US3622909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for providing a high-repetition rate q-switched gas laser
Assignee: Union Carbide Corp
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Filing: 1970-08-10
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Granted: 1971-11-23
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Expires: 1990-08-10
Abstract
Abstract A gas laser is Q-switched by rotating one of the end mirrors about an axis forming an acute angle with the axis of the resonator. By this arrangement, the pulse repetition rate of the gas laser may be increased considerably without decreasing the available dwell time for laser pulse generation.
Inventors
- 👤 Brian Hanson Woodcock
- 👤 Walter Luck Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:02
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1123; H01S3/121
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
132 words
A high repetition rate gas laser including: a. a gaseous laser material; b. power supply means for said material; c. end mirrors defining an optical cavity resonator for said laser material; and d. means for moving one of said end mirrors into and out of alignment to restore and spoil the Q of said optical cavity resonator respectively at a given repetition rate, said means including a mounting for rotating said one of said end mirrors about an axis forming an acute angle with respect to the resonator axis of said optical cavity, the plane of the mirror being normal to said resonator axis in at least one rotative position of said mounting so as to form the complementary angle of said aCute angle with the axis of rotation of said mirror.
Claim 2
Dependent Claim
63 words
A laser according to claim 2, in which said one of said end mirrors includes a plurality of facets defining a pyramid; a shaft coaxial with the axis of rotation of the mirror extending normally from an under central portion of the base of said pyramid, the apex angle of each facet with respect to the axis of rotation defining said complementary angle.
Claim 3
Dependent Claim
23 words
A laser according to claim 3, in which said one of said end mirrors is mounted for rotation within said gaseous laser material.
References Cited (Backward Citations)
US3548337A
Cited
US3465358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |