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jpwang@tsinghua.edu.cn

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Title: 1 Author: Administrator Last modified by: wjp Created Date: 8/27/2002 12:55:05 PM Document presentation format: Company – PowerPoint PPT presentation

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Title: jpwang@tsinghua.edu.cn


1
??????
  • ????

??? jpwang_at_tsinghua.edu.cn ???????? ?????????
2
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3
??????
  • ???????????
  • ???????????????????
  • ????NRZ?RZ?CRZ?CSRZ
  • ????(FEC)?????????????????????,???????????????????
    ??,?????,????????,????????,??????????,????????????
    ??????????dB?????PMD

4
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5
??? ?
  • ?????
  • ?????
  • ??????

6
????????????????
? 1
? 2
7
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8
??????
9
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10
????????????
11
???????????????
12
???????????????
13
???????????
14
???????????
? 8
? 9
15
???????????
? 10
? 11
16
??????????????
????????????????????,????????????
17
???????????
18
????????????
PMD????
??PMD?????
PMD??
WDM/ETDMOTDM
L,S,S
????
L??WDM
OTDM
?????
????????
??
????
WDM
??????
????
??????
19
??????????????

OTDM ??
20
?????????
WDM(????)
???????????
?1
????
?1
????
EDFA
?2
?2
????
????
?3
?3
????
????
?N
?N
???
????
????
????
??????????????
  • ????????
  • ????????
  • ????
  • ?????

21
?????
???L???????
  • L?????,(L??EDFA?????)
  • L?????????
  • LD,
  • WDM,
  • ???
  • DCF!?

22
?????
???????????
?????????,????OSNR,??WDM???????????,???
  • ?????(L-Band)
  • ???? ??????SRS... ? ?????
  • ??????
  • ???? FWM, XPM ? ?????

23
??????
  • ??????FRA
  • ??????FEC
  • ????
  • ??????
  • ???????
  • ????PMD????????
  • 3R??

24
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25
?????
  • ???(???)
  • ???(????)
  • ???
  • ???(????)
  • ????
  • ???
  • ???
  • ?????
  • ?????
  • ??/???
  • ????/????
  • ???
  • ????
  • ?????
  • ???????
  • ???????????????
  • ???????????????
  • ???????????????
  • ???
  • ??
  • ???????????

26
?????????
  • ??????????????,?????????,?????????????????????
    ????????????????
  • ????????????????????????????/??????????????????
    ???????????????????????
  • ????????????????
  • ???????????????
  • ????(??????)???????????
  • ???????????????25?
  • ??????????????(backbone-metro-access)

27
???WDM?????????
  • S???L??????????
  • ??????????????????????(?WDM??????????????????)
  • ??????WDM?????????????
  • ??40Gb/s???????????,????????????????????????
  • ??????????????????

28
??????
  • ????????
  • ?????????
  • ?????
  • ??

Transponder
29
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30

31
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32
??WDM???????
  • ??????40Gb/s,160Gb/s,640Gb/s
  • ???????10GHz
  • ????? ?1022 Channel
  • ???????C-Band,L-Band,S-Band
  • ????? ?450km with remote Amp
  • ??????
  • ???

33
?????
  • ?????????,????????
  • ?????????-???????????
  • ?????????-??????????
  • ?????3R?????(????????)
  • ????WDM?-?????,????
  • WDM????-??????????
  • IP over WDM???
  • ????(OTN)???????

34
(No Transcript)
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