Important questions in optical communication and networking ec2402 ec 2402 subject for nov
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This document outlines important questions for the course "Optical Communication And Networking" across 5 units. The units cover topics like propagation modes in fibers, fiber splicing and connectors, signal distortion and losses, laser diodes, photodiodes, receivers, and standards like SONET. Key concepts to be explained include mode theory, waveguide dispersion, material dispersion, LEDs, lasers, noise effects, and the architecture of SONET networks.
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3. Define modulation and demodulation.
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2018a 1324654jhjkhkhkkjhk
This project report describes implementing a peer-to-peer DNS service using Chord, a distributed hash table. Key points:
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4. Compare the features of coaxial cable with those of twin-axial cable.
5. What do you understand by cable impedance?
6. Describe electrical interference in video transmission.
7. What do you understand by grounding problem?
8. Describe the principle of slow-scan transmission.
9. How does an optical fiber transmits light signal?
10. List the features of fiber-optic transmission.
11. What is(are) the difference(s) between step-index and graded-index fibers?
12. What do you understand by multimode fiber transmission?
13. Define coupling efficiency.
14. Describe the functions of fiber-optic transmitter.
15. Describe the features of microwave transmission.
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17. What is the difference between scrambling and encryption?
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This is the presentation of the list of experiments in optical communication.
Technical Report Comparative Analysis of Photodetectors for Appropriate Usage...
Photodetectors have found useful applications in various power and electronic fields such as in microwave power amplifications and fibre optic data communications. Different types of photodetectors, especially the PIN photodiodes and Avalanche photodiodes, are the most useful photodetectors in microwave and fibre optic communications. In this paper, the authors x rayed the different types of photodetectors, the photodetectors' principles, the fiber optic communication architecture and principles and finally carried out the comparative analysis of PIN and Avalanche photodiodes. Obodoeze Fidelis Chukwujekwu | Obiokafor Ifeyinwa Nkemdilim "Technical Report: Comparative Analysis of Photodetectors for Appropriate Usage in Optical Communication Applications" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-6 , October 2021, URL: https://www.ijtsrd.com/papers/ijtsrd46406.pdf Paper URL : https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/46406/technical-report-comparative-analysis-of-photodetectors-for-appropriate-usage-in-optical-communication-applications/obodoeze-fidelis-chukwujekwu
optical fibre
This document provides an overview of optical fibers, including their structure, working principles, evolution and applications. It begins with definitions of optical fibers and how they guide light via total internal reflection. It then discusses the history and development of optical fibers, leading to lower attenuation rates. The document describes different types of optical fibers based on modes and refractive indices, and components of optical fiber communication systems. It covers advantages and disadvantages of optical fibers compared to other media. Finally, it lists several applications of optical fibers such as telecommunications, computer networks, medical and more.
Abstract Fiber Optics
This document discusses the past, present, and future of fiber optic communication technology. It provides an overview of the basic principles and evolution of fiber optic systems over multiple generations. Future trends discussed include all optical networks, multi-terabit transmission using dense wavelength division multiplexing, intelligent optical networks, ultra-long haul transmission, improvements in laser and amplification technologies, advancement of submarine network configurations, and continued miniaturization of components. Fiber optic communication capacity and capabilities are expected to continue growing to meet rising bandwidth demands.
Em and optics project 3 (1st) converted
This document is a lab report submitted by Ashok Kumar Sahoo for the course Electromagnetism & Optics at the Indian Institute of Technology Kharagpur. The report discusses experiments and measurements performed with optical fibers and optoelectronic devices. In the first part, experiments are described to analyze the working of single mode and multimode optical fibers by calculating properties like numerical aperture, bending loss, and splice loss. The second part analyzes the characteristics of various optoelectronic devices including solar cells, light dependent resistors, LEDs, phototransistors, photodiodes, and optocouplers. Basic theories of total internal reflection, optical fibers, and these components are also outlined.
Optical fiber by debraj maji
This document discusses optical fibers, including their history, structure, working principle, classification, applications, advantages, and disadvantages. Optical fibers guide light and are made of glass or plastic. They were first demonstrated in the 1840s and used for image transmission in the 1920s. An optical fiber has a core and cladding, with the core having a higher refractive index to allow total internal reflection of light. Optical fibers are classified by mode and refractive index profile. They transmit data with high bandwidth and security over long distances at low power. However, initial installation costs are high. Optical fibers now have applications in telecommunications, broadband, medicine, and more.
Guru vashist report
This document provides an overview of optical fibers used in communication systems. It discusses the history of optical fiber communication and how total internal reflection allows light to propagate along the fiber. The key components of an optical fiber are the core and cladding. Optical fibers can be classified based on the materials used, number of modes supported, and refractive index profile. Optical fibers play an important role in modern communication systems by providing high bandwidth data transmission over long distances.
OPTICAL_FIBRE_COMMUNICATION.pptx
This document provides an overview of optical fiber communication topics including:
1. Fundamentals such as the basic components of an optical communication system and advantages of optical fiber over copper wire.
2. Types of optical fibers including single mode, multi-mode, step index, and graded index fibers. It describes the principles of total internal reflection and modal dispersion.
3. Additional optical fiber topics like construction and common components, parameters to evaluate fiber performance such as attenuation and dispersion, and basic test instruments.
Optical fibercommunictionsystem
This document provides an overview of optical fibers, including their evolution, structure, workings, classification, communication systems, advantages, and applications. It discusses how optical fibers were developed from 1880 to the 1980s when they became the backbone of long-distance phone networks. The core and cladding structure is described, along with how total internal reflection guides light through fibers. Fibers are classified by mode and refractive index. Key aspects of optical fiber communication systems and factors that cause attenuation are also summarized.
For presentation
1. The document describes an optical communications course that aims to help students understand optical fiber communications.
2. The key topics covered include the construction and characteristics of optical fibers, optical signal sources and detectors, signal distortion in fibers, and the design of optical systems and wavelength division multiplexing (WDM).
3. The course objectives are for students to understand the significance of optical fiber communications and be able to analyze fiber parameters, design optical systems, and understand signal propagation and detection.
Optical fiber communication system Important paper
This document provides an overview of optical fibers, including their evolution, structure, working principles, classification, communication systems, advantages/disadvantages, and applications. It discusses how optical fibers were developed from the 1880s to become the backbone of long-distance phone networks in the 1980s. The core and cladding structure is explained, as well as how total internal reflection guides light through fibers. Applications include telecommunications, space, broadband, computing, industrial, medical, and military uses.
Iv ec 1
The document provides details of the study and evaluation scheme for the 8th semester of the B.Tech program in Electronics Engineering at G.B. Technical University in Lucknow, India. It lists the courses offered, including Wireless and Mobile Communication, Electronics Switching, and a project. It provides information on the evaluation scheme including sessions, exams, credits for each course. It also includes syllabus details for some courses and lists of open and departmental electives available to students.
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Important questions in optical communication and networking ec2402 ec 2402 subject for nov
- 1. Important Questions in Optical Communication And Networking NOV/DEC 2011 EC2402 Optical Communication And Networking UNIT I 1. Discuss the propagation modes in single -mode fiber 2. Discuss the mode theory of circular waveguide. 3. What are the fiber modes? Explain mode theory for optical fibers in detail. UNIT II 1. Explain various types of fiber splicing techniques and fiber connectors. 2. Discuss the signal distortion in single mode fibers. 3. Discuss various kinds of losses that an optical signal might suffer while propagating through fiber, Which is most important one? What is the effect of these losses on light power and pulse shape? 4. Derive the expression for wave guide dispersion. 5. Derive an expression for material dispersion. UNIT III 1. Draw the structures of edge-emitting LED and surface emitting LED and explain the operation 2. Discuss the LASER diode principle , modes and threshold conditions 3. Draw the schematics of pin photodiode and APD and explain 4. Derive the internal quantum efficiency and shows the variation in threshold current with temperature for ILD UNIT IV 1. Explain the error sources of fundamental receiver operations. Discuss the performance of digital receiver by defining the probability of error. 2. Describe the noise effects on the optical receiver performance? 3. Explain fiber diameter and numerical aperture measurements. 4. Discuss the fundamentals of receiver operations with neat block diagram UNIT V 1. Explain the architecture and layers function of SONET with neat diagram? 2. Explain the Ultra high capacity WDM systems 3. Explain the basic frame structure and network architecture of SONET 4. Explain the salient feature of solitions using relevant expressions and diagrams.