Line-shape flattening resulting from hypersonic nozzle wedge flow in low-pressure chemical lasers
The new hypersonic wedge nozzle (HYWN) supersonic wedge nozzle design produces a significant component of directed gas flow along the optical axis of a laser cavity comparable to thermal speeds. The gain-line-shape function is broadened and the refractive-index line shape is also spread as a functio...
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| Published in | Optics letters Vol. 5; no. 7; p. 291 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.07.1980
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| Online Access | Get more information |
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| Summary: | The new hypersonic wedge nozzle (HYWN) supersonic wedge nozzle design produces a significant component of directed gas flow along the optical axis of a laser cavity comparable to thermal speeds. The gain-line-shape function is broadened and the refractive-index line shape is also spread as a function of wedge-flow half-angle. An analytical treatment as well as a numerical study is presented that evaluates the Doppler-directed-flow impact on the number of longitudinal modes and their frequencies as well as on gain and refractive-index saturation of those that lase in a Fabry-Perot cavity. |
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| ISSN: | 0146-9592 |
| DOI: | 10.1364/OL.5.000291 |