Compact OWC Receiver Enabled by Co-integration of Micro-Lens and PD Arrays on Glass Interposer

Abstract

We present a compact optical wireless receiver based on micro-lens and photodiodes array flip-chipped on a glass interposer. The performance of the receiver is verified with a simulation model and with an optical wireless link experimentally, which concludes that co-integration of micro-lens on the PD array can enhance by 3.5 dB the light collection efficiency of the photodiode array while keeping a field of view of 18 degrees (half angle). And 5.5 Gbps maximum throughput is verified with this receiver, using the discrete multitone transmission.