Exam Details
| Subject | Opto Electronics Communication Systems | |
| Paper | ||
| Exam / Course | Diploma In Electronics And Communication Engineering (DECVI)/ Advanced Level Certificate Course In Electronics And Communication Engineering (ACEVI)/ | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2015 | |
| City, State | new delhi, |
Question Paper
1. Discuss the basic optical laws and define the terms relating to optical fibre communication. Also give the basic structure of an optical fibre cable.
Define single-mode and multi-mode optical fibre.
Define 'Numerical aperture' and 'Acceptance angle' of a fibre.
Define 'Step-Index' fibre and 'Graded-Index' fibre.
Calculate the refractive index of the core and the cladding materials of an optical fibre for which Numerical Aperture =0·35 and A =0·01.
Define radiative losses and 'core and cladding' losses of an optical fibre.
Calculate the loss of an optical fibre in dB/km whose length is 100 m and is fed with an optical power of 10 MW and the output power is 7·5 MW.
5. Briefly discuss the primary optical sources. Explain the three basic processes involved in the operation of LED.
What is the need of LASER diode Briefly discuss its operating principle.
Enlist the comparison between LED and LASER diode.
Name three optical detectors. Also discuss the characteristics of photodiodes.
List the advantages, disadvantages and applications of Avalanche Photo-detector.
8. Discuss the following terms associated with photo-detectors
Responsivity
Quantum efficiency
Dark current
Detectivity
9. Explain the digital receiver performance calculation based on bit error rate.
Define single-mode and multi-mode optical fibre.
Define 'Numerical aperture' and 'Acceptance angle' of a fibre.
Define 'Step-Index' fibre and 'Graded-Index' fibre.
Calculate the refractive index of the core and the cladding materials of an optical fibre for which Numerical Aperture =0·35 and A =0·01.
Define radiative losses and 'core and cladding' losses of an optical fibre.
Calculate the loss of an optical fibre in dB/km whose length is 100 m and is fed with an optical power of 10 MW and the output power is 7·5 MW.
5. Briefly discuss the primary optical sources. Explain the three basic processes involved in the operation of LED.
What is the need of LASER diode Briefly discuss its operating principle.
Enlist the comparison between LED and LASER diode.
Name three optical detectors. Also discuss the characteristics of photodiodes.
List the advantages, disadvantages and applications of Avalanche Photo-detector.
8. Discuss the following terms associated with photo-detectors
Responsivity
Quantum efficiency
Dark current
Detectivity
9. Explain the digital receiver performance calculation based on bit error rate.
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Advance Microprocessor And Architecture
- Analog And Mixed Mode Vlsi Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas And Propagation
- Applied Electronics
- Audio and Video Engineering
- Basic Telematics
- Basics Of Electronics Engineering
- Bio Informatics
- Circuits and Networks
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Data Structures
- Device Modelling For Circuit Simulation
- Digital Communication
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Dip- ECE PCB Design & Testing
- Electromagnetic Field Theory
- Electronic Measurement And Instrumentations
- Electronic Measurement and Instruments
- Electronic Product Design
- Electronic Switching Circuits
- Embedded System Design
- Industrial Electronics
- Information Theory And Coding
- Linear Integrated Circuits
- Maintenance Of Electronic Equipment
- Micro Controller
- Micro Controllers
- Microelectronics Technology
- Microprocessor
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Modeling And Testing Of Digital Systems
- Multirate Systems
- Nano - Electronics
- Optical Fiber Communication
- Opto Electronics Communication Systems
- Power Electronics
- Principles of Communication Engineering
- Quantum Communication
- Rf Circuits
- Satellite And Tv Engineering
- Signal Compression
- Signals And Systems
- Technical English
- Television Engineering
- Wireless Communication