Modulators
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United States of America Patent
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-
Feb 2, 1988
Grant Date -
N/A
app pub date -
Dec 24, 1985
filing date -
Dec 19, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fibre optic modulator comprises an optical fibre 2 and a waveguide 10 of active material. The waveguide 10 is dimensioned such that any mode of the waveguide has a propogation constant which is separated from the propogation constant of the optical fibre mode by an amount equal to or greater than .lambda./L where .lambda. is the wavelength of transmitted electromagnetic radiation in the mode of the optical fibre and L is the length of the effective portion of the waveguide of active material.
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