Co-packaged optical modules aim to meet the increasing bandwidth and power reduction requirements in next-generation datacenter switches. Meeting the cost per capacity targets requires new and innovative wafer-scale manufacturing solutions. In this work, glass with low-loss (<0.1 dB/cm) single-mode ion-exchanged waveguides is proposed as an optoelectronic substrate for co-packaged optics. High-speed ultrafast laser processes are developed to fabricate through glass vias for electrical connections, ablated features to enable passive alignment of MPO-connector to chip coupling, and for the singulation of glass wafers into individual optical circuits with optical quality end-facets for low-loss edge coupling without subsequent post-polishing or finishing steps.
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