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- W2968922880 abstract "We review the research progress of strictly nonblocking optical switches based on silicon photonics. We have developed a switch chip fabrication process based on a complementary metal-oxide-semiconductor pilot line and optical and electrical packaging technologies. We demonstrated all-paths transmission and switching of up to 32 input ports × 32 output ports with an average fiber-to-fiber insertion loss of 10.8 dB. Furthermore, we demonstrated an operating bandwidth wider than 100 nm for −30 dB crosstalk with double-Mach–Zehnder element switches in an 8 × 8 switch. For polarization-insensitive operation, we adopted a polarization diversity scheme and fabricated an 8 × 8 switch with fiber-based polarization-beam-splitters and two switch chips. The 8 × 8 switch exhibited a polarization-dependent loss of less than 0.5 dB. Moreover, an on-chip polarization diversity 8 × 8 switch integrated with polarization splitter rotators and two switch matrices on a single chip demonstrated a differential group delay less than 1 ps. Based on current technologies, we discuss the prospects for further port count expansion and remaining challenges for commercial deployment." @default.
- W2968922880 created "2019-08-22" @default.
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- W2968922880 date "2020-01-15" @default.
- W2968922880 modified "2023-10-17" @default.
- W2968922880 title "Low-Loss, Low-Crosstalk, and Large-Scale Optical Switch Based on Silicon Photonics" @default.
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- W2968922880 doi "https://doi.org/10.1109/jlt.2019.2934768" @default.
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