G - Physics – 02 – F
Patent
G - Physics
02
F
345/56
G02F 1/00 (2006.01) G02F 1/01 (2006.01) G02F 1/065 (2006.01) G02F 1/19 (2006.01) G02F 1/313 (2006.01)
Patent
CA 1304490
ABSTRACT OF THE DISCLOSURE Electro-optical components and semi-manufactured articles, and method for making them. A light conducting layer is formed from a poleable or poled glassy polymer material, which has an under exciting radiation definitively destructible e/o activity. A selective irradiation under a parallel beam will give sharp transitions (C, D) from an e/o active area (2.1) or an area which can still be activated to an e/o non-active area. The buffer layers (3 and 5) can also consist of suchlike irradiated material. A suitable positioning of the electrodes (4 and 11) between which by means of a difference in voltage applied across the connections (12 and 13) an electric field with a sufficient intensity and/or uniformity can be induced extending into the border area, on both sides of the transition planes (C, D), will make sharp inducible refractive index transitions possible. This is utilized with e/o inducible waveguides in thin layers to obtain sharp lateral definitions, and in an optical intermediate switch.
600803
Fetherstonhaugh & Co.
Koninklijke Kpn N.v.
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