SiN/Si double-layer platform for ultralow-crosstalk multiport optical switches

OPTICS EXPRESS, pp. 21130-21141, 2019.

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Abstract:

We experimentally demonstrate a double-layer platform of silicon nitride and silicon for ultralow-crosstalk multiport optical switches. By using a silicon nitride overpass with a large gap of 1.5 mu m, we achieve a crosstalk of less than -50 dB and -45 dB almost entirely in the C-band for 4 x 4 and 16 x 16 switches, respectively. To demon...More

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