A new method for incoherent combining of far-field laser beams based on multiple faculae recognition

Demao Ye; Sichao Li; Zhihui Yan; Zenan Zhang; Yuan Liu

doi:10.1117/12.2316761

5 March 2018 A new method for incoherent combining of far-field laser beams based on multiple faculae recognition

Demao Ye, Sichao Li, Zhihui Yan, Zenan Zhang, Yuan Liu

Proceedings Volume 10710, Young Scientists Forum 2017; 1071034 (2018) https://doi.org/10.1117/12.2316761
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

Compared to coherent beam combining, incoherent beam combining can complete the output of high power laser beam with high efficiency, simple structure, low cost and high thermal damage resistance, and it is easy to realize in engineering. Higher target power is achieved by incoherent beam combination which using technology of multi-channel optical path correction. However, each channel forms a spot in the far field respectively, which cannot form higher laser power density with low overlap ratio of faculae. In order to improve the combat effectiveness of the system, it is necessary to overlap different faculae that improve the target energy density. Hence, a novel method for incoherent combining of far-field laser beams is present. The method compromises piezoelectric ceramic technology and evaluation algorithm of faculae coincidence degree which based on high precision multi-channel optical path correction. The results show that the faculae recognition algorithm is low-latency(less than 10ms), which can meet the needs of practical engineering. Furthermore, the real time focusing ability of far field faculae is improved which was beneficial to the engineering of high-energy laser weapon or other laser jamming systems.

Citation Download Citation

Demao Ye, Sichao Li, Zhihui Yan, Zenan Zhang, and Yuan Liu "A new method for incoherent combining of far-field laser beams based on multiple faculae recognition", Proc. SPIE 10710, Young Scientists Forum 2017, 1071034 (5 March 2018); https://doi.org/10.1117/12.2316761

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