Compact, Low-Loss 4x4 Optical Switch Matrix Using Multimode Interferometers
18 January 2001
We report a 4x4 strictly non-blocking optical cross-connect fabricated in silica-on-silicon waveguide technology using 1x4 MMI-based generalized Mach-Zehnder interferometers. The loss of the switch is 2.8 dB and the average crosstalk is 35 dB.