期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 39, 期 4, 页码 1102-1107出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2020.3032154
关键词
Optical switches; Topology; Optical waveguides; Optical losses; Synthetic aperture sonar; Insertion loss; Optical switch; silicon photonics; switch architecture; switch topology
资金
- TIA SuperCleanroom (SCR) of National Institute of Advanced Industrial Science and Technology (AIST)
- Japan Science and Technology Agency, CREST [JPMJCR15N6]
The proposed port-alternated switch-and-select architecture for planar waveguide-based optical switches reduces the number of intersections on a path, leading to small insertion loss and path dependence. An 8 x 8 optical switch based on this architecture demonstrated on a silicon photonic platform exhibited a fiber-to-fiber insertion loss of 5.7 dB with crosstalk below -30 dB. The scalability of the switch, including propagation and bend losses of the waveguides, was also discussed.
We propose and demonstrate a port-alternated switch-and-select architecture for planar waveguide-based optical switches. The proposed architecture reduces the number of intersections on a path, which leads to both small insertion loss and small path dependence. We demonstrate an 8 x 8 optical switch based on the proposed architecture using a silicon photonic platform, which exhibits a fiber-to-fiber insertion loss of 5.7 dB with a crosstalk below -30 dB. We discuss the scalability of the switch, including the propagation and bend losses of the waveguides.
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