US4606602A
Expired / Lapsed
US
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Selectively dispersive optical waveguide films
Assignee: Bosch Telecom GmbH
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Filing: 1982-12-01
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Granted: 1986-08-19
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Expires: 2002-12-01
Abstract
Abstract Planar waveguide film structure for an integrated optical system, composed of: a carrier substrate having a first index of refraction n s ; a film having a selected thickness D and a second index of refraction n F greater than the first index of refraction applied onto the substrate for substantially guiding light waves; and a localized optically effective coating applied to the film, the coating having an index of refraction n A and a thickness d such that the following conditions apply: 0.05 D<d<1.00 D n.sub.S <n.sub.F <n.sub.A.
Inventors
- 👤 Hans-Georg Unger
- 👤 Jorn Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:47
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
165 words
Planar waveguide film structure for propagating light waves in an integrated optical system, comprising: a carrier substrate having a first index of refraction n S ; a film having a second index of refraction n F greater than the first index of refraction applied onto said substrate for substantially guiding the light waves being propagated in said structure; and an optically effective coating applied to said film, said coating having an index of refraction n A and forming with the portion of said film therebelow an optical component, wherein: n S =1.4; n F =1.51; n A =1.53; the ratio of the thickness of said coating to the thickness of said portion of said film is 1:10; and the thickness of said coating is approximately 0.65 times λ, where λ is the free space wavelength of the light waves to be guided by said structure; so that at ##EQU2## where d is the thickness of said coating, said optical component has a minimum dispersion value.
Claim 2
Dependent Claim
165 words
Planar waveguide film structure for propagating light waves in an integrated optical system, comprising: a carrier substrate having a first index of refraction n S ; a film having a second index of refraction n F greater than the first index of refraction applied onto said substrate for substantially guiding the light waves being propagated in said structure; and an optically effective coating applied to said film, said coating having an index of refraction n A and forming with the portion of said film therebelow an optical component, wherein: n S =1.4; n F =1.51; n A =1.53; the ratio of the thickness of said coating to the thickness of said portion of said film is 1:10; and the thickness of said coating is approximately 0.65 times λ, where λ is the free space wavelength of the light waves to be guided by said structure; so that at ##EQU2## where d is the thickness of said coating, said optical component has a minimum dispersion value.
Claim 3
Dependent Claim
15 words
Structure as defined in claim 1 wherein said coating is embedded completely in said film.
Claim 4
Dependent Claim
27 words
Structure as defined in claim 1 wherein said coating is partially embedded in said film to a depth of approximately 50% of the thickness of said coating.
Claim 5
Dependent Claim
21 words
Structure as defined in claim 1 wherein said coating is localized to be disposed on only a portion of said film.
Claim 6
Dependent Claim
15 words
Structure as defined in claim 4 wherein said coating has the form of a lens.
Claim 7
Dependent Claim
15 words
Structure as defined in claim 4 wherein said coating has the form of a prism.
Claim 8
Dependent Claim
165 words
Planar waveguide film structure for propagating light waves in an integrated optical system, comprising: a carrier substrate having a first index of refraction n S ; a film having a second index of refraction n F greater than the first index of refraction applied onto said substrate for substantially guiding the light waves being propagated in said structure; and an optically effective coating applied to said film, said coating having an index of refraction n A and forming with the portion of said film therebelow an optical component, wherein: n S =1.4; n F =1.51; n A =1.53; the ratio of the thickness of said coating to the thickness of said portion of said film is 1.5; and the thickness of said coating is approximately 0.8 times λ, where λ is the free space wavelength of the light waves to be guided by said structure; so that at ##EQU3## where d is the thickness of said coating, said optical component has a minimum dispersion value.
Claim 9
Dependent Claim
165 words
Planar waveguide film structure for propagating light waves in an integrated optical system, comprising: a carrier substrate having a first index of refraction n S ; a film having a second index of refraction n F greater than the first index of refraction applied onto said substrate for substantially guiding the light waves being propagated in said structure; and an optically effective coating applied to said film, said coating having an index of refraction n A and forming with the portion of said film therebelow an optical component, wherein: n S =1.4; n F =1.51; n A =1.53; the ratio of the thickness of said coating to the thickness of said portion of said film is 1.5; and the thickness of said coating is approximately 0.8 times λ, where λ is the free space wavelength of the light waves to be guided by said structure; so that at ##EQU3## where d is the thickness of said coating, said optical component has a minimum dispersion value.
Claim 10
Dependent Claim
15 words
Structure as defined in claim 7 wherein said coating is embedded completely in said film.
Claim 11
Dependent Claim
27 words
Structure as defined in claim 7 wherein said coating is partially embedded in said film to a depth of approximately 50% of the thickness of said coating.
Claim 12
Dependent Claim
21 words
Structure as defined in claim 7 wherein said coating is localized to be disposed on only a portion of said film.
Claim 13
Dependent Claim
15 words
Structure as defined in claim 10 wherein said coating has the form of a lens.
Claim 14
Dependent Claim
15 words
Structure as defined in claim 10 wherein said coating has the form of a prism.
Claim 15
Dependent Claim
165 words
Planar waveguide film structure for propagating light waves in an integrated optical system, comprising: a carrier substrate having a first index of refraction n S ; a film having a second index of refraction n F greater than the first index of refraction applied onto said substrate for substantially guiding the light waves being propagated in said structure; and an optically effective coating applied to said film, said coating having an index of refraction n A and forming with the portion of said film therebelow an optical component, wherein: n S =1.4; n F =1.41; n A =1.68; the ratio of the thickness of said coating to the thickness of said portion of said film is 1:10; and the thickness of said coating is approximately 0.34 times λ, where λ is the free space wavelength of the light waves to be guided by said structure; so that at ##EQU4## where d is the thickness of said coating, said optical component has a maximum dispersion value.
Claim 16
Dependent Claim
165 words
Planar waveguide film structure for propagating light waves in an integrated optical system, comprising: a carrier substrate having a first index of refraction n S ; a film having a second index of refraction n F greater than the first index of refraction applied onto said substrate for substantially guiding the light waves being propagated in said structure; and an optically effective coating applied to said film, said coating having an index of refraction n A and forming with the portion of said film therebelow an optical component, wherein: n S =1.4; n F =1.41; n A =1.68; the ratio of the thickness of said coating to the thickness of said portion of said film is 1:10; and the thickness of said coating is approximately 0.34 times λ, where λ is the free space wavelength of the light waves to be guided by said structure; so that at ##EQU4## where d is the thickness of said coating, said optical component has a maximum dispersion value.
Claim 17
Dependent Claim
15 words
Structure as defined in claim 13 wherein said coating is embedded completely in said film.
Claim 18
Dependent Claim
27 words
Structure as defined in claim 13 wherein said coating is partially embedded in said film to a depth of approximately 50% of the thickness of said coating.
Claim 19
Dependent Claim
21 words
Structure as defined in claim 13 wherein said coating is localized to be disposed on only a portion of said film.
Claim 20
Dependent Claim
15 words
Structure as defined in claim 16 wherein said coating has the form of a lens.
Claim 21
Dependent Claim
15 words
Structure as claimed in claim 16 wherein said coating has the form of a prism.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
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