Highly integrated photonic InP circuits raise the demand for an augmented number of optical ports. Therefore, we present the integration of an optical bus in our generic platform consisting of a compact Spot-Size Converter (SSC) array, and we demonstrate it by connecting it to an 8 x 8 AWG. The SSCs have a 25 µm pitch and expand the mode from 0.5 µm in the AWG waveguide layer to 3 µm after the SSC. The adiabatic conversion is based on a vertical taper with two linear sections. We measured 0.7 dB loss per fiber-chip coupling for a 700 µm long SSC device.
|Publication status||Published - 2012|