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. 21, 2026
Filed:
Feb. 06, 2024
Google Llc, Mountain View, CA (US);
Google LLC, Mountain View, CA (US);
Abstract
The technology is generally directed to a coherent optical system that performs phase folding for one-dimensional coherent optical signals using a first optical coupler configured to output a first signal portion and a second signal portion, a second optical coupler to receive the first signal portion through a first branch and the second signal portion through a parallel second branch, and a phase-folding time delay unit including at least a first time delay component positioned on the first branch and a second time delay component positioned on the second branch. An output of the second optical coupler is a phase-folded version of the one-dimensional modulated optical signal that is capable of being demodulated by a one-dimensional vector receiver.