Guided-wave optical interconnections for interchip data transmis-sions and clock distributions are demonstrated. The optical interconnection circuit consists of a silica-based guided-wave circuit, laser diodes, and photodiodes. The interconnection topology adopts the star coupler network used in local area networks as a model. The laser diodes and photodiodes are assembled with the guided-wave circuit by the hybrid integration technique. Preliminary experiments on a four-chip interconnection circuit yield a 340 Mbps data rate and a 250 MHz clock frequency.