Digital Signal Processing Multimedia & Optical Communications LaboratoryDigital Signal Processing Multimedia & Optical Communications Laboratory

UNIVERSITA’ ROMA TREUNIVERSITA’ ROMA TRE

Photonic Networks LaboratoryPhotonic Networks LaboratoryGraduate School of EngineeringGraduate School of Engineering

OSAKA UNIVERSITYOSAKA UNIVERSITY

Full-Duplex OCDM-PONFull-Duplex OCDM-PON

E/D

E/D

E/D

1:32splitter

E/D: encoder/decoder

OLT

E/D

E/D

E/D

ONU-1

ONU-2

ONU-32

Sharing one fiber between up- and down-link on the same wavelength

PCT/IT03/000879Dispositivo ottico per la generazione e il processamento simultaneo di codici ottici 30/12/2003

OCDM Tx 1

OCDM Tx 2

OCDM Tx 3

OCDM Tx 4

8

NetworkAnalyze

r

10GbE

PC3

PC4

HDVCamera

HDVCamera

PPG

10.3125GH ｚ:1551nm

DCF

Otemachi50km

InstalledSMF

50kmInstalled

SMF

OCDM Rx 1

OCDM Rx 8

OCDM Rx 2

Koganei

1

3

5

7

9

11

13

15

1:8splitter

ONU-1

ONU-2

ONU-8

:1551nm

Uplink

(xii) (xi) (x) (ix) (viii) (vii)

20 [ps/div] 20 [ps/div] 20 [ps/div] 20 [ps/div] 20 [ps/div] 20 [ps/div]

:1551nm

:1551nm

DPSK signal

Central station (Koganei)Multi-port

Decoder

Multi-portEncoder

OCDM Tx 1

OCDM Tx 2

OCDM Tx 3

OCDM Tx 4

8

1

3

5

79

1113

15

NetworkAnalyzer

10GbE

PC3

PC4

HDVCamera

HDVCamera

PPG

10.3125GH ｚ :1551nmDCF

Otemachi50km

InstalledSMF

50kmInstalled

SMF

PCVOAOCDM Rx

1

OCDM Rx 8

OCDM Rx 2

Koganei

ONU-1

ONU-2

ONU-8

:1551nm

:1551nm

:1551nm

1:8splitter

Central station (Koganei)20 [ps/div] 20 [ps/div] 20 [ps/div] 20 [ps/div] 20 [ps/div] 20 [ps/div]

Downlink

(i) (ii) (iii) (iv) (v) (vi)DPSK signal

TokyoKoganei

OtemachiKoganei

10.3G DPSK-OCDMA 8 users 10.3G DPSK-OCDMA 8 users 100 km field transmission100 km field transmission

Coloured-optical packet switchingColoured-optical packet switching

Figure 3: Experimental set-up and results of 80-Gbit/s optical packet buffering and 100 km transmission.

Pow

er

(a.u.)

Pow

er

(a.u.)

10GbE

AW

G Network Analyzer

Rx.Rx.

Rx.

Rx.

Rx.

Rx.

Rx.

Rx.

8chOP/IP

VOAVOAVOAVOAVOAVOAVOAVOA

VOAVOAVOAVOAVOAVOAVOAVOA

(q),(r)

Egress Edge Node #3

Host #3

MOE VOA

VOA

9.95328GHz Clock

MOD VOA O/E

LN-SW

10GbE

MLLD LN-IM MOE VOA

VOA

PPG(Label)

Network Analyzer

LN-IMMLLD

GSG

MOD VOA O/E

LN-SW

GSG

Tx.Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

8chIP/OP

AW

G

VOAVOAVOAVOAVOAVOAVOAVOA

Tx.Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

8chIP/OP

AW

GA

WG

VOAVOAVOAVOAVOAVOAVOAVOA

VOAVOAVOAVOAVOAVOAVOAVOA

Tx.Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

8chIP/OP

AW

G

VOAVOAVOAVOAVOAVOAVOAVOA

Tx.Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

Tx.

8chIP/OP

AW

GA

WG

VOAVOAVOAVOAVOAVOAVOAVOA

VOAVOAVOAVOAVOAVOAVOAVOA

10GbENetwork Analyzer

Encoder (Label A)

Encoder (Label B)

Decoder (Label A)

Decoder (Label A)

OPS system

Port B-2

(a),(b),(d)(c)

(e),(f),(h)

Ingress Edge Node #1

Ingress Edge Node #2

Host #1

Host #2

LNSW LNSW LNSW

LNSW LNSW LNSW

Scheduler

VOA

VOA

VOA

VOA

VOA

Port B-1

Port A-2

Port A-1

PPG(Label)

Gate

VOA O/E

LN-IM

GSG

VOA O/E

LN-IM

GSG

50 km Fiber

50 km Fiber

-70

-50

-30

-10

10

1544 1554 1564

-70

-50

-30

-10

10

1544 1554 1564

50 km Fiber

50 km Fiber

80 GbpsPacket

80 GbpsPacket

Payload Label A

Payload Label A

(a)

(c)

(b)

(e)

(g)

(f)

(i)

(j)

(k)

(l)

50ns/div

20ps/div

50ns/div

20ps/div

200ps/div

200ps/div

200ps/div

200ps/divPow

er

(dBm)

Pow

er

(dBm)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Wavelength (nm)

Wavelength (nm)

Pow

er

(dBm)

Pow

er

(dBm)

2s/div

2s/div

1s/div

2s/div

1s/div

1s/div

50ns/div

20ps/div

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

Pow

er

(a.u.)

5.40989x10-7IP Packet Loss rate

3,272,693,311 (bps)

Received Bit Rate @EN #3

16,636,191ReceivedIP Packet @EN #3

3,272,695,082 (bps)

TransmittedBit Rate @EN #2

16,636,200TransmittedIP Packet @EN #2

5.40989x10-7IP Packet Loss rate

3,272,693,311 (bps)

Received Bit Rate @EN #3

16,636,191ReceivedIP Packet @EN #3

3,272,695,082 (bps)

TransmittedBit Rate @EN #2

16,636,200TransmittedIP Packet @EN #2

(d)

(h)

(m)

(n)

(o)

(P)

(q)

(r)

(s)

(g)

(k)

(m)

(l)

(j)(i)

Port A-2

Port A-1 Delay 1

Delay 0

Delay 1

Delay 0

(n) (o) (p)

Optical signal Electrical signal

Port A-2

Port A-1

Buffer 1

Buffer 2

Buffer 1

Buffer 2

Packet collision

IRCPhoNeTIRCPhoNeT IRCPhoNeT was created in Pisa, Italy, in March 2001 to answer a major demand for integrating education, basic and applied research in the area of optical networks and technologies.

IRCPhoNeT is the result of a joint effort of Scuola Superiore Sant'Anna, Pisa, with its Centre of Excellence for Information and Communication Engineering (CEIIC), and of CNIT (Consorzio Nazionale Interuniversitario per le Telecomunicazioni), with its National Laboratory for Photonic Networks (LNRF), in collaboration with former Marconi Communications (now Ericsson).

IRCPhoNeTIRCPhoNeT Funding comes from various sources: Italian Government, industrial partners and European Commission. The Centre is actively participating in European Cooperation actions in Scientific and Technical Research (COST), Network of Excellence and Integrated Projects of the 6th European Framework Program.

Optical Networks & Services

Digital Photonics Subsystems

  Ultra-Fast All-Optical Subsystems  

Optical Systems  

Optical Amplification & Sensing  

Optical Transmission Theory & Techniques