Analysis of the effects of mismatched errors on coherent beam combining based on a self-imaging waveguide

作者：Tao, R; Wang, X; Zhou, P^*; Si, L

来源：Quantum Electronics, 2016, 46(1): 61-67.

DOI：10.1070/QE2016v046n01ABEH015591

• self-imaging effects
• laser beam combining
• fibre lasers

A theoretical model of coherent beam combining (CBC) based on a self-imaging waveguide (SIW) is built and the effects of mismatched errors on SIW-based CBC are simulated and analysed numerically. With the combination of the theoretical model and the finite difference beam propagation method, two main categories of errors, assembly and nonassembly errors, are numerically studied to investigate their effect on the beam quality by using the M-2 factor. The optimisation of the SIW and error control principle of the system is briefly discussed. The generalised methodology offers a good reference for investigating waveguide-based high-power coherent combining of fibre lasers in a comprehensive way.

• 出版日期2016
• 单位中国人民解放军国防科学技术大学