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Monday, March 07, 2022 4:54:26 PM
In the PR, Lebby mentions "fiber optic transceivers" and "other new market opportunities". I think this is the first time transceivers have been mentioned as a market available now. The patented device can be incorporated into existing tech. This seems big to me.
Regarding the patent, I recommend anyone interested in seeing what the "monolithic PIC" looks like and how it is made go to the USPTO site, click on 'Find it fast', then 'Patent public search', enter the patent number (11262605) in the search field, then, in the 'Document Viewer' pane, click the left-most icon ('Switch to Image View'). That shows the full document, including the diagrams. You can download a pdf from there. Figures 24, 25 and 26 provide the best illustrations I've seen in any patent document. You have to got through the text to find out what the various parts are.
Questions: The figures and text describe the 'active region' as the material where modulation takes place. This, I assume, is the polymer/Perkamine mix, which is only located in the arms of the Mach-Zender modulator, between the electrodes that provide the current to modulate the light beam. So is the 'passive' core just the polymer, without the Perkamine mixed in?
The text describes the 'adiabatic transition' of input optical waves from the passive core to the active region and back again. So the light beam is modulated just by a layer of active material (polymer + Perkamine) lying on top of the passive polymer? I'd like to learn more about that. I assumed that the arms of the modulators were filled with 'active' material.
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