Patent EP0226728A2 successfully refreshed from Google Patents.
EP0226728A2
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EP
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Optical devices incorporating optical filters
Assignee: AT&T Inc
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Filing: 1986-09-30
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Granted: —
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Expires: 2006-09-30
Abstract
Abstract An optical device comprising a filter using first and second grating sections (3 and 5, respectively) separated by a changed refractive index section (7) disposed on a substrate (1). The filter operates as a narrowband grating resonator.
Inventors
- 👤 Rodney Clifford Alferness
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 14:05
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/10; H01S5/1028; G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/124; G02F; G02F1/00; G02F1/01; G02F1/21; G02F1/225; H01S5/1032; H01S5/12; G02B2006/12083; G02B2006/12107; G02B2006/12109; H01S5/06; H01S5/062; H01S5/0625; H01S5/06255; H01S5/06256; H01S5/06258; H01S5/1228; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
An optical device comprising a substrate having a first refractive index, and, disposed on said substrate, a first grating section, CHARACTERIZED IN THAT also disposed on said substrate are a second grating section and a phase shift section, said phase shift section being between said first and second grating sections.
Claim 2
Dependent Claim
50 words
An optical device comprising a substrate having a first refractive index, and, disposed on said substrate, a first grating section, CHARACTERIZED IN THAT also disposed on said substrate are a second grating section and a phase shift section, said phase shift section being between said first and second grating sections.
Claim 3
Dependent Claim
15 words
A device according to claim 1, CHARACTERIZED IN THAT said sections comprise a compound semiconductor.
Claim 4
Dependent Claim
17 words
A device according to claim 2, CHARACTERIZED IN THAT said compound semiconductors comprise Group III-V compound semiconductors.
Claim 5
Dependent Claim
14 words
A device according to claim 1, CHARACTERIZED IN THAT said sections comprise lithium niobate.
Claim 6
Dependent Claim
13 words
A device according to claim 1, CHARACTERIZED IN THAT said sections comprise silica.
Claim 7
Dependent Claim
17 words
A device according to claim 1, CHARACTERIZED BY further comprising an electrode to said phase shift section.
Claim 8
Dependent Claim
20 words
A device according to claim 1, CHARACTERIZED BY further comprising a light source optically coupled to said first grating section.
References Cited (Backward Citations)
No citation records indexed.
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