Re: Question to the technology experts (ref. patents of Cisco & Poet)

Aiming to become the global leader in chip-scale photonic solutions by deploying Optical Interposer technology to enable the seamless integration of electronics and photonics for a broad range of vertical market applications

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Guernsey21

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Re: Question to the technology experts (ref. patents of Cisco & Poet)

posted on Jun 16, 2020 07:35PM

Hey Julian, good question and excellent time to change the subject I think. Though I'm definitely not skilled in the art, I'll take a stab at this.

the Cisco patent appears to be referring to a simple photodetector or photodiode built into an interposer. My thinking, the purpose of the device is to simply monitor the intensity of light, at a given wavelength or wavelengths, which is passing through the interposer at any given time. Generally speaking, a photodiode converts photons to an electrical signal which is proportional to the intensity of light (#photons) hitting the diode. Basically, a way to monitor signal intensity in real time. I don't believe this has anything to do with the function of an optical interposer itself, nor anything to do with (or even compatible with??) POET's OI planar waveguide structure. Though, I suspect it could be handy to have such a functionality built into POET's OI platform if it doesn't already exist....