Multiplexing of adjacent vortex modes with the forked grating coupler

Christopher T. Nadovich; Derek J. Kosciolek; David T. Crouse; William D. Jemison

doi:10.1117/12.2272046

24 August 2017 Multiplexing of adjacent vortex modes with the forked grating coupler

Christopher T. Nadovich, Derek J. Kosciolek, David T. Crouse, William D. Jemison

Proceedings Volume 10343, Metamaterials, Metadevices, and Metasystems 2017; 103431N (2017) https://doi.org/10.1117/12.2272046
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States

Abstract

For vortex fiber multiplexing to reach practical commercial viability, simple silicon photonic interfaces with vortex fiber will be required. These interfaces must support multiplexing. Toward this goal, an efficient singlefed multimode Forked Grating Coupler (FGC) for coupling two different optical vortex OAM charges to or from the TE0 and TE1 rectangular waveguide modes has been developed. A simple, apodized device implemented with e-beam lithography and a conventional dual-etch processing on SOI wafer exhibits low crosstalk and reasonable mode match. Advanced designs using this concept are expected to further improve performance.

Conference Presentation

Citation Download Citation

Christopher T. Nadovich, Derek J. Kosciolek, David T. Crouse, and William D. Jemison "Multiplexing of adjacent vortex modes with the forked grating coupler", Proc. SPIE 10343, Metamaterials, Metadevices, and Metasystems 2017, 103431N (24 August 2017); https://doi.org/10.1117/12.2272046

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