FLEX BOARD INTERFACE TO AN OPTICAL MODULE

摘要

An optical module comprising a flexible circuit board (220) adapted for mounting the optical module onto a printed circuit board (PCB) (360). The flexible circuit board (220) includes circuitry to effectively match impedances between the optical module components and the electrical circuitry on the PCB mounted close to the active component. The flexible circuit board (220) may also include circuit components to filter the power supply voltage and provide a ground layer to reduce ground loop currents. In separate embodiments, the flex board (220) can be mounted to the PCB (360) at different relative vertical locations. Also disclosed are multiple circuits appropriate for different optical modules that include : laser diodes, avalanche photodiodes, avalanche photodiodes with a transimpedance amplifier, PIN photodiodes, and other optical components in various combinations.