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1. (WO2002001688) LOW-INDEX WAVEGUIDE LIQUID CRYSTAL CROSS-CONNECT

Pub. No.:    WO/2002/001688    International Application No.:    PCT/US2001/020546
Publication Date: Jan 3, 2002 International Filing Date: Jun 27, 2001
IPC: G02F 1/1333
G02F 1/313
Applicants: CORNING INCORPORATED
Inventors: CARACCI, Stephen, J.
LESLIE, Thomas, M.
LINDQUIST, Robert, G.
MA, Rui-Qing
SUGGS, James, V.
Title: LOW-INDEX WAVEGUIDE LIQUID CRYSTAL CROSS-CONNECT
Abstract:
A non-blocking NxN cross-connect is provided that has an array of liquid crystal (LC) switches (135, 145) in a grid of planar optical waveguides within a light optical circuit (LOC). LC-filled trenches are used in a planar optical waveguide and each trench provides the functionality of a waveguide polarization splitter (125), a transverse electric (TE) switch cross-point, a transverse magnetic (TM) switch cross-point, or a waveguide polarization combiner (155). The planar optical waveguide has a refractive index substantially equal to the lowest index of refraction of the LC material. By combining these elements, a cross-connect system is fabricated. Also disclosed is a dynamically adjustable prism constructed with a liquid crystal material.