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.

Date of Patent:
Feb. 03, 2026

Filed:

Sep. 20, 2022
Applicant:

Raytheon Company, Waltham, MA (US);

Inventors:

Andrew M. Kowalevicz, Arlington, VA (US);

Benjamin P. Dolgin, Alexandria, VA (US);

Gary M. Graceffo, Burke, VA (US);

Assignee:

Raytheon Company, Arlington, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/09 (2006.01); G02B 6/036 (2006.01); G02B 6/27 (2006.01); G02B 27/28 (2006.01); H04B 10/112 (2013.01); H04B 10/61 (2013.01);
U.S. Cl.
CPC ...
G02F 1/093 (2013.01); G02B 6/03622 (2013.01); G02B 6/2746 (2013.01); G02B 6/2766 (2013.01); G02B 27/283 (2013.01); H04B 10/1125 (2013.01); H04B 10/614 (2013.01); G02F 1/09 (2013.01);
Abstract

A system includes an optical transceiver configured to transmit and receive optical signals. The optical transceiver includes a Faraday rotator and a waveplate. The Faraday rotator and the waveplate are collectively configured to provide a relative polarization change between (i) light propagating in a first direction through the Faraday rotator and the waveplate and (ii) light propagating in a second direction opposite the first direction through the Faraday rotator and the waveplate. The waveplate may include a quarter waveplate or a half waveplate.


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