To Study losses in Optical Fiber, Measurement of Propagation Loss, Measurement of Bending Loss. Study of characteristics of Fiber Optic LED & Detector, Measurement of Numerical Aperture. Study of Frequency Modulation & Demodulation using Fiber Optic Link. Setting up a Fiber Optic Digital Link, Study of Modulation & Demodulation of light source by PWM, Study of Modulation & Demodulation of Light source by PPM, Setting up a Fiber Optic Voice Link.