US3297875A
Expired / Lapsed
US
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Optical traveling wave parametric devices
Assignee: International Business Machines Corp
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Filing: 1962-06-28
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Granted: 1967-01-10
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Expires: 1982-06-28
Abstract
No abstract record available.
Inventors
- 👤 Richard L Garwin
- 👤 Wilton A Hardy
- 👤 Rolf W Landauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:10
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/39; G02F1/395; G02F1/392
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A TRAVELING WAVE PARAMETRIC SYSTEM COMPRISING (A) AN OPTICAL FIBER HAVING A CORE MEMBER AND A CLADDING MEMBER, AT LEAST ONE OF SAID MEMBERS BEING MADE OF A NON-LINEAR DIELECTRIC MATERIAL, (B) MEANS FOR APPLYING A FIRST OPTICAL WAVE OF A GIVEN FREQUENCY TO SAID OPTICAL FIBER, SAID FIBER BEING CAPABLE OF SUPPORTING SAID FIRST OPTICAL WAVE OF GIVEN FREQUENCY AND A SECOND OPTICAL WAVE OF TWICE SAID GIVEN FREQUENCY, SAID FIRST OPTICAL WAVE BEING APPLIED TO SAID FIBER TO PRODUCE SAID SECOND WAVE OF TWICE SAID GIVEN FREQUENCY THEREIN AND IN A DIRECTION SUCH THAT SAID FIRST AND SECOND WAVES TRAVEL THROUGH SAID FIBER AT EQUAL PHASE VELOCITIES, AND (C) MEANS FOR DETECTING SAID SECOND OPTICAL WAVE.
Claim 2
Dependent Claim
118 words
A TRAVELING WAVE PARAMETRIC SYSTEM COMPRISING (A) AN OPTICAL FIBER HAVING A CORE MEMBER AND A CLADDING MEMBER, AT LEAST ONE OF SAID MEMBERS BEING MADE OF A NON-LINEAR DIELECTRIC MATERIAL, (B) MEANS FOR APPLYING A FIRST OPTICAL WAVE OF A GIVEN FREQUENCY TO SAID OPTICAL FIBER, SAID FIBER BEING CAPABLE OF SUPPORTING SAID FIRST OPTICAL WAVE OF GIVEN FREQUENCY AND A SECOND OPTICAL WAVE OF TWICE SAID GIVEN FREQUENCY, SAID FIRST OPTICAL WAVE BEING APPLIED TO SAID FIBER TO PRODUCE SAID SECOND WAVE OF TWICE SAID GIVEN FREQUENCY THEREIN AND IN A DIRECTION SUCH THAT SAID FIRST AND SECOND WAVES TRAVEL THROUGH SAID FIBER AT EQUAL PHASE VELOCITIES, AND (C) MEANS FOR DETECTING SAID SECOND OPTICAL WAVE.
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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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |