Modulators

Details Modulators Modulators

1985-12-24

1988-02-02

Sikes, William L.

350 9613, G02B 636

Patent

active

047225831

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.

REFERENCES:
patent: 3923373 (1975-12-01), Dabby et al.
patent: 4021097 (1977-05-01), McMahon
patent: 4184738 (1980-01-01), Wright
patent: 4334774 (1982-06-01), Glass et al.
patent: 4386822 (1983-06-01), Bergh
patent: 4447116 (1984-05-01), King et al.
IEEE Transactions on Circuits & Systems, vol. CAS-26, No. 12, Dec. 1979, pp. 1099-1108, by Schmidt and Alferness.

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