US3414839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional ring laser
Assignee: AT&T Inc
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Filing: 1965-06-18
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Granted: 1968-12-03
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Expires: 1985-06-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Bridges
- 👤 William W Rigrod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:11
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/081; H01S3/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
APPARATUS ADAPTED FOR THE STIMULATED EMISSION OF RADIATION, COMPRISING AN OPTICAL RING RESONATOR, ACTIVE MEAN DISPOSED IN SAID RING RESONATOR TO SUPPORT STIMULATED EMISSION RADIATIONS PROPAGATING IN DIFFERENT DIRECTIONS AROUND SAID RING RESONATOR, MEANS FOR EXCITING SAID MATERIAL TO ENABLE SAID RADIATIONS, SAID RESONATOR, ACTIVE MEANS, AND EXCITING MEANS BEING ADAPTED TO PROVIDE GAIN CHARACTERISTICS THAT ARE ANISOTROPIC WITH RESPECT TO SAID DIFFERENT DIRECTIONS, AND TUNABLE LOSS MEANS DISPOSED IN SAID RING RESONATOR AND PROVIDED WITH SUFFICIENT DISPERSON TO PROMOTE PROPAGATION OF A UNIDIRECTIONAL TRAVELING WAVE IN SAID RING RESONATOR.
Claim 2
Dependent Claim
90 words
APPARATUS ADAPTED FOR THE STIMULATED EMISSION OF RADIATION, COMPRISING AN OPTICAL RING RESONATOR, ACTIVE MEAN DISPOSED IN SAID RING RESONATOR TO SUPPORT STIMULATED EMISSION RADIATIONS PROPAGATING IN DIFFERENT DIRECTIONS AROUND SAID RING RESONATOR, MEANS FOR EXCITING SAID MATERIAL TO ENABLE SAID RADIATIONS, SAID RESONATOR, ACTIVE MEANS, AND EXCITING MEANS BEING ADAPTED TO PROVIDE GAIN CHARACTERISTICS THAT ARE ANISOTROPIC WITH RESPECT TO SAID DIFFERENT DIRECTIONS, AND TUNABLE LOSS MEANS DISPOSED IN SAID RING RESONATOR AND PROVIDED WITH SUFFICIENT DISPERSON TO PROMOTE PROPAGATION OF A UNIDIRECTIONAL TRAVELING WAVE IN SAID RING RESONATOR.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |