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

fYear

2014

fDate

21-25 Sept. 2014

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication (ECOC), 2014 European Conference on

Conference_Location

Cannes

Type

conf

DOI

10.1109/ECOC.2014.6964155

Filename

6964155