Patent 10516490 was granted and assigned to Intel on December, 2019 by the United States Patent and Trademark Office.
An apparatus comprises a substrate; a laser emitter arranged on the substrate, wherein laser energy emitted by the laser emitter includes a center frequency; a photodiode arranged on the substrate; and a laser bandpass filter arranged above the photodiode, wherein the bandpass filter has a passband that excludes the center frequency of the laser energy.