Title :
Generation of spectrally efficient Nyquist-WDM QPSK signals using DSP techniques at transmitter
Author :
Junyi Wang ; Chongjin Xie ; Pan, Z.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Louisiana at Lafayette, Lafayette, LA, USA
Abstract :
We investigate complexity and performance of transmitter DSP for Nyquist-WDM QPSK and show that filters with less than 20 taps can reduce the channel spacing to 1.1 times the symbol rate within a 1-dB penalty.
Keywords :
digital signal processing chips; optical transmitters; quadrature phase shift keying; wavelength division multiplexing; DSP; Nyquist-WDM QPSK signal generation; channel spacing; quadrature phase shift keying; transmitter; wavelength division multiplexing; Bit error rate; Channel spacing; Digital signal processing; Finite impulse response filter; Optical filters; Optical noise; Optical transmitters;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2012 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4673-0262-3
