Silicon cross-connect filters using microring resonator coupled multimode-interference-based waveguide crossings | Zendy

Fang Xu | Zendy; Andrew W. Poon | Zendy

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Silicon cross-connect filters using microring resonator coupled multimode-interference-based waveguide crossings

Author(s) -

Fang Xu,

Andrew W. Poon

Publication year - 2008

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.008649

Subject(s) - resonator , optics , crosstalk , waveguide , silicon on insulator , interference (communication) , optical filter , materials science , optoelectronics , physics , silicon , channel (broadcasting) , telecommunications , computer science

We report silicon cross-connect filters using microring resonator coupled multimode-interference (MMI) based waveguide crossings. Our experiments reveal that the MMI-based cross-connect filters impose lower crosstalk at the crossing than the conventional cross-connect filters using plain crossings, while offering a nearly symmetric resonance line shape in the drop-port transmission. As a proof-of-concept for cross-connection applications, we demonstrate on a silicon-on-insulator substrate (i) a 4-channel 1 x 4 linear-cascaded MMI-based cross-connect filter, and (ii) a 2-channel 2 x 2 array-cascaded MMI-based cross-connect filter.

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