US4131863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
CO Chain reaction chemical laser
Assignee: McDonnell Douglas Corp
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Filing: 1976-02-17
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Granted: 1978-12-26
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Expires: 1996-02-17
Abstract
Abstract This application concerns the operation of a CO chemical laser fueled by carbon monosulfide (CS) and oxygen. These fuels allow the operation of a chain reaction, one step of which is the laser pumping reaction. The chain reaction mechanism reduces the O-atom requirement and increases the optical performance of the laser. The ratio of vibrationally excited CO molecules to the O-atom feed is at least 1.5.
Inventors
- 👤 William Q. Jeffers
- 👤 Harris Y. Ageno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:54
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/095
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A method of producing a chain reaction CO chemical laser comprising the steps of (a) mixing a CS-containing fuel in which the ratio of CS/CS 2 exceeds 0.2 with a stream of O 2 oxidizer and O-atom chain initiator such that more than one molecule of vibrationally-excited CO* is produced from a pumping reaction for each O-atom introduced into the mixture and resulting in an inverted population of CO*, (b) passing said mixed stream through a resonant optical cavity to obtain continuous stimulated emission of radiation from the CO*, and (c) extracting a coherent laser beam from the optical cavity.
Claim 2
Independent Claim
100 words
A method of producing a chain reaction CO chemical laser comprising the steps of (a) mixing a CS-containing fuel in which the ratio of CS/CS 2 exceeds 0.2 with a stream of O 2 oxidizer and O-atom chain initiator such that more than one molecule of vibrationally-excited CO* is produced from a pumping reaction for each O-atom introduced into the mixture and resulting in an inverted population of CO*, (b) passing said mixed stream through a resonant optical cavity to obtain continuous stimulated emission of radiation from the CO*, and (c) extracting a coherent laser beam from the optical cavity.
Claim 3
Independent Claim
100 words
A method of producing a chain reaction CO chemical laser comprising the steps of (a) mixing a CS-containing fuel in which the ratio of CS/CS 2 exceeds 0.2 with a stream of O 2 oxidizer and S-atom chain initiator such that more than one molecule of vibrationally-excited CO* is produced from a pumping reaction for each S-atom introduced into the mixture and resulting in an inverted population of CO*, (b) passing said mixed stream through a resonant optical cavity to obtain continuous stimulated emission of radiation from the CO*, and (c) extracting a coherent laser beam from the optical cavity.
Claim 4
Independent Claim
100 words
A method of producing a chain reaction CO chemical laser comprising the steps of (a) mixing a CS-containing fuel in which the ratio of CS/CS 2 exceeds 0.2 with a stream of O 2 oxidizer and S-atom chain initiator such that more than one molecule of vibrationally-excited CO* is produced from a pumping reaction for each S-atom introduced into the mixture and resulting in an inverted population of CO*, (b) passing said mixed stream through a resonant optical cavity to obtain continuous stimulated emission of radiation from the CO*, and (c) extracting a coherent laser beam from the optical cavity.
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) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |