Research on the influence of alignment error on coupling efficiency and beam quality for Gaussian beam to multimode fiber
| Autor: | Xingyang Liu, Jin Guo, Ning Chen, Kui Shi, Guannan Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Physics Multi-mode optical fiber business.industry General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences lcsh:QC1-999 Power (physics) Distribution (mathematics) Optics 0103 physical sciences Path (graph theory) Coupling efficiency Physics::Accelerator Physics Laser beam quality 0210 nano-technology business Beam (structure) lcsh:Physics Gaussian beam |
| Zdroj: | Results in Physics, Vol 12, Iss, Pp 1044-1049 (2019) |
| ISSN: | 2211-3797 |
| Popis: | The effect of alignment error on the coupling efficiency and beam quality of a Gaussian beam coupled into a large-core multimode fiber is studied in this paper. The equations for evaluating the effect of alignment error on the coupling efficiency are derived separately, and verified with the method of simulation. The calculation and simulation results obtained are highly consistent. In the same way, the effects of alignment error on the beam power distribution are discussed. The results show that the lateral error will change the path of partial light to a large extent, and have a greater influence on the power distribution of the Gaussian beam than the longitudinal error and angular error do. Keywords: Alignment error, Coupling efficiency, Beam quality, Multimode fiber |
| Databáze: | OpenAIRE |
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