Patent US4647330A successfully refreshed from Google Patents.
US4647330A
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Hybrid single crystal optic fibers by growth solution
Assignee: United States Department of the Air Force
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Filing: 1985-10-01
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Granted: 1987-03-03
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Expires: 2005-10-01
Abstract
Abstract A process of fabricating a hybrid single crystal fiber having nonlinear optical properties such as frequency doubling. Said process includes placing a fiber core upon a bulk nonlinear crystal such as LiIO 3 in a saturated growth solution of LiIO 3 in water. After the core is encased a sufficient distance crystal growth is stopped.
Inventors
- 👤 Stephen C. Rand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:23
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/14; C30B33/00; C30B7/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
84 words
A process of fabricating hybrid single crystal fibers, said process comprising the steps of: placing a bulk nonlinear crystal in a container for holding a growth solution, said bulk nonlinear crystal having a substantially flat upper surface; placing at least one fiber core on said surface of said bulk nonlinear crystal; holding said fiber core upon said upper surface; filling said container with a growth solution, said solution covering said fiber core; heating said solution; and allowing crystal growth to encase said fiber core.
Claim 2
Dependent Claim
84 words
A process of fabricating hybrid single crystal fibers, said process comprising the steps of: placing a bulk nonlinear crystal in a container for holding a growth solution, said bulk nonlinear crystal having a substantially flat upper surface; placing at least one fiber core on said surface of said bulk nonlinear crystal; holding said fiber core upon said upper surface; filling said container with a growth solution, said solution covering said fiber core; heating said solution; and allowing crystal growth to encase said fiber core.
Claim 3
Dependent Claim
20 words
A process as defined in claim 1 wherein said bulk nonlinear crystal is an ionic solid capable of crystal growth.
Claim 4
Dependent Claim
33 words
A process as defined in claim 2 wherein said ionic solid is selected from the group consisting of LiIO 3 , NH 4 H 2 PO 4 and KH 2 PO 4 .
Claim 5
Dependent Claim
17 words
A process as defined in claim 2 wherein said growth solution comprises an ionic compound with water.
Claim 6
Dependent Claim
12 words
A process as defined in claim 4 wherein said solution is saturated.
Claim 7
Dependent Claim
18 words
A process as defined in claim 1 wherein said heating is at a temperature of about 70° F.
Claim 8
Dependent Claim
21 words
A process as defined in claim 1 wherein said fiber core is totally encased on said crystal by crystal growth thereon.
Claim 9
Dependent Claim
19 words
A process as defined in claim 4 wherein said ionic compound is essentially that of said bulk nonlinear crystal.
Claim 10
Dependent Claim
12 words
A process as defined in claim 5 wherein said solution is supersaturated.
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) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |