Title :
Optical Equalization of 42.7-Gbaud Band-Limited NRZ-DQPSK Signals for High-Spectral-Efficiency Transmission
Author :
Gnauck, A.H. ; Doerr, C.R. ; Winzer, P.J. ; Cabot, S. ; Cappuzzo, M.A. ; Chen, E.Y. ; Wong-Foy, A. ; Gomez, L.T. ; Santo, M.T. ; Kawanishi, T. ; Sakamoto, T.
Author_Institution :
Lucent Technol., Holmdel
Abstract :
We demonstrate the use of an optical equalizer to allow a 42.7-Gbaud (85.4-Gb/s) NRZ-DQPSK signal to tolerate the narrow optical filtering required in high-spectral-efficiency systems. The equalizer passbands are repetitive, enabling equalization of multiple channels.
Keywords :
differential phase shift keying; equalisers; optical fibre communication; optical fibre filters; optical modulation; optical transmitters; quadrature phase shift keying; spectral analysis; band-limited NRZ-DQPSK signal; channel equalization; fiber optics communication; narrow optical filtering; non-return-to-zero; optical equalization; spectral-efficiency; Equalizers; Fiber nonlinear optics; Filtering; Nonlinear optics; Optical filters; Optical modulation; Optical signal processing; Optical transmitters; Phase modulation; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007. OFC/NFOEC 2007. Conference on
Conference_Location :
Anaheim, CA
Print_ISBN :
1-55752-831-4
DOI :
10.1109/OFC.2007.4348718
