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:
May. 13, 2025
Filed:
Jun. 09, 2023
Bandwidth10, Ltd., Berkeley, CA (US);
Carlos Fernando Rondina Mateus, Berkeley, CA (US);
Christopher Chase, Berkeley, CA (US);
Michael C. Y. Huang, Taipei, TW;
Murat Serbay, Berlin, DE;
Stefano Prandoni, Berlin, DE;
Philip Worland, Berkeley, CA (US);
Abstract
A monitoring device system has a tunable VCSEL laser having one or more active regions including quantum wells and barriers. The active regions are surrounded by one or more p-n junctions. The one or more active regions can include a selected shape structure, as well as one or more tunnel junctions (TJ). One or more apertures are provided with the selected shape structure. One or more buried tunnel junctions (BTJ) or oxide confine the apertures, additional TJ's, planar structures and or additional BTJ's created during a regrowth process that is independent of a first growth process. A VCSEL output is determined in response to an application of the VCSEL laser. The VCSEL laser includes an HCG grating and a bottom DBR. A receiver receives the optical radiation that is reflected from a target scene and is indicative of respective times of flight of the pulses to and from a target scene. A processor and control circuit select a first pulse repetition interval (PRI), a second PRI, greater than the first PRI, and a third PRI, greater than the second PRI, from a permitted range of PRIs, and to drive the VCSEL laser to emit a first sequence of the pulses at the first PRI as well as a second sequence of the pulses at the second PRI, and a third sequence of the pulses at the third PRI, and to process the signals output by the receiver in response to the first, second, and third sequences of the pulses in order to compute respective depth coordinates of the points in the target scene.