-11-01), Ramaswamy

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