Optical pcb using waveguide-embedded backplane

A practical optical PCB was demonstrated using waveguide-embedded optical backplane and optical slots for board-To-board interconnection. The polymer waveguide was formed by hot embossing and embedded following a conventional lamination processes being used for electrical PCBs. Metal optical bench was used as a packaging die for optical devices and IC chips in transmitter and receiver processing boards. As connection components between transmitter/receiver processing boards and optical backplane board, optical slots was used for easy and repeatable insertion and extraction of the boards with a micron scale precision. We used 1×4 850nm VCSEL array with 2 dBm output power for the transmitter and PIN photodiode array for the receiver. We successfully demonstrated 8 Gb/s data transmission between transmitter processing board and optical backplane board.