Diffractive combining and control of femtosecond pulse beam arrays

Russell Wilcox; Tong Zhou; Qiang Du; Dan Wang; Antonio Gilardi; Siyun Chen; Derun Li

doi:10.1117/12.2614781

4 March 2022 Diffractive combining and control of femtosecond pulse beam arrays

Russell Wilcox, Tong Zhou, Qiang Du, Dan Wang, Antonio Gilardi, Siyun Chen, Derun Li

Proceedings Volume 11981, Fiber Lasers XIX: Technology and Systems; 119810G (2022) https://doi.org/10.1117/12.2614781
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

We have developed a scalable, ultrafast laser beam combination scheme, which can combine many beams using two diffractive optics. A feature of this approach is the information contained in the uncombined output beams, which can be used to derive phase error information. We show that a machine-learning algorithm can learn to stabilize beam combination with high efficiency, by finding correlations between uncombined output beam patterns and phase errors.

Conference Presentation

Citation Download Citation

Russell Wilcox, Tong Zhou, Qiang Du, Dan Wang, Antonio Gilardi, Siyun Chen, and Derun Li "Diffractive combining and control of femtosecond pulse beam arrays", Proc. SPIE 11981, Fiber Lasers XIX: Technology and Systems, 119810G (4 March 2022); https://doi.org/10.1117/12.2614781

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