Gas injection laser
Abstract
Abstract A relatively cool lasing gas such as CO2 is injected into a gas such as N2 which is energized sufficiently to raise the energy of the lasing gas to an upper lasing level. The lasing substance injection occurs within an optical cavity which is oriented transversely to the flow of energizing gas, thus insuring maximum utilization of stimulated photon emission which arises from collisions of the lasing substance with the energized gas within the cavity, Energy may be imparted into the energizing gas through the application of heat from an external source. Collisional depopulation of the lower laser level of the lasing gas is optimized by maintaining the lasing area cool, where the mix occurs, such as by expansion of the energizing gas just before it enters the optical cavity.
Inventors
- 👤 Barry R Bronfin
- 👤 Wayne G Burwell
- 👤 Russell G Meyerand Jr
- 👤 Edward N Hall
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |