Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of...

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Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico Professore: Dott. Ing. Alessandro Busacca

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Page 1: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Digital Optical Networks using Photonic Integrated Circuit (PICs)address the challenge of

Reconfigurable Optical Networks

Tesina di:

Sebastiano D'Amico

Professore:

Dott. Ing. Alessandro Busacca

Page 2: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Introduzione

Avvento WDM OEO conversion Costi elevati Consumo di potenza

Nascita delle All-Optical Networks

Sviluppo OADM Scarsa Riconfigurabilità

Superamento del problema grazie alle ROADM networks

Page 3: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Benefici delle reti ROADM

Possibilità di riconfigurare la rete in maniera remota Possibilità di aggiungere o prelevare λ diverse Maggiore semplicità nella progettazione delle reti

Page 4: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Limitazioni delle reti All-Optical ROADM

Vulnerabilità al wavelength blocking

Necessità di switching esterni per la gestione di λ e sub-λ

Utilizzazione di muxponder

Page 5: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Wavelength blocking

1.Si utilizzano nuovi sistemi che consentono un maggior numero di λ

2.Si ricorre alla OEO conversion

Page 6: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

OEO conversion

Page 7: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

OEO conversion

Page 8: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Large scale PICs (Photonic Integrated Circuits)

Ibridi Monolitici (InF)

Page 9: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Large scale PICs (Photonic Integrated Circuits)

Range di temperatura compreso tra 20°C e 85°C

Page 10: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Large scale PICs (Photonic Integrated Circuits)

Page 11: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

PICs and Digital Optical Networks

• Sub-wavelength multiplexing• Add/Drop switching• Digital performance monitoring• Digital diagnostic • Bit Error Rate Test (BERT)• Embedded software

intelligence GWPLS

Page 12: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Bandwidth Virtualization

Decoupling of services from wavelengths

Sub-lambda services Multiple services types and

protocols Improved Bandwidth

Efficiency

Page 13: Digital Optical Networks using Photonic Integrated Circuit (PICs) address the challenge of Reconfigurable Optical Networks Tesina di: Sebastiano D'Amico.

Conclusioni

Le digital Optical Network consentono:

Di combinare l'alta capacità di trasporto WDM con i benefici della conversione nel dominio elettrico

Di superare le limitazioni imposte dalle reti totalmente ottiche

La possibilità di utilizzare software intelligenti

Una maggiore flessibilità

La possibilità di attuare nuovi servizi come: il digital multicasting e il dynamic mesh restoration.


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