US3873941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dye laser having non-colinear optical pumping means
Assignee: COHERENT RADIATION
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Filing: 1973-05-30
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Granted: 1975-03-25
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Expires: 1993-05-30
Abstract
Abstract A dye laser is provided with an optical pumping means which is introduced within the optical resonator cavity obliquely and hence non-collinearly with respect to the optical path of the cavity.
Inventors
- 👤 J Michael Yarborough
- 👤 James L Hobart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:28
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/022
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A CONTINUOUS WAVE DYE LASER COMPRISING: A. AN OPTICAL RESONATOR CAVITY WHICH DEFINES AN OPTICAL PATH FOR DYE LASER OSCILLATIONS; B. A DYE; MEANS FOR DIRECTING SAID DYE AS AN UNSUPPORTED FLOWING FILM TO INTERSECT SAID OPTICAL PATH WITHIN SAID CAVITY; C. A LASER FOR PROVIDING A CONTINUOUS WAVE PUMP BEAM FOR OPTICALLY PUMPING SAID DYE; D. MEANS FOR DIRECTING SAID PUMP BEAM AT SAID DYE BY INTRODUCING SAID PUMP BEAM WITHIN SAID OPTICAL CAVITY OBLIQUELY WITH RESPECT TO SAID OPTICAL PATH, SUCH THAT SAID PUMP BEAM IS NON-COLLINEAR WITH RESPECT TO THE PATH OF SAID DYE LASER OSCILLIATIONS.
Claim 2
Dependent Claim
99 words
A CONTINUOUS WAVE DYE LASER COMPRISING: A. AN OPTICAL RESONATOR CAVITY WHICH DEFINES AN OPTICAL PATH FOR DYE LASER OSCILLATIONS; B. A DYE; MEANS FOR DIRECTING SAID DYE AS AN UNSUPPORTED FLOWING FILM TO INTERSECT SAID OPTICAL PATH WITHIN SAID CAVITY; C. A LASER FOR PROVIDING A CONTINUOUS WAVE PUMP BEAM FOR OPTICALLY PUMPING SAID DYE; D. MEANS FOR DIRECTING SAID PUMP BEAM AT SAID DYE BY INTRODUCING SAID PUMP BEAM WITHIN SAID OPTICAL CAVITY OBLIQUELY WITH RESPECT TO SAID OPTICAL PATH, SUCH THAT SAID PUMP BEAM IS NON-COLLINEAR WITH RESPECT TO THE PATH OF SAID DYE LASER OSCILLIATIONS.
Claim 3
Dependent Claim
24 words
A dYe laser as in claim 1 wherein the plane defined by said unsupported flowing film is at Brewster''s angle to said optical path.
Claim 4
Dependent Claim
36 words
A dye laser as in claim 2 wherein said beam directing means includes means for focusing said laser pump beam to increase the optical energy density at the point where said pump beam intersects said dye.
Claim 5
Dependent Claim
72 words
A dye laser as in claim 1 wherein the angle formed by said pump beam and said optical path does not exceed approximately d/t radians, where d is the diameter of the pump beam as it goes through the dye, t is the thickness of the dye stream, and wherein the pump beam diameter is approximately the same as that of the dye laser oscillations as they both pass through the dye.
Claim 6
Dependent Claim
80 words
In a continuous wave dye laser wherein the dye is introduced across the optical path of the optical resonator cavity thereof as an unsupported thin flat fluid stream, wherein the invention comprises: a continuous wave laser for optically energizing said dye to energy states necessary for lasing action by directing the output beam thereof upon said fluid stream, non-collinearly with respect to said optical path, whereby none of said pump beam is introduced into the output of said dye laser.
Claim 7
Dependent Claim
80 words
In a continuous wave dye laser wherein the dye is introduced across the optical path of the optical resonator cavity thereof as an unsupported thin flat fluid stream, wherein the invention comprises: a continuous wave laser for optically energizing said dye to energy states necessary for lasing action by directing the output beam thereof upon said fluid stream, non-collinearly with respect to said optical path, whereby none of said pump beam is introduced into the output of said dye laser.
Claim 8
Dependent Claim
22 words
A dye laser as in claim 5 wherein said flat fluid dye stream is inclined at Brewster''s angle to said optical path.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |