Fig. 7From: Handling mode and polarization in fiber by fs-laser inscribed (de)multiplexer and silicon switch arrayMeasured BER performance for the optical router. a Schematic illustration of the multi-port router. The router paths are b 1−1 @ 1548.2 nm, c 1−2 @ 1550.3 nm, d 1−3 @ 1552.65 nm, e 1−4 @ 1553.55 nm, f 1−5 @ 1555.8 nm, g 1−6 @ 1558.1 nm. The insets show the typical constellations of QPSK signalsBack to article page