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:
Apr. 25, 2023
Filed:
Mar. 05, 2020
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Babak Amirsolaimani, Redmond, WA (US);
Weichuan Gao, Redmond, WA (US);
META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
An optical assembly includes a first polarization-sensitive reflector, a second polarization-sensitive reflector, and a Faraday rotator. The first polarization-sensitive reflector is positioned to transmit light having a first polarization, and reflect light having a second polarization that is orthogonal to the first polarization. The second polarization-sensitive reflector is positioned to reflect light having a third polarization that is different from the first polarization and the second polarization, and transmit light having a fourth polarization that is orthogonal to the third polarization. The Faraday rotator is disposed between the first polarization-sensitive reflector and the second polarization-sensitive reflector so that the Faraday rotator converts: (i) the light having the first polarization into the light having the third polarization, (ii) the light having the third polarization into the light having the second polarization, and (iii) the light having the second polarization into the light having the fourth polarization.