B.TECH - Semester 8 optical integrated circuits Question Paper 2021 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Differentiate : Electrical IC and Optical IC.
- What is planar waveguide?
- Why do you go for doping in substrate material?
- Define Dispersion.
- What is meant by velocity of propagation?
- Differentiate : Electro-optic and acousto optic modulators.
- What is an optical Amplifier?
- Define population inversion in a LASER.
- What is integrated semiconductor LASER?
- Why do we need directional coupler? ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{2} \boldsymbol{=} \mathbf{2 0}$ Marks) P.T.O. Answer one full questions from each Module. Each question carries 20 marks.
- (a) Elaborate on ray optic approach to optical mode theory. 10
- (b) Discuss on basic three layer wave guide. 10
- (a) Elucidate on symmetric and asymmetric waveguides. 10
- (b) Examine the effectiveness of channel and strip loaded waveguides. 10 Module - II
- (a) Critically examine on carrier concentration reduction waveguide. 10
- (b) Demonstrate the process involved in epitaxial growth. 10
- Develop a treatise on polymer and fiber integrated optics. 20 Module - III
- (a) Why do we need waveguide input and output couplers? Explain. 7
- (b) Classify types of couplers. 6
- (c) Describe coupling between waveguides. 7
- (a) Depict the salient features of waveguide modulator. 10
- (b) Present the working of single channel electro optic modulator. 10
- (a) Sketch and highlight the principle of working of monolithic Integrated direct Modulator.
- (b) Enumerate on integrated optical detectors.
- Summarise the factors affecting the performance and principle of Micro optical devices in detail.