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US4464758A
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Passively-Q-switched dual laser
Assignee: United Technologies Optical Systems Inc
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Filing: 1982-04-16
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Granted: 1984-08-07
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Expires: 2002-04-16
Abstract
Abstract A passively Q-switched laser system uses a common Q-switch cell to control two lasers. The first laser to turn on Q-switches the other laser.
Inventors
- 👤 Peter P. Chenausky
- 👤 Robert J. Mongeon
- 👤 Lanny M. Laughman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:40
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1123; H01S3/113; G; G01; G01S; G01S17/00; G01S17/02; G01S17/06; G01S17/08; G01S17/10; H01S3/23; H01S3/2383; H01S3/106; H01S3/1061
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
A passively Q-switched laser system comprising: a first optical cavity having a first optical axis; a second optical cavity having a second optical axis; a passive Q-switch disposed to intersect both said first and second optical axes; means for resonating optical radiation along said first and second axes; and means for directing a portion of radiation resonated along one of said axes, by one of said cavities, to overlap the other of said axes in said Q-switch, thereby Q-switching said other of said cavities.
Claim 2
Dependent Claim
84 words
A passively Q-switched laser system comprising: a first optical cavity having a first optical axis; a second optical cavity having a second optical axis; a passive Q-switch disposed to intersect both said first and second optical axes; means for resonating optical radiation along said first and second axes; and means for directing a portion of radiation resonated along one of said axes, by one of said cavities, to overlap the other of said axes in said Q-switch, thereby Q-switching said other of said cavities.
Claim 3
Dependent Claim
24 words
A laser system according to claim 1, in which said portion of resonated radiation intersects said other optical axis at substantially a right angle.
Claim 4
Dependent Claim
23 words
A laser system according to claim 1, in which said portion of resonated radiation intersects said other optical axis at a shallow angle.
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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |