US3359508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power junction laser structure
Assignee: General Electric Co
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Filing: 1964-02-19
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Granted: 1967-12-19
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Expires: 1984-02-19
Abstract
No abstract record available.
Inventors
- 👤 Robert N Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:09
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/81; H10H20/819; H10H20/821; H01; H01S; H01S5/00; H01S5/10; H01S5/12; H01S5/1228; H01S5/30; H01S5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A SEMICONDUCTIVE JUNCTION LASER COMPRISING: A BODY OF CRYSTALLINE SEMICONDUCTIVE MATERIAL HAVING DEGENERATE N-TYPE AND P-TYPE REGIONS, A NARROW SERPENTINE P-N JUNCTION REGION BETWEEN AND CONTIGUOUS WITH SAID DEGENERATE REGIONS EXTENDING LINEARLY IN AT LEAST ONE DIRECTION, AND A PAIR OF PARALLEL REFLECTING FACES FOR ESTABLISHING A STANDING WAVE OF ELECTROMAGNETIC ENERGY IN SAID JUNCTION REGION IN SAID DIRECTION; SAID JUNCTION REGION BEING SUFFICIENTLY CURVED, AS VIEWED IN PLANES PARALLEL TO SAID FACES, SO THAT ANY STRAIGHT LINE DRAWN FROM A POINT IN SAID JUNCTION REGION PARALLEL TO SAID FACES EXTENDS THROUGH A DISTANCE IN AT LEAST ONE OF SAID DEGENERATE REGIONS THAT IS LONGER THAN THE EFFECTIVE ABSORPTION LENGTH FOR SAID RADIATION IN SAID DEGENERATE REGION, SO THAT SPURIOUS RADIATION IS SUPPRESSED.
Claim 2
Dependent Claim
123 words
A SEMICONDUCTIVE JUNCTION LASER COMPRISING: A BODY OF CRYSTALLINE SEMICONDUCTIVE MATERIAL HAVING DEGENERATE N-TYPE AND P-TYPE REGIONS, A NARROW SERPENTINE P-N JUNCTION REGION BETWEEN AND CONTIGUOUS WITH SAID DEGENERATE REGIONS EXTENDING LINEARLY IN AT LEAST ONE DIRECTION, AND A PAIR OF PARALLEL REFLECTING FACES FOR ESTABLISHING A STANDING WAVE OF ELECTROMAGNETIC ENERGY IN SAID JUNCTION REGION IN SAID DIRECTION; SAID JUNCTION REGION BEING SUFFICIENTLY CURVED, AS VIEWED IN PLANES PARALLEL TO SAID FACES, SO THAT ANY STRAIGHT LINE DRAWN FROM A POINT IN SAID JUNCTION REGION PARALLEL TO SAID FACES EXTENDS THROUGH A DISTANCE IN AT LEAST ONE OF SAID DEGENERATE REGIONS THAT IS LONGER THAN THE EFFECTIVE ABSORPTION LENGTH FOR SAID RADIATION IN SAID DEGENERATE REGION, SO THAT SPURIOUS RADIATION IS SUPPRESSED.
References Cited (Backward Citations)
US3245002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |