As networks scale toward 800G, 1.6T and beyond, performance depends on how well optical links are monitored, aligned, tested and converted back into usable electrical information. At AI data-center scale, those material choices can mean cleaner links, fewer design compromises and stronger infrastructure performance.” To convert incoming light pulses back into electrical data, optical systems require detector materials with narrower bandgaps. GPD’s portfolio includes Germanium, standard InGaAs, extended InGaAs, high-speed InGaAs, specialty and multi-cell photodiode options, supported by packaging capabilities such as fiber coupling, optical filters, windows, mounting configurations and thermoelectric cooling. As AI data-center infrastructure expands, photodetection is becoming part of the performance layer behind high-speed optical networks.