Optical Coatings for mid-IR DFG-based Next Generation Transceivers for Optical SATCOM

As optical satellite communication becomes a topic of interest for data communication (ex: 5G), there is a need for reliable and cheap ground based optical transceivers and receivers. In this work, we are interested in the design and fabrication optical coatings required to optimize the performance of 3.4-µm laser sources based on difference frequency generation (DFG) in a PPLN crystal, from 1064 nm and 1550 nm laser light.