Title :
Low-penalty phase de-multiplexing of QPSK signal by dualpump phase sensitive amplifiers
Author :
Mingyi Gao ; Kurosu, Takayuki ; Inoue, Takeru ; Namiki, Shu
Author_Institution :
Network Photonics Res. Center, Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba, Japan
Abstract :
We demonstrate phase de-multiplexing of QPSK signal to BPSK signals based on dual-pump phase sensitive amplifiers by controlling and stabilizing the gain axis. The de-multiplexed BPSK signals have an OSNR penalty less than 1-dB compared to the back-to-back BPSK signals.
Keywords :
demultiplexing; optical fibre amplifiers; optical pumping; quadrature phase shift keying; BPSK signals; QPSK signal; dual-pump phase sensitive amplifiers; gain axis control; gain axis stability; low-penalty phase demultiplexing;
Conference_Titel :
Optical Communication (ECOC 2013), 39th European Conference and Exhibition on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-759-5
DOI :
10.1049/cp.2013.1439
