1. Resource allocation in wavelength division multiplexed (WDM) optical networks.
Given a network topology and a set of connections with requested data rates, the objective is to allocate resources to those connections using optimization/heuristic algorithms while ensuring end-to-end acceptable quality of transmission (QoT).
2. Quantum key distribution based secure optical networks.
Study of QKD based optical networks. The goal is to place quantum repeaters at strategic locations so as to enhance transmission distance.
3. Design of WDM system (4/8 channels) with cascaded EDFAs.
The objective is to design a WDM system with cascaded EDFAs for long distance (e.g., 1000 kms) communication and observe its performance (e.g., BER).
4. Equalization of optical channel strength in a multi-wavelength fiber optic system using attenuators.
For a WDM system, the goal is to set the attenuation such that the power at the receiver remains same.
5. To study the length dependence of attenuation in the given optical fiber.
The objective is to carry out the link-budget analysis for a given fiber (e.g., SMF, 100 kms).

Be able to design the optical system

To learn different multiplexing techniques of optical fiber communication.

1. Analyze and implement optimization/heuristic algorithms for resource allocation in WDM optical networks while ensuring end-to-end Quality of Transmission (QoT).
2. Evaluate the role of QKD in optical networks and strategically place quantum repeaters to enhance transmission distance.
3. Design a multi-channel WDM system with cascaded EDFAs for long-distance communication and assess its performance using metrics like Bit Error Rate (BER).
4. Apply attenuation techniques to equalize optical channel power in a multi-wavelength fiber optic system, ensuring uniform power at the receiver.
5. Conduct link-budget analysis for different fiber types and study the length-dependent attenuation characteristics of optical fibers.

Djafar Mynbaev, Lowell L. Scheiner, Fiber-optic Communications Technology, Pearson College Div (January 1, 2001)

John M. Senior, Optical Fiber Communications: Principles and Practice,, Pearson Education Third edition (1 January 2014)

Zang, Hui, Jason P. Jue, and Biswanath Mukherjee. "A review of routing and wavelength assignment approaches for wavelength-routed optical WDM networks." Optical networks magazine 1, no. 1 (2000): 47-60.