Ciena Corporation
Integrated optical device with manufactured waveguide aperture to block stray light and associated manufacture method

Abstract:

A method for manufacturing a waveguide aperture to block stray light from a facet of an integrated optical device include obtaining a wafer with one or more integrated optical devices formed thereon and with a cleaved facet; positioning a mask in front of the cleaved facet, thereby masking at least a portion of the waveguide aperture of at least one the one or more integrated optical devices; and applying a light-blocking coating to the cleaved facet with the mask masking the portion of each of the one or more integrated optical devices.