Title :
All-optical phase noise suppression using optical nonlinear mixing combined with tunable optical delays
Author :
Chitgarha, M.R. ; Khaleghi, S. ; Ziyadi, M. ; Daab, W. ; Mohajerin-Ariaei, A. ; Rogawski, D. ; Touch, J.D. ; Tur, Moshe ; Langrock, C. ; Fejer, M.M. ; Willner, Alan E.
Author_Institution :
Ming Hsieh Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We propose and demonstrate an all-optical scheme of phase noise reduction using optical nonlinearity and dispersion/conversion delay. This scheme is capable of reducing the standard deviation of phase noise with low frequency component (e.g., laser phase noise) by a factor of ~ 4 without degrading the data signal. The EVM can be reduced from 31% to 11% for ~500 MHz phase noise bandwidth on 20-Gbaud QPSK input.
Keywords :
delays; laser noise; optical fibre communication; optical modulation; optical phase conjugation; optical tuning; phase noise; quadrature phase shift keying; EVM; QPSK; QPSK signal; all-optical phase noise suppression; conversion delay; dispersion delay; optical nonlinear mixing; phase conjugate signal; phase noise bandwidth; tunable optical delays; Bandwidth; Delays; Laser noise; Nonlinear optics; Optical fibers; Phase noise; Phase shift keying;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
