Mention any four applications of optical fibers. (CBIT-2025)1M
Explain the construction and working principle of He-Ne laser with neat energy level diagram.(CBIT–2025 & 2024)5M
Write a short note on population inversion.(CBIT–2025)5M
Classify the optical fibers based on the refractive index profiles. (CBIT-2025)5M
List and explain the main components of fiber optic communication system.(CBIT-2025)5M
Year – 2024
Give an example of each atomic laser and molecular laser. (JNTUH–Jan/Feb 2024)1M
Which optical fiber is used for long distance communication? (JNTUH–Jan/Feb 2024)1M
Define population inversion in LASER. (CBIT–June 2024)2M
Describe construction and working mechanism of Argon ion Laser. (JNTUH–Jan/Feb 2024)5M
Write a note on optical fiber for communication system. (JNTUH–Jan/Feb 2024)5M
With neat diagram, explain Nd:YAG laser system. (JNTUH–Jan/Feb 2024)5M
Explain construction of optical fiber. (JNTUH–Jan/Feb 2024)5M
What are the applications of LASER in our daily life? (CBIT–June 2024)5M
Categorize Optical fibers based on their refractive index profile. (CBIT–June 2024)5M
Obtain equations for Numerical aperture and Acceptance angle. (CBIT–June 2024)5M
Explain the construction and working principle of He-Ne laser with neat energy level diagram. (CBIT-2024)5M
Write a short note on population inversion. (CBIT-2024)5M
List and explain the main components of fiber optic communication system. (CBIT-2024)5M
Year – 2023
Define numerical aperture. (JNTUH–Sep 2023)1M
Can we obtain light amplification in the absence of stimulated emission?(JNTUH–Sep 2023)1M
What is total internal reflection?(JNTUH–Mar 2023)1M
What is acronym LASER?(JNTUH–Mar 2023)1M
List any four applications of lasers. (CBIT–March 2023)2M
Differentiate between three level and four level lasers by giving suitable examples. (JNTUH–Sep 2023)5M
Discuss merits and demerits of single mode optical fibers. (JNTUH–Sep 2023)5M
Specify three types of possible energy transitions between two atomic energy levels and also derive conditions for Einstein’s coefficients. (JNTUH–Sep 2023)5M
Light gathering capacity of an optical fibre is 0.479. If relative core cladding index difference is 0.005, calculate the refractive index of cladding if the outside medium is air. (JNTUH–Sep 2023)5M
Describe construction and working mechanism of Nd:YAG laser. (JNTUH–Mar/Apr 2023)5M
Discuss construction and working principle of Argon ion Laser. (JNTUH–Mar/Apr 2023)5M
Derive an expression for acceptance angle numerical aperture.(JNTUH–Mar/Apr 2023)5M
Explain the construction and working of Ruby laser. (CBIT–March 2023)5M
Develop an expression for numerical aperture. (CBIT–March 2023)5M
Build the relation between Einstein’s coefficients. (CBIT–March 2023)5M
Explain pulse dispersion in fiber optic communication. (CBIT–March 2023)5M