Acousto-optical tunable waveguide switch having balanced optical

Details Acousto-optical tunable waveguide switch having balanced optical Acousto-optical tunable waveguide switch having balanced optical

1996-10-01

1998-05-05

Ngo, John

Optical waveguides

Directional optical modulation within an optical waveguide

Acousto-optic

385 16, 385 21, G02B 610

Patent

active

057488100

ABSTRACT:
A wavelength selective acousto-optical waveguide device comprises a first and a second optical path in an optical waveguide having a length different by an amount corresponding to a value d=.+-..lambda.(k +m) where d is the difference between the optical paths of the two waveguides, .lambda. is the wavelength of the optical signal, k is a number greater than 0 and less than 1; and m is 0 or a whole number, so as to create a phase shift between at least two parasitic components of the optical signal, such as to generate a destructive interference between the parasitic components.

REFERENCES:
patent: 5218653 (1993-06-01), Johnson et al.
IEEE Photonics Technology Letters, Nov. 1994, USA, vol. 6, No. 11, ISSN 1041-1135, pp.1335-1337.

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