@techreport{TD:100809,
	att_abstract={{This paper presents an overview on  the generation and transmission of 450Gb/s wavelength-division multiplexed (WDM) channels over the standard 50GHz ITU-T grid at a net spectral efficiency (SE) of 8.4b/s/Hz.  It is shown that the use of near ideal Nyquist pulse shaping, spectrally-efficiecnt high-order modulation format, distributed Raman amplficiation, distributed compensation of ROADM filtering effects, coherent equalization and high-coding gain forward error correction (FEC) code may enable us to operate  future 400G systems over the standard 50GHz-grid optical network.  }},
	att_authors={xz8628},
	att_categories={C_NSS.12},
	att_copyright={{ZTE}},
	att_copyright_notice={{The definitive version was published in  2012 {{, 2012-03-15}}{{, http://wwwen.zte.com.cn/endata/magazine/ztecommunications}}
}},
	att_donotupload={},
	att_private={false},
	att_projects={},
	att_tags={fiber, Optical, spectral efficiency, modulation format},
	att_techdoc={true},
	att_techdoc_key={TD:100809},
	att_url={http://web1.research.att.com:81/techdocs_downloads/TD:100809_DS1_2012-02-27T23:28:06.633Z.doc},
	author={Xiang Zhou},
	institution={{ZTE Communications }},
	month={March},
	title={{High Spectral Efficiency 400G Transmission}},
	year=2012,
}