Thapar University 2007 B.E Electronics & Tele-Communication Engineering EC032 - Optical Communication Systems - Question Paper

Roll Number:

Thapar University - Patiala

Department of Electronics and Communication Engineering

8.E. - ECE; (Eighth Semester)    EC - 032: Optical Communication Systems

March 2009; (MST)

TIME: 02 Hours; MM: 25    Name of Faculty: Dr. Amit Kumar Kohli

Note:

1.    Attempt all questions sequentially

2.    All questions carry equal marks

Question No. 1: Describe elliptical polarization of light used in the optical fiber communication. Question No. 2: Compare WDM with DWDM.

Question No. 3: Derive the condition under which optical wave propagates in the waveguide slab.

Question No. 4: If the electric field follows Gaussian distribution E(r) = E₀ exp (-r²/2fK₀²), then calculate the mode field diameter using the Peiermann I! equation.

Question No. 5: Describe propagation modes in the single mode fibers.