A high-extinction ratio and low-loss silica-based 8 x 8 thermooptic matrix switch is demonstrated. The 8 x 8 matrix switch is realized by using a double Mach-Zehnder interferometer switching unit and a matrix arrangement which reduces the total waveguide length. The average extinction ratio and the average insertion loss are 60.3 and 5.2 dB, respectively.
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页码:358 / 360
页数:3
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