Title :
Cascade of amplitude- and phase-modulator in four different configurations of superchannel generation
Author :
Jales Lima Ferreira, Rafael ; de Lacerda Rocha, Monica ; Da Silva, E.P. ; Moutinho Pataca, Daniel
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Sao Paulo, Sao Carlos, Brazil
Abstract :
We present a study aiming to improve the spectral purity and stability of optical superchannels for transmission above 1 Tb/s. After validating our simulation pallets with experimental data, we investigate the cascade of amplitude and phase modulators in different configurations, both in serial and in a recirculating frequency shift loop. The BER performance for a 23-subcarrier superchannel, DP-QPSK modulated at 1.15 Tb/s, has been evaluated in a 226 km long recirculating loop with a coherent receiver setup.
Keywords :
amplitude modulation; error statistics; optical communication; optical modulation; optical receivers; phase modulation; quadrature phase shift keying; BER; DP-QPSK modulation; amplitude modulator; bit error rate; bit rate 1.15 Tbit/s; coherent receiver setup; distance 226 km; optical superchannels; phase modulator; recirculating frequency shift loop; spectral purity; superchannel generation; Filtering; Optical filters; Optical modulation; Stimulated emission; Optical comb generator; Terabit transmission; cascaded phase modulators; coherent receiver; optical superchannel;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646587
