Patent US3259015A successfully refreshed from Google Patents.
US3259015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple reflection optical wave modulator
Assignee: AT&T Inc
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Filing: 1962-04-30
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Granted: 1966-07-05
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Enrique A J Marcatili
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:58
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/0344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR MODULATING AN OPTICAL WAVE AT A MICROWAVE FREQUENCY COMPRISING IN CASCADE: A WAVE POLARIZER; A DIFFERENTIAL PHASE SHIFTER; AND A WAVE ANALYZER; CHARACTERIZED IN THAT SAID DIFFERENTIAL PHASE SHIFTER IS A MICROWAVE RESONATOR COMPRISING; A HOLLOW, CONDUCTIVE CYLINDER HAVING CONDUCTIVELY TERMINATED ENDS; SAID ENDS ALSO BEING HIGHLY REFLECTIVE FOR SAID OPTICAL WAVE; A ROD OF ELECTRO-OPTICAL MATERIAL LOCATED WITHIN SAID CYLINDER WITH ITS OPTICAL AXIS ALIGNED PARALLEL TO THE CYLINDER AXIS; THE DIMENSIONS OF SAID RESONATOR BEIONG PROPORTIONED TO SUPPORT WAVE ENERGY AT SAID MICROWAVE FREQUENCY IN A TM 01P MODE; SAID RESONATOR BEING FURTHER PROPORTIONED TO HAVE A LENGTH L ALONG THE RESONATOR AXIS GIVEN BY
Claim 2
Dependent Claim
109 words
APPARATUS FOR MODULATING AN OPTICAL WAVE AT A MICROWAVE FREQUENCY COMPRISING IN CASCADE: A WAVE POLARIZER; A DIFFERENTIAL PHASE SHIFTER; AND A WAVE ANALYZER; CHARACTERIZED IN THAT SAID DIFFERENTIAL PHASE SHIFTER IS A MICROWAVE RESONATOR COMPRISING; A HOLLOW, CONDUCTIVE CYLINDER HAVING CONDUCTIVELY TERMINATED ENDS; SAID ENDS ALSO BEING HIGHLY REFLECTIVE FOR SAID OPTICAL WAVE; A ROD OF ELECTRO-OPTICAL MATERIAL LOCATED WITHIN SAID CYLINDER WITH ITS OPTICAL AXIS ALIGNED PARALLEL TO THE CYLINDER AXIS; THE DIMENSIONS OF SAID RESONATOR BEIONG PROPORTIONED TO SUPPORT WAVE ENERGY AT SAID MICROWAVE FREQUENCY IN A TM 01P MODE; SAID RESONATOR BEING FURTHER PROPORTIONED TO HAVE A LENGTH L ALONG THE RESONATOR AXIS GIVEN BY
References Cited (Backward Citations)
US2913665A
Cited
US2974568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |