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The first path-independent insertion-loss(PILOSS) strictly non-blocking 4×4 silicon electro–optic switch matrix is reported. The footprint of this switch matrix is only 4.6 mm×1.0 mm. Using single-arm modulation, the crosstalk measured in this test is-13 d B ～-27 d B. And a maximum crosstalk deterioration of 6d B caused by two-path interference is also found.
The first path-independent insertion-loss (PILOSS) strictly non-blocking 4 × 4 silicon electro-optic switch matrix is reported. The footprint of this switch matrix is only 4.6 mm × 1.0 mm. Using single-arm modulation, the crosstalk measured in this test is-13 d B ~ -27 d B. And a maximum crosstalk deterioration of 6d B caused by two-path interference is also found.