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Silicon Photonics and Non Reciprocity
Published papers (partial list)
- Steven A. Miller, Yoshitomo Okawachi, Sven Ramelow, Kevin Luke, Avik Dutt, Alessandro Farsi, Alexander L. Gaeta, and Michal Lipson, Tunable frequency combs based on dual microring resonators, , 07 Aug. 2015.
- Christopher T. Phare, Yoon-Ho Daniel Lee, Jaime Cardenas, Michal Lipson, Graphene electro-optic modulator with 30 GHz bandwidth, Nature Photonics, 13 July 2015.
Achieving on-chip optical isolation using CMOS compatible material is a crucial step toward realizing a complete silicon photonics network. Our approach is utilizing asymmetric mode coupling between even and odd modes in a coupled silicon waveguide region by introducing an effective traveling wave refractive index modulation generated from special design of segmented pn diodes. We have currently achieved 3 dB isolation with operation bandwidth over 200 GHz.
Some of our work, in collaboration with Prof. Keren Bergman at Columbia University, is on network applications of our silicon devices such as high speed data transmission and switching using non-blocking filters.