公开(公告)号：EP2260588A4

公开(公告)日：2014-04-30

申请号：EP09713429

申请日：2009-02-23

申请人： FINISAR CORP

发明人： GRANOT ER EL ,  BEN-EZRA SHALVA ,  STAV YINNON ,  TSADKA SAGIE ,  EREIFEJ HEIDER

IPC分类号： H04B10/67

CPC分类号： H04B10/677

摘要： 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.