US3617710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplex digital laser generator
Assignee: United States Department of the Army
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Filing: 1969-11-17
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Granted: 1971-11-02
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Expires: 1989-11-17
Abstract
Abstract A laser generator for producing a single laser beam carrying several channels of digital information simultaneously is disclosed. The frequency components of the laser emission are spatially separated inside the generator cavity, and each component is separately pulse-code modulated according to a digital input signal. A simple receiver is also disclosed.
Inventors
- 👤 Thomas E Honeycutt
- 👤 John J Ehrlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:32
CPC Classifications
H; H04; H04B; H04B10/00; H01; H01S; H01S3/00; H01S3/10; H01S3/106
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
107 words
A laser generator as in claim 1 with: said laser amplifying means including two laser amplifiers disposed at an angle with each having one end near the apex of said angle; said dispersing means being disposed adjacent the respective opposite ends of the amplifiers; said modulating means having mirrors rotatably disposed for reflection of beams between said dispersing means; and a stabilization system including a mirror, a separator, detectors and servosystems having respective generators of sine waves for comparison therewith of the output beams for substantial centralization of the dominant frequency components in their respective gain curves to control orientation of said mirrors between said dispersing means.
Claim 2
Dependent Claim
45 words
A laser generator as in claim 1 wherein: said laser amplifying means includes one laser amplifier; said mirrors include an output mirror disposed near one end of said amplifier; and said dispersing means includes one dispersing means disposed near the other end of said amplifier.
Claim 3
Dependent Claim
24 words
A laser generator as in claim 1, wherein at least one said modulating means includes an adjustable mirror with a positioning device attached thereto.
Claim 4
Dependent Claim
21 words
A laser generator as in claim 1, wherein at least one said modulating means includes a mirror and an absorption modulator.
Claim 5
Dependent Claim
21 words
A laser generator as in claim 1, wherein at least one said modulating means includes a mirror and a refraction modulator.
Claim 6
Dependent Claim
23 words
A laser generator as in claim 2, wherein at least one said modulating means includes a mirror with a positioning device attached thereto.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |