US4997244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical wavelength converting device and manufacturing method thereof
Assignee: Sanyo Electric Co Ltd
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Filing: 1989-11-16
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Granted: 1991-03-05
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Expires: 2009-11-16
Abstract
Abstract An optical wavelength converting device includes a substrate, and a waveguide layer of a nonlinear organic material formed on one major surface of the substrate and having a thickness tapered along one axis parallel to the major surface, in which a waveguide with a desired thickness can be selected in a direction normal to the axis.
Inventors
- 👤 Yoshitaka Nishio
- 👤 Yuji Hamada
- 👤 Takanori Fujii
- 👤 Masakazu Sakata
- 👤 Yoshikazu Tsujino
- 👤 Kazuhiko Kuroki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:31
CPC Classifications
B; B82; B82Y; B82Y20/00; G; G02; G02F; G02F1/00; G02F1/35; G02F1/37; G02F1/377; G02F1/355; G02F1/361
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
An optical wavelength converting device comprising: a substrate, and a waveguide layer of a nonlinear organic material formed on one major surface of said substrate and having a thickness tapered along one axis parallel to said substrate major surface, said waveguide layer having a desired thickness available for selection in a direction normal to said axis.
Claim 2
Dependent Claim
56 words
An optical wavelength converting device comprising: a substrate, and a waveguide layer of a nonlinear organic material formed on one major surface of said substrate and having a thickness tapered along one axis parallel to said substrate major surface, said waveguide layer having a desired thickness available for selection in a direction normal to said axis.
Claim 3
Dependent Claim
16 words
The optical wavelength converting device of claim 1, wherein said waveguide layer is formed of polydiacetylene.
Claim 4
Dependent Claim
15 words
The optical wavelength converting device of claim 1, wherein said substrate is formed of quartz.
Claim 5
Dependent Claim
34 words
The optical wavelength converting device of claim 1 further comprising: a pair of prism couplers provided parallel to said axis and spaced away from each other by a predetermined distance on said waveguide layer.
Claim 6
Independent Claim
81 words
A method of manufacturing an optical wavelength converting device comprising the steps of: forming a monomolecular layer of an organic material on a liquid surface, and stacking a multilayer of said monomolecular layer on one major surface of a substrate by reciprocating said substrate vertically to and across said monomolecular layer, said multilayer being formed in taper by varying the amount of the vertical movement of said substrate, and polymerizing said multilayers of monomolecular layer to form an optical waveguide layer.
Claim 7
Independent Claim
81 words
A method of manufacturing an optical wavelength converting device comprising the steps of: forming a monomolecular layer of an organic material on a liquid surface, and stacking a multilayer of said monomolecular layer on one major surface of a substrate by reciprocating said substrate vertically to and across said monomolecular layer, said multilayer being formed in taper by varying the amount of the vertical movement of said substrate, and polymerizing said multilayers of monomolecular layer to form an optical waveguide layer.
Claim 8
Dependent Claim
16 words
The method of claim 5, wherein said organic material is Cd salt of diacetylene carboxylic acid.
Claim 9
Dependent Claim
16 words
The method of claim 6, wherein said multilayer is polymerized by ultraviolet energy being impinged thereon.
Claim 10
Dependent Claim
10 words
The method of claim 5, wherein said liquid is water.
Claim 11
Dependent Claim
12 words
The method of claim 5, wherein said substrate is formed of quartz.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-04 | 1994-09-03 | 1995-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-04 | 1998-09-03 | 1999-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-04 | 2002-09-03 | 2003-03-05 | $7700.00 | Window Closed / Lapsed |