Tomofuji Shinji, Matsuo Shinji, Kakitsuka Takaaki, Kitayama Ken-ichi
Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita-shi, Osaka, 565-0871, Japan.
Opt Express. 2009 Dec 21;17(26):23380-8. doi: 10.1364/OE.17.023380.
Multimode interference (MMI) waveguide switches show promise for switch in optical packet switching (OPS). In this work, we fabricated 1 x 4 InGaAsP/InP MMI waveguide switch device which consists of a 1 x 4 MMI splitter, 4 equally spaced single-mode waveguides with phase shifters, and a 4 x 4 MMI combiner. Good crosstalk and extinction ratio of -14.47 dB and 23.39 dB, respectively, are obtained. In addition, we experimentally demonstrate dynamic switching, and the rise and fall time of 1.4 ns and 1.2 ns, respectively, are obtained.
多模干涉（MMI）波导开关在光分组交换（OPS）中的开关应用方面展现出前景。在这项工作中，我们制作了1×4 InGaAsP/InP MMI波导开关器件，它由一个1×4 MMI分束器、4个带有相移器的等间距单模波导以及一个4×4 MMI合束器组成。分别获得了-14.47 dB和23.39 dB的良好串扰和消光比。此外，我们通过实验演示了动态开关特性，并分别获得了1.4 ns和1.2 ns的上升时间和下降时间。
