Spatial-light-modulator-based optical-fiber joint switch for few-mode multicore fibers

To realize simplified cost-efficient optical networks with routing flexibility and scaling potential, a spatial-light-modulator-based optical-fiber joint switch for few-mode multicore fibers is proposed herein, which can route all spatial channels together as a unit. Numerical simulations and experi...

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Bibliographic Details
Published in:Optics express 2021-11, Vol.29 (24), p.39096-39106
Main Authors: Zhang, Shuanglu, Okamoto, Atsushi, Abe, Yuta, Watanabe, Ryo, Tomita, Akihisa, Soma, Daiki, Wakayama, Yuta, Tsuritani, Takehiro
Format: Article
Language:English
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Summary:To realize simplified cost-efficient optical networks with routing flexibility and scaling potential, a spatial-light-modulator-based optical-fiber joint switch for few-mode multicore fibers is proposed herein, which can route all spatial channels together as a unit. Numerical simulations and experiments were performed, and the results show that the signal paths for a 6-mode 19-core fiber can be simultaneously switched to the target output ports using the proposed method, and the mode-field patterns of the diffracted light can be maintained after joint switching. Further, the maximum port crosstalk can be reduced considerably from -11.6 to -25.1 dB by changing the position of the output port in the proposed method.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.443033