Title :
Reduction of XPM penalty by sub-bit delay demodulation of DQPSK
Author :
Govan, D.S. ; Garrett, B. ; Doran, N.J.
Author_Institution :
Sch. of Eng., Swansea Univ., Swansea, UK
Abstract :
We show that using a shortened delay in the demodulator for DQPSK channels can significantly reduce the XPM penalties caused by transmitting 40 Gb/s DQPSK channels alongside 10 Gb/s OOK channels.
Keywords :
amplitude shift keying; delays; demodulation; optical fibre networks; optical modulation; quadrature phase shift keying; telecommunication channels; DQPSK transmission channels; OOK channels; XPM penalty reduction; bit rate 10 Gbit/s; bit rate 40 Gbit/s; subbit delay demodulation; Bandwidth; Delay; Demodulation; Differential quadrature phase shift keying; Filtering; Filters; Phase modulation; Phase noise; Polarization mode dispersion; Transmitters;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
