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. 26, 2016
Filed:
Feb. 23, 2009
Er'el Granot, Herzliya, IL;
Shalva Ben-ezra, Rehovot, IL;
Yinnon Stav, Ra'anana, IL;
Sagie Tsadka, D.N. Emek Sorek, IL;
Heider Ereifej, Chalfont, PA (US);
Er'el Granot, Herzliya, IL;
Shalva Ben-Ezra, Rehovot, IL;
Yinnon Stav, Ra'anana, IL;
Sagie Tsadka, D.N. Emek Sorek, IL;
Heider Ereifej, Chalfont, PA (US);
Finisar Corporation, Horsham, PA (US);
Abstract
A DPSK/DQPSK receiver includes an optical splitter that separates the received DPSK/DQPSK optical signal according to an optical power splitting ratio into a plurality of received optical signals. A plurality of optical filters passes a plurality of filtered received optical signals. A plurality of optical detectors generates a plurality of electrical detection signals, each with a power that is related to a power of a respective filtered optical signal. A plurality of amplifiers generates a plurality of amplified electrical signals. At least one electrical signal combiner combines the plurality of amplified electrical detection signals generated by the plurality of optical amplifiers into a combined reception signal.