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:
Dec. 24, 2024
Filed:
Oct. 27, 2022
Phase Sensitive Innovations, Inc., Newark, DE (US);
Janusz Murakowski, Bear, DE (US);
Phase Sensitive Innovations, Inc., Newark, DE (US);
Abstract
A method and an apparatus are described that split a broadband optical signal into a plurality of narrow-band portions. Each of said narrow-band portions is combined in the same optical channel with an optical local oscillator (OLO). Furthermore, the OLO is spectrally separate from, or non-overlapping with, the corresponding narrow-band portion of the signal in the same channel. This functionality is achieved by launching the broadband optical signal and a local oscillator optical comb (LOOC) into separate waveguides at the input star coupler of an arrayed-waveguide grating. The waveguides of the output star coupler carry the narrow-band portions of the broadband optical signal along with the respective non-overlapping spectral lines of the OLO.