Title :
First demonstration of high-order QAM signal amplification in PPLN-based phase sensitive amplifier
Author :
Umeki, T. ; Tadanaga, O. ; Asobe, M. ; Miyamoto, Yutaka ; Takenouchi, H.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We achieved 16QAM signal amplification using a PPLN-based PSA with high gain linearity. Phase noise cancellation and an improved SNR were successfully demonstrated. The applicability of the amplification of multi-carrier signals and two orthogonally-polarized signals was also confirmed toward ultra-high spectrally efficient signal amplification.
Keywords :
amplification; amplifiers; lithium compounds; optical information processing; optical noise; phase noise; quadrature amplitude modulation; LiNbO3; PPLN-based phase sensitive amplifier; high gain linearity; high-order QAM signal amplification; multicarrier signals; orthogonally-polarized signals; periodically poled lithium niobate; phase noise cancellation; ultrahigh spectrally efficient signal amplification;
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.2013.1682
