Multi-planar amorphous silicon photonics with compact interplanar couplers, cross talk mitigation, and low crossing loss

Autor: Jeff Chiles, Sonia Buckley, Nima Nader, Sae Woo Nam, Richard P. Mirin, Jeffrey M. Shainline
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: APL Photonics, Vol 2, Iss 11, Pp 116101-116101-7 (2017)
Druh dokumentu: article
ISSN: 2378-0967
DOI: 10.1063/1.5000384
Popis: We propose and experimentally demonstrate a photonic routing architecture that can efficiently utilize the space of multi-plane (3D) photonic integration. A wafer with three planes of amorphous silicon waveguides was fabricated and characterized, demonstrating < 3 × 1 0 − 4 dB loss per out-of-plane waveguide crossing, 0.05 ± 0.02 dB per interplane coupler, and microring resonators on three planes with a quality factors up to 8.2 × 1 0 4 . We also explore a phase velocity mapping strategy to mitigate the cross talk between co-propagating waveguides on different planes. These results expand the utility of 3D photonic integration for applications such as optical interconnects, neuromorphic computing and optical phased arrays.
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