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7 October 2020 Performance analysis and optimization of inertial confinement fusion cascaded frequency converters based on the integrated optomechanical method
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Abstract

Due to the unique mechanical and optical characteristics, it is difficult to carry out experimental research and online measurement for large-aperture ICF frequency converters. To analyze and optimize the performance of the frequency converters under complex process loads, we present an integrated optomechanical method that correlates actual process loads with laser critical characteristics. Based on the established optomechanical model, the key factor that induces the loss of harmonic generation efficiency is identified. In addition, the proposed method is conductive to rapid evaluation, prediction, and optimization of comprehensive performance of frequency converters. Thereby, we propose an adaptive frequency conversion system (AFCS). The results indicate that AFCS can not only minimize the phase mismatching of second harmonic generation doubler but also significantly improve the quality of far-field focal spot.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Dingfu Chen, Yingjie Yu, Dongya Chu, and Hui Wang "Performance analysis and optimization of inertial confinement fusion cascaded frequency converters based on the integrated optomechanical method," Optical Engineering 59(10), 105101 (7 October 2020). https://doi.org/10.1117/1.OE.59.10.105101
Received: 17 June 2020; Accepted: 21 September 2020; Published: 7 October 2020
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