B.TechSemester 72024-25Optical NetworkKEC073
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Optical Network (KEC073) - AKTU Question Paper 2024-25

B.Tech · Semester 7 · Free PDF Download

This is the official AKTU Optical Network Previous Year Question Paper for B.Tech Semester 7, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 7
Session:2024-25
University:AKTU / UPTU

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Questions Asked in 2024-25

Optical Network (KEC073) — complete question paper · 100 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 10 = 20
  • a
    Differentiate between stimulate d Brillouin scattering and stimu lated Raman scattering
  • b
    Explain the concept of optical packet switching
  • c
    How would you implement a Mach-Zehnder interferometer for wavel ength division multiplexing?
  • d
    What is the principle of operation of optical couplers?
  • e
    Explain the function of the ATM adaptation layer in optical networks
  • f
    How is Quality of Service (QoS) managed in IP networks?
  • g
    Explain the concept of light path topology design in WDM networks
  • h
    What is wavelength division multiplexing (WDM)? 4 K1 i. How would you implement synchronization in an OTDM system? 5 K3 j. Compare optical switching with traditional electronic switching
Section BAttempt any three of the following: 10 x 3 = 20
  • a
    Describe the second-generation optical networks and how they di ffer from first-generation networks. What role does optical packet switching play in these networks?
  • b
    W h a t a r e t h e b a s i c p r i n c i p l e s o f operation for optical couplers , and how is energy conserved during the coupling process?
  • c
    Analyze the differences between SONET/SDH and ATM networks in t erms of their architecture and functionality in optical systems
  • d
    Describe the light path topology design in WDM networks. How do es it affect the routing and wavelength assignment process?
  • e
    Explain the concept of synchronization in optical networks. Why is it important for OTDM systems?
Section CAttempt any one part of the following: 10 x 1 = 10
  • a
    Discuss the transmission basics in optical networks, focusing o n wavelength, frequency, and channel spacing
  • b
    Analyze the nonlinear effects in optical networks. How does sel f-phase modulation and cross-phase modulation impact the performance of optical networks?
  • a
    Compare and contrast the working principles of different types of optical filters
  • b
    What is the impact of crosstalk on optical network performance? H o w c a n crosstalk be minimized in bidirectional optical communication systems?
  • a
    E x p l a i n t h e c o n c e p t o f A T M i n o p t i c a l n e t w o r k s . H o w d o A T M a d a ptation layers function, and why is quality of service (QoS) important in ATM networks?
  • b
    Discuss the routing and forwarding mechanisms in IP networks. How does QoS influence the performance of IP-based optical networks?
  • a
    Discuss the challenges associate d with wavelength assignment in large-scale optical networks
  • b
    Analyze the cost trade-offs involved in designing WDM networks. H o w d o factors such as network topology and wavelength reuse affect th e overall cost and performance?
  • a
    How does burst switching work in optical networks? What are the k e y challenges in implementing optical burst switching systems?
  • b
    Evaluate the feasibility of deploying optical burst switching i n a metropolitan area network (MAN). What are the main challenges and benefits o f this approach?

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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