Title :
First demonstration of PDM signal amplification using PPLN-based polarization-independent phase sensitive amplifier
Author :
Umeki, T. ; Kazama, Takushi ; Tadanaga, O. ; Enbutsu, K. ; Asobe, M. ; Miyamoto, Yutaka ; Takenouchi, H.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We propose a polarization-independent PSA with a novel polarization-diversity loop configuration using highly efficient PPLN waveguides. Polarization-independent error-free operation for a 40-Gbit/s DQPSK signal and phase-regenerative amplification for an 80-Gbit/s PDM-QPSK signal with artificial phase noise were successfully demonstrated.
Keywords :
lithium compounds; multiplexing; optical communication equipment; optical modulation; optical waveguides; phase noise; quadrature phase shift keying; DQPSK signal; LiNbO3; PDM signal amplification; PDM-QPSK signal; PPLN based polarization-independent phase sensitive amplifier; artificial phase noise; bit rate 40 Gbit/s; bit rate 80 Gbit/s; phase-regenerative amplification; polarization diversity loop configuration; polarization division multiplexing; waveguides; Bit error rate; Gain; Optical fiber amplifiers; Phase noise; Phase shift keying;
Conference_Titel :
Optical Communication (ECOC), 2014 European Conference on
Conference_Location :
Cannes
DOI :
10.1109/ECOC.2014.6963926
