Special Lecture on Communication Systems Engineering

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Special Lecture on Communication Systems
Engineering
??????????????
H20? 7/24??
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????
????? ???????????????????????????????????????????
??? ?????? ???????????????????????????????
????????? (???????????) ????????
(????????????, OADM, OXC) ????????????
(OBS?OPS, MPLS) ???? ???? ???
??????????????????????????? - ????????????
-????????? Ken-ichi Sato, Advances in
Transport Network Technologies Artech House
Publishers ??????????? http//www5a.biglobe.ne.j
p/babe ???? E-mail yamada_at_ecei.tohoku.ac.jp
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???????
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IP?????????
??????????? ???????????500Gbps
Internet traffic of IXs in Japan
http//www.jpix.ad.jp/en/techncal/traffic.html
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????????????
?????????????????????
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????????
?????
???? ?????????(??125mm)????????????
????(WDM) ??????????????200THz????
?????????1????????????????
???????(OTDM) ?????????????????????
??????????????????1???
1Tbps??????
?????(OCDM)?? ??????????????????????
??????????????????????
???
???? ????2???????????????????????? ??
??????????????????1???????????10Tbps??????????????
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???? (?????)
??? (???)
??? (???)
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?(O) ??(E) ?(O)
???? (PD)
???? (LD)
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???? (LD)
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???? (LD)
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15?????????????20?NW?????????
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A ???????
M ???
N ????
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????????
????
A - X B - Y C - W D - Z
A - Z B - W C - Y D - X
???????? ???
??????????
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??????
????????(Ether Net??????, ATM???????)????????????
??????????????????????????????
?????????????????????????????
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???????
IP???? ???? 20??? a, ???? ??? Ether Net ????
22???, ???? ???(461500???) ATM?? ???? 5???,
???? 48???????
?????? IP???? IP???? 32??? (IPv4), 128???
(IPv6), Ether Net MAC???? 48???
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???????
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?????????
???????????????????????????????
????????????????
????????????
??????????????????????????????????
????????????????? ?) IP????????
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???????????
???????
ATM
NW ????
?????????
?????
???5
????????
???4 SW
???4
TCP
???????
IP
???
???3
???????
Ether Net
SW??
???2
ATM
ATM????
??
???
SONET
SDH
CAT5
???1
????
?????
WDM
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??????
1. ?????? (????)
???????????????????????????????
?????????????????????????? (???)?????
????????????????????
2. ???????? (????)
?????????????????????
?) ???????
????????????
??????
??????????????????1??????????????
?) ATM????
??????
?????1?2?????????????1???????????
3. ???????
????????????????????????????????????????
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MPLS
MPLS (Multi-Protocol Label Switching)
????????????????????????????????????????
?????????????????
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MPLS
IP????
?????
??????????????
???
???
IP????
IP????
???????? IP?????????
????????IP??????
?????? ????? (IP)
?????? ????? (IP)
?????? ????? (IP)
???1?NW??
?????
MPLS
MPLS
MPLS
???2????
MPLS???
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????
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???????
????
O-E-O?????????
?????????
O-O-O?????????
1. ???(??)?????? ?????? ??????
?????????????? ?) MEMS?????, ???
(T-O)????? ??????? ?????? (?????)
???????? ?????? (OTDM?????????) ???? ??????
(OCDM?????????) 2. ??????????? (OBS) 3.
??????????? (OPS)
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?????
??1
??1
??1
??1
??1
??1
??2
??2
??2
??2
??2
??2
22 ????
????
?????
????? ????
??????????
??????? 22, 1N, NN
? ??????
???????? ms?????? ns??????
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?????
????-????? (????????????ON-OFF?????????)
????????
? ?
???????
????? (MEMS)
mS???????????? ??
Port1
Port2
???????
??1
??1
mSmS???????????????
???(T-O)??
????
??2
??2

nS????????????
-
????(E-O)??
????
?????????(M-O)??????(A-O)??????
???-????? (?-????? or All?????)
ON-OFF??????? ??????? ?????????????????????
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3??MEMS?????
http//pr.fujitsu.com/jp/news/2003/09/29.html
2005????256256?????1ms????????????????
????? ??????????
????????80 ch 3??MEMS??????
????? ??????
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2??MEMS?????
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Si???????????(T-O)?????
T. Chu et al., Optics Express 13, 10109 (2005)
???? ???????? 90 mW ??? gt 30 dB ?????????? lt
100 ms
?????????
????????
??????????
?????????
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???18?????
T. Chu et al., Proc. SPIE 6477 (2007)
?????????1.4 mm2 mm
MZ?Si????????????
18????????
18???????????????
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???14??????????
MiniDIL?????????
14?SW??
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?(??)??????
??????????
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AWG
????? ??????????? (???) / ????????? (???)
Arrayed Waveguide Grating
????????????????????
??????
??????
Arrayed Waveguide Grating (AWG)
AWG?????
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?????
l1
AWG or ???
AWG
l2
???1
???5
l3
l4
l1
AWG
l2
???2
???6
l3
l4
l1
AWG
l2
???3
???7
l3
l4
l1
AWG
l2
???4
???8
l3
l4
AWG???????????????????
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OADM
OADM (Optical Add/Drop Multiplexer)??
OADM
OADM
OADM
WDM???NW
OADM
WDM???????????????Drop??Add????
R-OADM (Reconfigurable OADM)
Add/Drop??????????????????
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?????????(R-OADM)
T. Chu et al., IEEE Photon. Technol. Lett. 18,
1409 (2006)
?????????????????????? 6.6 nm????????????? ??????
?? lt 100 mS
???????????????????
????
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???????
??????????
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????
1. O-E-O?????
l1
l2
LD
PD
??
2. ????????????
1) ???????(SOA)???????(XGM) or ??????(XPM)????
a) ??Mach-Zehnder??? (SMZ)?
2) ?????????????
a) ????????????????
b) ?????
3) ?????
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????
???????(SOA)???????(XPM)?????????
??Mach-Zehnder??? (SMZ)?
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????
?????????????????
a) ????????????????
w3 w1 w2
w2 2w1
w3 w1 - w2
????
w2
w1
w2
w3
w1
w2
w3
w1
w1
?????
?????
???????
b) ?????
w4 w1 w2 - w3
wi 2wp - ws
????
????
????
w3
ws
???
wp
w2
?????
wi
w4
wp
w1
(l)
w
wp
ws
wi
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????????40Gb/s????
Y.-H. Kuo et al., Optics Express 14, 11721 (2006)
???????? 8cm? SOI pin ????????40G????
?????? -8.6dB Pump power 450 mW
40Gbps NRZ???????
???????????
40Gbps Eye Diagram ? ???? ? ????????
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Si?????????????
V. Raghunathan et al., IEICE Electron. Express 1,
298 (2004)
????????(1.55 mm?1.3 mm)???? (Si ??????)
??
Si ??????
????????????
????????????
?????????????
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???????
l1
l2
l3
l4
l2
l4
l3
l1
???
???
???
t
?????
?????
l1
l4
l3
l2
??????
?????????????
??????????????????????
??????
???
???
???
t
47
???????? ??????
???????????????????????????????????
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????(OCDM) ??????
Code4
Code4
Code1
Code4
Code3
Code3
??
???
Code1
Code2
Code2
Code3
Code1????
???
??
Ch1
t
t
1
0
1
1
0
1
1
0
1
1
0
1
Code1
Code2????
Ch2
t
t
1
0
1
1
0
1
1
0
1
1
0
1
Code3????
Ch3
t
t
1
0
0
0
1
1
1
0
0
0
1
1
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????? ????????
????? ?????? (OBS)
??????????????????????(??)??????
???
???
????
????
??
REQ
??
??
????????
??
??
??
ACK
???????
??????
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????? ????????
????? ?????? (OPS)
????????????????
???
???
????
????
??????
??????
??????????????????
??????
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OPS????????
????(??????) ? ? ??????????? ????? ? ?
?????????????????????????? ?????? ? ?
??????????????????????? ???????????? ? ?
????????????????????? ??????? ?
????????????????????????
?????? (?????)
????? (???????)
???????? (??????????)
?????
???
?????? (?????????)
??????? (?????????)
??
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?????
1. ??????????????
?????
?????
?????
?????
?????
?????
2. Slow Light???
?????? EIT Electromagnetically Induced
Transparency
0.9µK(?-273?) ?????
300,000km/s ? 28m/s
7090K(-203-183?) ?????Rb
300,000km/s ? 1km/s
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??????MPLS
?????? MPLS???
??????MPLS ??????
IP???
IP???
??????????????????????????
IP????
IP????
IP??????
IP?????????
?????
?????? ????? (IP)
?????? ????? (IP)
?????? ????? (IP)
???1?NW??
MPLS
MPLS
MPLS
???2????
??????MPLS???
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??????MPLS???
MPLS????
?????
?XC???
????
???SW
????
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??????MPLS???
NTT???????????MPLS???
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GMPLS
GMPLS (Generalized MPLS)
NTT?????????????
MPLS???????????????????????
MPLS?IP??????????????????????????????????????????
IP????????????????????????????
????SONET?????????????????????????IP?????????????
?????
MPLS, GMPLS, ??????MPLS???
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??????????
???
1P
?? (bit/s)
1T
WDM p-to-p
p-to-p
??
1G
2000
2005
2010
2015
1995
58
IT??????????
????????? ???????
Web2.0?????
??????
???????BB???????
PC?HDD???CF??????? 100M??????10G Ether??
PC????????????
NHK??????
??????? ???TV??? ???????
???????????????????????
??????TV
????TV??
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??????

• ????????????A4??3????????
• 1. ???????? ??????(OBS, OPS, ??????MPLS)??????????
  ??????????????????
• 2. ?????????????????????????????
• 8?29?????

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