公开(公告)号：CA2384234A1

公开(公告)日：2002-12-21

申请号：CA2384234

申请日：2002-04-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WEI XING ,  LIU XIANG ,  CHRAPLYVY ANDREW ROMAN ,  XU CHUNHUI

IPC: H04B10/516 ,  H04B10/2525 ,  H04B10/548 ,  H04B10/58 ,  H04B10/61 ,  H04J14/02 ,  H04L27/18 ,  H04L27/20 ,  H04L27/227 ,  H04B10/18

Abstract: Phase shift keying (PSK) or differential phase shift keying (DPSK) used as t he coding scheme in a high bit rate, long haul dispersion-managed optical transmission system, in which the signaling format is RZ. The system can combine multiple individual channels with different wavelengths in a WDM or dense wavelength division multiplexed (DWDM) arrangement. Dispersion management can be provid ed using several techniques, such as by using dispersion managed solitons, quas i- linear transmission or conventional RZ transmission with pre-compensation and post- compensation.

公开(公告)号：DE602007006024D1

公开(公告)日：2010-06-02

申请号：DE602007006024

申请日：2007-07-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GILES RANDY CLINTON ,  LIU XIANG

IPC: H04B10/155 ,  H04B10/43 ,  H04L27/32

Abstract: Methods and apparatus are described for generating and receiving amplitude and differential-phase encoded signals in which the number of phase states at a given amplitude level is always less than or equal to that at a higher amplitude level and at least two amplitude levels have different numbers of phase states.

公开(公告)号：DE602005002284T2

公开(公告)日：2008-02-14

申请号：DE602005002284

申请日：2005-02-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LIU XIANG ,  SU YIKAI ,  WEI XING

IPC: H04B10/00 ,  H04B10/17

公开(公告)号：DE602005000871D1

公开(公告)日：2007-05-24

申请号：DE602005000871

申请日：2005-09-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FISHMAN DANIEL A ,  LIU XIANG ,  WEI XING ,  YING JINPIN

IPC: H04B10/18 ,  H04J14/02

Abstract: A dispersion compensator apparatus including interleavers for deinterleaving/interleaving even and odd channels of a WDM signal, and dispersion compensation modules (DCMs) coupled between the interleavers. One or more of the DCMs is a periodic-group-delay (PGD) DCMs for providing dispersion compensation.

公开(公告)号：DE60105938D1

公开(公告)日：2004-11-04

申请号：DE60105938

申请日：2001-05-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHANDALIA JUHI ,  DI GIOVANNI DAVID JOHN ,  EGGLETON BENJAMIN JOHN ,  KOSINSKI SANDRA GREENBERG ,  LIU XIANG ,  WINDELER ROBERT SCOTT ,  XU CHUNHUI

IPC: G02B6/02 ,  G02B6/14 ,  G02B6/255 ,  G02B6/16