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:
Feb. 11, 2025
Filed:
Dec. 23, 2020
Intel Corporation, Santa Clara, CA (US);
Duanni Huang, San Jose, CA (US);
Saeed Fathololoumi, Los Gatos, CA (US);
Meer Nazmus Sakib, Berkeley, CA (US);
Mohammad Montazeri Najafabadi, San Lorenzo, CA (US);
Chaoxuan Ma, Sunnyvale, CA (US);
David Hui, Santa Clara, CA (US);
Taehwan Kim, Berkeley, CA (US);
Ling Liao, Santa Clara, CA (US);
Hao Li, Hillsboro, OR (US);
Ganesh Balamurugan, Hillsboro, OR (US);
Haisheng Rong, Pleasanton, CA (US);
Aliasghar Eftekhar, San Jose, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
The present disclosure is directed to photonic wavelength division multiplexing (WDM) receivers with polarization diversity and/or low reflectance. In embodiments, a WDM receiver is provided with a splitter, a plurality of waveguides and a plurality of photodetectors in series. The waveguides having particular equal path lengths relationship from the splitter to respective ones of the photodetectors. In other embodiments, the WDM receiver is provided with a splitter, a looped waveguide, a plurality of photodetectors, and a plurality of variable optical attenuators (VOAs). The VOAs are configured to suppress reflection of signal beams back to the transmitter. In various embodiments, the WDM receiver is a receiver sub-assembly of a silicon photonic transceiver disposed in a silicon package. Other embodiments may be described and/or claimed.