Figure 1 (IMAGE)

Optica

Figure 1

Caption

Fig. 1. (a) Schematic of the 1x2 optical switch element based on the Ln-Si3N4 hybrid waveguide. (b) Missalignment tolerance of the evanescent coupler in the Y direction. (c) Effective index of the Ln-Si3N4 hybrid waveguide vs waveguide width. (d) Schematic structure of the 2x2 cascaded switch architecture. (e,f) Optical micrographs of 1x2 and 2x2 optical switch elements and 2x2 cascaded optical switches.

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Jinwei Su, Shanghai Jiao Tong University

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