A photonic integrated mode coupler based on Silicon-on-Insulator (SOI) is employed for mode division multiplexing (MDM) over a 193m 19-cell hollow-core photonic bandgap fiber (HC PBGF) with a 3dB bandwidth 120nm. Robust LP01 and LP11 modes, and two degenerate LP11 modes (LP11a and LP11b) MDM x 20Gbaud QPSK transmissions are both experimentally verified.
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机译：基于绝缘体（SOI）的光子集成模式耦合器用于通过193M 19单元空心核心光子带隙光纤（HC PBGF）的模式分割复用（MDM），具有3DB带宽> 120nm。强大的LP01和LP11模式，两种简并LP11模式（LP11A和LP11B）MDM X 20GBaud QPSK传输都是通过实验验证的。
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