InPDnGaAsP WAFER-BONDED VERTICALLY COUPLED X- MULTIPLEXER CROSSING MULTIPLE CHANNEL OPTICAL ADD-DROP
2001
A vertically coupled InPhGaAsP crossed waveguide optical add-drop multiplexer (OADM) has been realized through the use of wafer bonding. Designed for signals in the 1550-nm range, this novel device requires only a single epitaxial growth and illustrates the use of vertical optical interconnects for the three-dimensional routing of optical signals. To our knowledge, it is also one of the first optical vertically coupled devices with no horizontally coupled counterpart.
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