Author:
Ma Hansi,Huang Jie,Zhang Kaiwang,Yang Junbo
Abstract
AbstractBased on high symmetric structure, we propose the arbitrary-input and ultra-compact 1 × 2 and 1 × 3 power splitters by utilizing inverse design method.
These devices can realize the functionality of power splitting, when the optical field is launched from arbitrary port. The shapes of their structures are 3.8 μm-wide regular hexagon and 4.0 μm-wide regular octagon, respectively. By utilizing 3D fine difference time domain solutions, the simulated results indicate that the excess loss of the 1 × 2 power splitter is less than 1.5 dB from 1,500 to 1,600 nm, and the excess loss and crosstalk of the 1 × 3 power splitter are less than 1.9 dB and lower than − 15.5 dB over 100 nm bandwidth at the centered wavelength of 1,550 nm respectively. In addition, the tolerances to fabrication errors are also investigated.
Funder
the National Natural Science Foundation of China
the China Postdoctoral Science Foundation
the Foundation of NUDT
the Hunan Provincial Natural Science Foundation of China
the Program for New Century Excellent Talents in University
Publisher
Springer Science and Business Media LLC
Cited by
27 articles.
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