Hybrid integration with efficient ball lens-based optical coupling for compact WDM transmitters
01 January 2016
A photonic integration platform is presented that allows easy manipulation and alignment of a ball lens doublet for efficient coupling between different optical components.
The alignment and fixing of the lenses is automated, accurate, and highly-scalable for compact parallel optical assemblies. To demonstrate this approach, we built a 4×25Gb/s CWDM transmitter with low coupling losses of 1~2dB between lasers and a PLC multiplexing filter.