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:
Jul. 29, 2014
Filed:
Sep. 19, 2012
Finisar Corporation, Sunnyvale, CA (US);
Huiping Li, Shanghai, CN;
Fan Chen, Shanghai, CN;
Xiaolin Chen, Shangai, CN;
Fahua Lan, Shanghai, CN;
Finisar Corporation, Sunnyvale, CA (US);
Abstract
In some example embodiments, a demodulator may include an input polarization beam splitter (IPBS), input half waveplate (IHWP), cubical polarization beam splitter (CPBS), first reflector (R), second reflector (R), first quarter waveplate (QWP), second quarter waveplate (QWP), beam displacer (BD), output half waveplate (OHWP), and output polarization beam splitter (OPBS). The CPBS may be positioned to receive an output from IPBS. The IHWP may be positioned between IPBS and CPBS. The Rmay be positioned to receive and return a first output from CPBS. The QWPmay be positioned between CPBS and R. The Rmay be positioned to receive and return a second output from CPBS. The QWPmay be positioned between CPBS and R. The BD may be positioned to receive a third output from CPBS. The OPBS may be positioned to receive an output from BD. The OHWP may be positioned between BD and OPBS.