Optical Network Design Tool

1
Optical Network Design Tool
Project Group Vaidhehi Lakshmiraman Vishwanath
Gurav Instructor Dr. Byrav Ramamurthy
2
Motivation of the work

• Optimizing amplifier placements in a Multi-
  Wavelength optical LAN/MANThe equally powered
  wavelength case Byrav Ramamurthy, Jason Iness,
  Biswanath Mukharjee, Univ. Of California
  Davis.

3
Reasons for Data Loss In Optical Communication

• Attenuation loss due to distance
• Dispersion Inter-symbol Interference,
  limits bit spacing, Reduce maximum
  transmission rate in fiber optic
  channel.
• Non-linear effects Attenuation,
  Distortion, cross-channel interference
• Polarization dependent losses

4
Solution Use Amplifiers

• Periodically regenerate signals
• No need to convert to electrical to optical
  conversion.
• Electro-optical amplifiers are cheaper,
  simpler, and more reliable.

5
How it works Basic Idea.
6
Our Approach

• Find the output power using cascading amplifiers.
• - Unidirectional Amplifiers
• - Source to destination unidirectional link.

7
Steps of Implementation of our Simulation

• Create Topology Module

8
Topology

• Screen shot of amplifier behavior

9
Technical Details

• Topology Used NSFNETEquation for Calculating
  Output Power at ReceiverPout Pin - ALPin
  Input from Transmitter.Pout Power of signal at
  receiver side.L Distance of Amplifier from
  SourceA Attenuation Constant

10
Results and evaluation
11
Conclusion Future work

• Thus this simulation provides successful results
  according to the amplifier position in the NSFNET
  topology. The position change of amplifier
  changes the output at the destination side and as
  well as at the intermediate receivers coming in
  the way.
• A dynamic network can be created or imported to
  implement the cascading amplifiers effect.
• Further, more than 1 route and 1 wavelength at
  the source side can be considered to compute the
  value of the output power.

12

• Questions??