Receiver considerations for free-space clock distribution systems

A high speed clock distribution network using free space optical interconnects with substrate mode holograms and high speed transmitter/receiver modules is described. An electrically compatible system with signal jitter less than 70/50 ps at 622/840 MHz is demonstrated. To improve the power consumption of receivers, a low noise receiver applying a resonant front end circuit is designed. The receiver performance is presented and the corresponding system issues are discussed.