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首页> 外文期刊>Japanese journal of applied physics >Design of ultra-compact TE mode ring optical isolator using a cobalt ferrite film for silicon photonic integrated circuits
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Design of ultra-compact TE mode ring optical isolator using a cobalt ferrite film for silicon photonic integrated circuits

机译:用硅光子集成电路钴铁氧体薄膜设计超小型TE模式环光隔离器的设计

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In this study, we present the design of an integrated transverse electric mode isolator realized by the epitaxial growth of a cobalt ferrite (CFO) film on a silicon micro-ring resonator structure. Exploiting the large magneto-optical activity of CFO along with the good characteristics of resonator structures, we numerically demonstrated isolator designs with ultra-compact sizes. The use of ring resonator structures with the reduced size is appealing because of lower insertion loss values. The nonreciprocal phase shift was maximized by optimizing the ring cross-section and was further studied in terms of the ring radius employing a transformation optics theory. Finally, we analyzed the optical isolator characteristics in terms of ring size and ring-waveguide power coupling ratio. The computed results pointed out that decreasing the ring size improves the device performance and can ease the device design and fabrication process.
机译:在本研究中,我们介绍了通过在硅微环谐振器结构上的钴铁氧体(CFO)膜的外延生长实现的集成横向电模式隔离器的设计。 利用CFO的大型磁光活性以及谐振器结构的良好特性,我们用超紧凑的尺寸进行了数值演示了隔离器设计。 由于较低的插入损耗值,使用具有减小尺寸的环谐振器结构的使用是吸引人的。 通过优化环形横截面,通过优化环形横截面来最大化非探测相移,并在采用变换光学理论方面进一步研究。 最后,我们在环尺寸和环形波导电耦合比方面分析了光学隔离器特性。 计算结果指出,减小环尺寸可以提高器件性能,并且可以缓解设备设计和制造过程。

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