Electrically controllable optical filter device

Details Electrically controllable optical filter device Electrically controllable optical filter device

1993-12-08

1995-08-01

Healy, Brian

Optical waveguides

Directional optical modulation within an optical waveguide

Electro-optic

385 8, 385 14, 385 27, 385 37, 385 40, 385131, 385130, G02B 612, G02B 610

Patent

active

054386373

ABSTRACT:
An electrically controllable filter device is provided which comprises an electrode structure which induces a filter for waves within a given wavelength range. The electrode structure is so formed that it within the given wavelength range acts as a filter merely upon electrical feeding whereas it in the absence of electrical feeding has no filtering effect. Furthermore, the electrode structure is so arranged that the filter depending on how the electrode structure is fed can be tuned to a number of different discrete frequencies.

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Patent Abstracts of Japan, vol. 14, No. 325 (P-1075), JP-A-02 106 717 (18 Apr. 1990).

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