1. BASIC OVERVIEW OF AN ALL OPTICAL INTERNET
11/10/2018
Arun Nirmal

2. Introduction
Presentation on overview of Optical Internet, basic issues and Characteristics and Future Scope by
Arun Nirmal
Dept of EE
11/10/2018
Arun Nirmal

3. Next Generation Internet Infrastructure
Vision of New Internet
Next Generation Internet Infrastructure
Current Internet
Security
QoS
Wireless/Wired
Interworking
Routing
Bandwidth
New Internet
IP addresses
Adoption of IPv6
Optical Internet
Home Networking
much
IP address
space
Enhanced
Internet
Wealthy
Industry
New
Business
Improved
User
Environment
11/10/2018
Arun Nirmal

4. Topics of Discussion Basic Definition of Optical Internet
Purpose of Optical Internet
Technologies and Methods of building optical Internet
Future Scope
11/10/2018
Arun Nirmal

5. What is an Optical Internet?
Any Internet network where the network link layer connections are "dedicated" wavelengths on an Wave Division Multiplexed (WDM) optical fiber directly connected to a high performance network router
The high performance network router replaces traditional ATM and SONET/SDH switching
statistical multiplexing device that controls wavelength access, switching, routing and protection.
11/10/2018
Arun Nirmal

6. Why build an optical Internet
Considerable Debate in Telecom Industry for best technology for transporting IP services.
So IP over ATM and optical IP services will exist in parallel to meet the spectrum of customer requirements for IP networking.
This is true with the advent high density WDM systems which can support a multitude of transport service delivery mechanisms from traditional SONET/SDH services to the new optical ATM and IP architectures.
Internet traffic will continue to grow exponentially. Therefore, for the bulk of traffic all that is required is a "best efforts" or an "ensured" delivery service then high volume IP pipes would seem to be the most appropriate technology.
11/10/2018
Arun Nirmal

7. MOREOVER…
Huge demand for network solutions that provide guaranteed qualities of service and well managed traffic engineering solutions, particularly for mission critical applications.
Efficiencies and cost savings can be gained from single layer management of survivability.
For accommodating the huge anticipated capacity requirements of the Internet, an Optical Internet would be more efficient.
With high density WDM neither the "bell heads" or the "net heads" are losers in the protocol wars. The winner is the customer in terms of increased choice in network offerings, services and cost savings.
11/10/2018
Arun Nirmal

8. Features of All Optical Internet
High Density Wave Division Multiplexing
High Bandwidth
Higher Speed
Fast connectivity
Bit-rate independence with any service or port connectivity up to 10Gb/s
11/10/2018
Arun Nirmal

9. DESIGN COMPONENTS OF OPTICAL NETWORKING
Fiber types
Lasers
Optical Couplers
Electrical repeaters
Transponders
Optical Add Drop Mux
Cross Connects and Switches
WDM Standards and Interoperability
11/10/2018
Arun Nirmal

10. COMPONENTS - OPTICAL ADD/DROP MULTIPLEXERS
11/10/2018
Arun Nirmal

11. COMPONENTS – CROSS CONNECTS
100101
Digital
Control
DWDM out
DWDM in
Purely Photonic Wavelength Cross-connect O
11/10/2018
Arun Nirmal

12. COMPONENTS - OPTICAL COUPLERS
11/10/2018
Arun Nirmal

13. BASIC ARCHITECTURE
Principle designing feature is Use of High Density WDM to deliver individual wavelengths to high performance routers
Wavelengths are coupled and re-coupled from the fiber using WDM Coupler – optical Add–drop Mux
Output and input of the WDM coupler are simple fiber connectors which direct data on the original wavelength to either the traditional SONET or high performance router
11/10/2018
Arun Nirmal

14. Optical IP Municipal Area Network
Municipal area WDM Network products support up to 64 WDM channels up to 80 Km without a repeater
They provide Complete data Transparency
Used to deliver Analog signals such as videos, as well as data on the individual wavelengths
Can provide 150 point to point Connections.
Each channel can support a dedicated Gigabit Ethernet.
11/10/2018
Arun Nirmal

15. Conventional MANs POP POP Point to point SONET technology (WDM + TDM):
ADM
POP
Campus
network
Access
Local
Internet
backbone
Add/Drop
Multiplexer
POP = Point of Presence
Internet
backbone
Local
network
ADM
Access
Campus
POP
Point to point SONET technology (WDM + TDM):
Fixed bandwidth circuits to the POP
Centralized switching at POP:
Logical topology is a star.
11/10/2018
Arun Nirmal

16. CURRENT ISSUES WITH MAN
MAN’s are a Vital Link between WAN and LAN
The Problems of Conventional MANs are
scalability
Ability to handle increasing data traffic (as opposed to voice);
Fast provisioning infrastructure;
Handling future traffic trends such as increasing intra-MAN traffic.
11/10/2018
Arun Nirmal

17. SAMPLE MODEL OF OPTICAL INTERNET - CANADA
11/10/2018
Arun Nirmal

18. FUTURE OF OPTICAL NETWORKS
Optical-layer technology will increase network capacity, allowing network providers to transport more than 40 times the traffic on the same fiber infrastructure.
ultimately lead to lower prices, and competition in the local exchange
Consumers will have access to new high-bandwidth services made possible by the increased capacity afforded by the optical layer.
Services like videoconferencing to the desktop (or home), electronic commerce, and high-speed video imaging, will become commonplace
11/10/2018
Arun Nirmal

19. Conclusion
Their capacity is doubling annually toward a terabit per second per fiber.
Optical Internet networks will provide for simple to manage, high bandwidth services for internet exchanges and local loop facilities.
WDM Networks supporting an Optical Internet and Other services will be a major driver for future network architectures.
This will eventually reduce the cost and complexity of future internet delivery
11/10/2018
Arun Nirmal

20. GLOSSARY ATM asynchronous transfer mode
DWDM dense wavelength division multiplexing
ETDM electronic time division multiplexing
MAN metropolitan-area network
OADM optical add/drop multiplexer
OSNR optical signal-to-noise ratio
OTDM optical time division multiplexing
OXC optical cross-connect
SONET synchronous optical network
11/10/2018
Arun Nirmal

21. References his.etri.re.kr/share/optical.html
oirc.icu.ac.kr
11/10/2018
Arun Nirmal