Title:
OPTICAL WAVEGUIDES AND METHODS FOR MAKING THE SAME
Document Type and Number:
WIPO Patent Application WO2002010810
Kind Code:
A3
Abstract:
The invention provides a method for producing an optical waveguide that includes the steps of: (a) forming a core structure, the core structure including an at least partially cured core composition, on a master defining a waveguide pattern; (b) applying over the top of the core structure and the master a cladding layer including a liquid cladding composition; (c) curing the cladding layer to form a core/cladding combination; and removing the core/cladding combination from the master so as to expose at least a portion of the core structure, wherein the refractive index of the core material is at least about 0.05 percent higher than the refractive index of the cladding material. In another embodiment, the invention relates to a method for producing an optical waveguide core structure that includes the steps of: (a) applying a core composition to a substrate defining a waveguide core pattern; (b) removing a portion of the core composition from an exposed surface of the filled waveguide core pattern; and (c) at least partially curing the core composition to form a core structure. In another embodiment, the invention relates to a composition for forming either the core or cladding portion of an optical waveguide comprising at least one norbornene-type monomer and/or at least one crosslinking monomer and at least one co-catalyst or procatalyst, wherein polymerization is achieved by the addition of at least one procatalyst (when a co-catalyst is present in the composition) or at least one cocatalyst (when a pro-catalyst is present in the composition). Optical waveguides made by the methods of the invention are also disclosed.
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Inventors:
ZHAO XIAO-MEI
RAVIKIRAN RAMAKRISHNA
NEAL PHILLIP S
SHICK ROBERT A
WATSON JAMES E
KAFKA THOMAS M
CHUM DAVY
JOHNSTON RAYMOND P
RAVIKIRAN RAMAKRISHNA
NEAL PHILLIP S
SHICK ROBERT A
WATSON JAMES E
KAFKA THOMAS M
CHUM DAVY
JOHNSTON RAYMOND P
Application Number:
PCT/US2001/023692
Publication Date:
June 26, 2003
Filing Date:
July 27, 2001
Export Citation:
Assignee:
GOODRICH CORP (US)
MINNESOTA MINING & MFG (US)
MINNESOTA MINING & MFG (US)
International Classes:
C08G61/00; C08F32/08; C08F34/00; G02B6/12; G02B6/122; G02B6/13; G02B6/132; G02B6/138; C08F230/08; C08F232/02; C08F232/08; C08F234/02; C08F234/04; (IPC1-7): G02B6/12
Domestic Patent References:
| WO1998026315A1 | 1998-06-18 | |||
| WO2000034344A1 | 2000-06-15 |
Foreign References:
| DE4104392A1 | 1992-08-20 | |||
| US5230990A | 1993-07-27 | |||
| US5113471A | 1992-05-12 | |||
| US5238877A | 1993-08-24 |
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