US3626318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem oscillator disc amplifier with trivalent neodymium input disc and trivalent neodymium plus ytterbium output discs
Assignee: American Optical Corp
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Filing: 1970-03-10
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Granted: 1971-12-07
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Expires: 1990-03-10
Abstract
Abstract A laser system is disclosed as including a conventional laser generator in tandem and in optical alignment with a laser amplifier, the laser amplifier having a series of laser disks disposed in parallel array in a laser cavity with a coolant therein. The laser disks are arranged as amplifier input disks and amplifier output disks with the input disks using trivalent neodymium as the active ingredient and the output disks using a combination of trivalent neodymium and trivalent ytterbium as the active laser material.
Inventors
- 👤 Charles Gilbert Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:34
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/23; H01S3/2308; H01S3/02; H01S3/04; H01S3/042; H01S3/05; H01S3/06; H01S3/07
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
20 words
The invention according to claim 1 wherein a coolant is included in said cavity for cooling said laser amplifier disks.
Claim 2
Dependent Claim
31 words
The invention according to claim 2 wherein said coolant is heavy water and means are provided with said cavity for causing the flow of said water between and around said disks.
Claim 3
Dependent Claim
78 words
A laser system including a laser oscillator emitting laser output radiation at 1.06 microns'' wavelength, a laser amplifier including disks at the input end thereof having trivalent neodymium as the active laser constituent thereof and disks at the output end of said amplifier having trivalent neodymium and trivalent ytterbium as the active laser constituent thereof, said laser amplifier and laser oscillator being in optical alignment and means for providing an output of 1.06 microns'' wavelength from said amplifier.
Claim 4
Dependent Claim
18 words
The invention according to claim 4 wherein means are provided for cooling the laser disks in said amplifier.
Claim 5
Dependent Claim
49 words
The invention according to claim 5 wherein said means for cooling includes a cavity for housing said coolant and said disks, input means in said cavity and output means in said cavity, said input and output means providing a flow of said coolant between and around said laser disks.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |