US6093939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid optical module including an intermediate element
Assignee: Oclaro North America Inc
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Filing: 1998-02-24
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Granted: 2000-07-25
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Expires: 2018-02-24
Abstract
Abstract A hybrid optical device includes a passive component coupled optically to an active component, the passive component being formed in layers of silica on a substrate made of silica, the layers and the substrate thus forming a silica-on-silica structure. The hybrid optical device includes an intermediate element having good thermal conductivity and a coefficient of thermal expansion similar to that of the active component, wherein the active component is fixed to the intermediate element prior to insertion into the cavity, and the intermediate element is fixed to the structure so that the active component is located inside the cavity and is coupled optically to the passive component.
Inventors
- 👤 Claude Artigue
- 👤 Denis Tregoat
- 👤 Franck Mallecot
- 👤 Emmanuel Grard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:14
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
140 words
A hybrid optical device comprising: an active component including a first positioning mechanism and coupled optically to a passive component including a second positioning mechanism, said passive component being formed in layers of silica on a substrate made of silica, said layers and said substrate thus forming a silica-on-silica structure, an intermediate element including a third positioning mechanism having a predetermined thermal conductivity and a coefficient of thermal expansion similar to that of the active component, and a cavity provided in the silica-on-silica structure, wherein the intermediate element is assembled both to the active component and to the silica-on-silica structure so that the active component is located inside the cavity and is coupled optically to the passive component and said first, second, and third positioning mechanisms contribute to align an optical axis of the active component with the passive component.
Claim 2
Dependent Claim
140 words
A hybrid optical device comprising: an active component including a first positioning mechanism and coupled optically to a passive component including a second positioning mechanism, said passive component being formed in layers of silica on a substrate made of silica, said layers and said substrate thus forming a silica-on-silica structure, an intermediate element including a third positioning mechanism having a predetermined thermal conductivity and a coefficient of thermal expansion similar to that of the active component, and a cavity provided in the silica-on-silica structure, wherein the intermediate element is assembled both to the active component and to the silica-on-silica structure so that the active component is located inside the cavity and is coupled optically to the passive component and said first, second, and third positioning mechanisms contribute to align an optical axis of the active component with the passive component.
Claim 3
Dependent Claim
54 words
A device according to claim 1, wherein the first positioning mechanism comprises keying means, the second positioning mechanism comprises markings, and the third positioning mechanism comprises abutments, said abutments being suitable for being positioned firstly against said keying means situated on the active component, and secondly against said markings situated in the silica-on-silica structure.
Claim 4
Dependent Claim
14 words
A device according to claim 1, wherein the intermediate element is made of silicon.
Claim 5
Dependent Claim
24 words
A device according to claim 1, wherein the intermediate element is relatively very slightly greater in area than an area of the active component.
Claim 6
Dependent Claim
32 words
A device according to claim 1, wherein the intermediate element has an area smaller than one square millimeter, and wherein the silica-on-silica structure has an area larger than a few square millimeters.
Claim 7
Dependent Claim
19 words
A device according to claim 1, wherein the active component is mounted "the right way up" in the cavity.
Claim 8
Dependent Claim
32 words
A device according to claim 1, wherein the cavity is a non-through cavity, and wherein the intermediate element is placed above the cavity so as to participate in encapsulating the active component.
Claim 9
Dependent Claim
152 words
A hybrid optical device comprising: an active component coupled optically to a passive component, said passive component being formed in layers of silica on a substrate made of silica, said layers and said substrate thus forming a silica-on-silica structure, a cavity provided in the silica-on-silica structure, and an intermediate element having a predetermined thermal conductivity and a coefficient of thermal expansion similar to that of the active component, wherein said intermediate element comprises first positioning means, said active component comprises second positioning means, and said silica-on-silica structure comprises third positioning means, such that said first positioning means and said second positioning means cooperate to align said intermediate element together with said active component, and said first positioning means and said third positioning means co-operate such that said intermediate element is aligned with said silica-on-silica structure, and the active component is located inside the cavity and is coupled optically to the passive component.
Claim 10
Dependent Claim
152 words
A hybrid optical device comprising: an active component coupled optically to a passive component, said passive component being formed in layers of silica on a substrate made of silica, said layers and said substrate thus forming a silica-on-silica structure, a cavity provided in the silica-on-silica structure, and an intermediate element having a predetermined thermal conductivity and a coefficient of thermal expansion similar to that of the active component, wherein said intermediate element comprises first positioning means, said active component comprises second positioning means, and said silica-on-silica structure comprises third positioning means, such that said first positioning means and said second positioning means cooperate to align said intermediate element together with said active component, and said first positioning means and said third positioning means co-operate such that said intermediate element is aligned with said silica-on-silica structure, and the active component is located inside the cavity and is coupled optically to the passive component.
Claim 11
Dependent Claim
130 words
A hybrid optical device comprising: an active component coupled optically to a passive component, said passive component being formed in layers of silica on a substrate made of silica, said layers and said substrate thus forming a silica-on-silica structure, an intermediate element having a predetermined thermal conductivity and a coefficient of thermal expansion similar to that of the active component, and a cavity provided in the silica-on-silica structure, wherein the intermediate element is assembled both to the active component and to the silica-on-silica structure so that the active component is located inside the cavity and is coupled optically to the passive component; wherein the intermediate element includes abutments suitable for being positioned firstly against keying means situated on the active component, and secondly against markings situated in the silica-on-silica structure.
Claim 12
Dependent Claim
130 words
A hybrid optical device comprising: an active component coupled optically to a passive component, said passive component being formed in layers of silica on a substrate made of silica, said layers and said substrate thus forming a silica-on-silica structure, an intermediate element having a predetermined thermal conductivity and a coefficient of thermal expansion similar to that of the active component, and a cavity provided in the silica-on-silica structure, wherein the intermediate element is assembled both to the active component and to the silica-on-silica structure so that the active component is located inside the cavity and is coupled optically to the passive component; wherein the intermediate element includes abutments suitable for being positioned firstly against keying means situated on the active component, and secondly against markings situated in the silica-on-silica structure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-25 | 2004-01-24 | 2004-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-25 | 2008-01-24 | 2008-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-25 | 2012-01-24 | 2012-07-25 | $7700.00 | Window Closed / Lapsed |