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. 23, 2021
Filed:
Jan. 31, 2018
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Steven J. Spector, Lexington, MA (US);
Michael G. Moebius, Allston, MA (US);
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Abstract
A monostatic optical system adaptable for use as a circulator in a LiDAR system wherein the monostatic optical system includes a photonic integrated circuit and a first light detector. The photonic integrated circuit includes a nonlinear optical device. For example, the device may be a ring resonator or a Mach-Zehnder interferometer. Transmitted light pulses are of sufficient power to alter the optical characteristics of the nonlinear optical device, whereas received reflected light is of low power thereby traveling on a different path to the first light detector. A feedback monitor and tuner may be included to tune the optical characteristics of the nonlinear optical device.