Waveguide-type optical isolator and method for making the same

Details Waveguide-type optical isolator and method for making the same Waveguide-type optical isolator and method for making the same

1997-03-28

1999-05-04

Bovernick, Rodney

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

385 14, 385 27, G02B 612

Patent

active

059012587

ABSTRACT:
A waveguide-type optical isolator, which has: an optical waveguide which is formed a semiconductor material that absorbs only light with a specified wavelength; a pair of electrodes which are formed on the upper and lower surfaces of the optical waveguide; means for injecting a traveling-wave voltage pulse into the pair of electrodes; and an electric circuit which is connected with the pair of electrodes, wherein the electric circuit satisfies an impedance matching condition at a terminal of the optical waveguide; wherein the traveling-wave voltage pulse allows a non-absorption or amplfying region which travels with the traveling-wave voltage pulse to be formed in the optical waveguide.

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M. Levy et al., "Integrated Optical Isolators with Sputter-Deposited Thin-Film Magnets", IEEE Photonics Technology Letters, vol. 8, No. 7, Jul. 1996, pp. 903-905.

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