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7 November 1983 Post Pulse Study For Antares Driver Amplifier
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Proceedings Volume 0380, Los Alamos Conf on Optics '83; (1983) https://doi.org/10.1117/12.934764
Event: Los Alamos Conference on Optics, 1983, New Mexico, United States
Abstract
The Antares Driver Amplifier utilizes Cassegrain optics. It was observed that for an input of a single 1-ns pulse, multiple pulses were produced at the output. The characteristic time between these pulses was exactly the round-trip time of the two Cassegrain optics. The study to eliminate these extra pulses had two parts, one experimental and the other a computer modeling. Many ideas were tried during the experimental phase, and only one technique was found to significantly reduce the extra pulses; that was to properly mask the primary mirror. The computer modeling made use of a ray-tracing code to look for multiple passes due to scattering or diffraction of various optical surfaces, or misalignment of the optics themselves. The results showed that there were several such paths, but the most prominent one was scattering or diffraction of the primary mirror around the inner hole, in agreement with the experimental phase. However, some of the other paths are also of interest.
© (1983) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Charles E. Knapp "Post Pulse Study For Antares Driver Amplifier", Proc. SPIE 0380, Los Alamos Conf on Optics '83, (7 November 1983); https://doi.org/10.1117/12.934764
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