Title :
Tunable homodyne detection using nonlinear optical signal processing to automatically lock a “local” pump laser to an incoming 20-to-40-Gbaud QPSK data signal
Author :
Chitgarha, M.R. ; Cao, Yijia ; Mohajerin-Ariaei, A. ; Ziyadi, M. ; Khaleghi, S. ; Almaiman, A. ; Touch, J.D. ; 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 tunable homodyne detection using nonlinear optical signal processing to automatically lock a “local” pump laser to an incoming 20-to-40-Gbaud QPSK data signal. Open eyes are obtained for both in-phase and quadrature components of the signal after ~200-km transmission over SMF-28 and DCF fibers. The BER performance of the proposed homodyne detection scheme is also compared with the conventional intradyne receiver.
Keywords :
error statistics; homodyne detection; optical information processing; optical modulation; quadrature phase shift keying; BER performance; DCF fibers; QPSK data signal; SMF-28 fibers; in-phase components; intradyne receiver; local pump laser; nonlinear optical signal processing; open eyes; quadrature components; tunable homodyne detection; Bit error rate; Laser excitation; Optical fibers; Optical filters; Optical receivers; Phase shift keying;
Conference_Titel :
Optical Communication (ECOC), 2014 European Conference on
Conference_Location :
Cannes
DOI :
10.1109/ECOC.2014.6964155
