| Autor: |
Youn, Jae Hyeong, Song, Kwang Yong, Park, Hee Su |
| Zdroj: |
Journal of Lightwave Technology; 11/1/2020, Vol. 38 Issue 21, p6076-6081, 6p |
| Abstrakt: |
Dynamic and coherent coupling between distant cores in a commercially available optical four-core fiber is demonstrated. Wavelength-selective excitation of cladding modes is experimentally realized by an acousto-optic mode coupler by which higher-order cladding modes are visualized and compared with simulations. By comparing the coupling conditions to a global cladding mode, the relative propagation constants of the local core modes are precisely measured at an accuracy level down to 10−6. Core-cladding-core three-mode coupling operation dynamically switches optical signals between two arbitrary distant cores in the four-core fiber and achieves an inter-core switching efficiency of 55.4%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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