Double-stage acousto-optical waveguide device, having polarizati

Details Double-stage acousto-optical waveguide device, having polarizati Double-stage acousto-optical waveguide device, having polarizati

1997-02-03

1998-12-15

Ullah, Akm E.

Optical waveguides

Directional optical modulation within an optical waveguide

Acousto-optic

G02F 1335

Patent

active

058504915

ABSTRACT:
A double-stage acousto-optical waveguide device comprises two polarization conversion stages, a polarization selective input element, a polarization selective output element and two intermediate polarization selective elements that have two branches connected together and two branches not connected together that are located on opposite sides of the branches connected together and extend in lateral waveguides that reach the edges of the substrate.

REFERENCES:
patent: 3958863 (1976-05-01), Isaacs et al.
patent: 5002349 (1991-03-01), Cheung et al.
patent: 5106181 (1992-04-01), Rockwell, III
patent: 5596671 (1997-01-01), Rockwell, III
patent: 5748810 (1998-05-01), Schmid
H. Herrmann et al., "Polarization Independent, Integrated Optical, Acoustically Tunable Wavelength Filters/Switches with Tapered Acoustical Directional Coupler", IEEE Photonics Technology Letters, 6(11):1335-1337 (1994).

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