US3568088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser with improved power and frequency stability
Assignee: Alcatel Lucent SAS
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Filing: 1968-03-18
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Granted: 1971-03-02
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Expires: 1988-03-18
Abstract
Abstract In a laser consisting of a quartz laser tube closed at the anode end by a mirror normal to the tube axis and at the cathode end by a glass plate having parallel faces and defining with the axis of the tube an angle equal to the Brewster angle, a second mirror disposed normal to the axis of the tube at the cathode end and fixed thereto by a sleeve fitted to the quartz tube.
Inventors
- 👤 Benjamin Dessus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:20
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/105; H01S3/02; H01S3/03; H01S3/034; H01S3/13; H01S3/139; H01S3/1398
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
53 words
The laser as claimed in claim 1 wherein the end of said quartz tube carrying said sleeve is of reduced diameter to receive said sleeve, and said laser further includes means for hermetically sealing said sleeve to said mirror and to said quartz tube to insulate said glass plate from the surrounding medium.
Claim 2
Dependent Claim
52 words
The laser as claimed in claim 1 wherein one of said mirrors has a transmission capacity other than zero and said laser further includes; a photodetector disposed on the outside of said mirror having a transmission capacity other than zero and means for operatively coupling said electric signal generator to said photodetector.
Claim 3
Dependent Claim
45 words
The laser as claimed in claim 3 further including an information-processing circuit operatively coupled to said photodetector such that the electric signal generator emits signals having a frequency on the order of several kc./sec. and an amplitude determined by the signals emitted by said photodetector.
References Cited (Backward Citations)
US3311846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |