US3327232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflectionless input resonant laser amplifier
Assignee: General Electric Co
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Filing: 1965-07-02
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Granted: 1967-06-20
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Tomiyasu Kiyo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/05; H01S3/08; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/097; H01S3/0975
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A LASER AMPLIFIER COMPRISING A BODY OF LASER MEDIUM AND PUMPING MEANS THEREFOR, A BODY OF LASER MEDIUM DISPOSED IN AN OPTICAL RESONANT CAVITY DEFINED BY A FIRST REFLECTIVE SURFACE THROUGH WHICH AN INPUT UNAMPLIFIED LASER BEAM MAY ENTER AND A SECOND REFLECTIVE SURFACE THROUGH WHICH THE OUTPUT AMPLIFIED LASER BEAM IS EMITTED, SAID FIRST AND SECOND REFLECTIVE SURFACES SPACED APART AN INTEGRAL NUMBER OF HALF-WAVE LENGTHS OF AN OPTICAL RADIATION FREQUENCY CHARACTERISTIC OF AN ENERGY LEVEL TRANSITION IN THE LASER MEDIMUM, AND SAID FIRST SECOND REFLECTIVE SURFACES HAVING UNEQUAL REFLECTION COEFFICIENTS WHEREIN THE RATIO THEREOF IS A PREDETERMINED FUNCTION OF THE AMPLIFIER ONE-WAY POWER GAIN WHICH RESULTS IN A REFLECTIONLESS INPUT TO THE AMPLIFIER.
Claim 2
Dependent Claim
116 words
IN A LASER AMPLIFIER COMPRISING A BODY OF LASER MEDIUM AND PUMPING MEANS THEREFOR, A BODY OF LASER MEDIUM DISPOSED IN AN OPTICAL RESONANT CAVITY DEFINED BY A FIRST REFLECTIVE SURFACE THROUGH WHICH AN INPUT UNAMPLIFIED LASER BEAM MAY ENTER AND A SECOND REFLECTIVE SURFACE THROUGH WHICH THE OUTPUT AMPLIFIED LASER BEAM IS EMITTED, SAID FIRST AND SECOND REFLECTIVE SURFACES SPACED APART AN INTEGRAL NUMBER OF HALF-WAVE LENGTHS OF AN OPTICAL RADIATION FREQUENCY CHARACTERISTIC OF AN ENERGY LEVEL TRANSITION IN THE LASER MEDIMUM, AND SAID FIRST SECOND REFLECTIVE SURFACES HAVING UNEQUAL REFLECTION COEFFICIENTS WHEREIN THE RATIO THEREOF IS A PREDETERMINED FUNCTION OF THE AMPLIFIER ONE-WAY POWER GAIN WHICH RESULTS IN A REFLECTIONLESS INPUT TO THE AMPLIFIER.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |