The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2020
Filed:
Jan. 11, 2019
Rain Tree Photonics Pte. Ltd., Singapore, SG;
Tsung-Yang Liow, Singapore, SG;
Ying Huang, Singapore, SG;
Rain Tree Photonics Pte. Ltd., Singapore, SG;
Abstract
A scavenging photodetection device () is provided. The scavenging photodetection device () includes an optical coupling portion () and a scavenging photodetection portion (). The optical coupling portion () includes an optical coupler () configured to receive light from a light source, a plurality of light absorbers () arranged to absorb the light from the light source that is not collected by the optical coupler (), and at least one primary input waveguide () optically coupled to the optical coupler () and configured to direct collected light to a photonic integrated circuit. The scavenging photodetection portion () includes a primary photodetector () configured to collect uncollected light from the optical coupling portion () to determine an alignment position of the photonic integrated circuit.