Independent University, Bangladesh Department of Electrical and Electronics Engineering Course Outline Course Title: Optical Fiber Communications Course Code: EEE503/ETE505/CNC602 Summer 2019, Duration: 3.0Hrs M at 18:30-21:30 (section-1), Room: BC 6013 Instructor’s details: Dr. Feroz Ahmed Associate Professor Office: Room- 5009E, Academic Block, Visiting Hours: 15:00-18:00(R) Cell: 01718559922, Email: fahmed@iub.edu.bd Course Objectives: Following the completion of this course, students will obtain the knowledge needed to perform fiberoptic communication system engineering calculations, identify system tradeoffs, and apply this knowledge to modern fiber optic systems. This will enable the students to evaluate real systems and understand the most recent literature in the field of fiber-optic communications. Course Description: Overview of optical fiber communications, optical fibers: Geometrical-optics description, wave propagation, dispersion in single-mode fibers, dispersion induced limitations, fiber losses, nonlinear optical effects, fiber manufacturing; Optical transmitters: basic concepts, light-emitting diodes, semiconductor lasers, control of longitudinal modes, laser characteristics, transmitter design; optical receivers: basic concepts, common photodetectors, receiver design, receiver noise, receiver sensitivity, sensitivity degradation, receiver performance; Lightwave systems: system architecture, power budget and rise-time budget, long-haul systems, sources of power penalty, computer-aided design; optical amplifiers: Basic concepts, SOA, Raman amplifiers, EDFA, system applications; Dispersion management; multichannel systems: WDM lightwave systems, WDM components, system performance issues, TDM, code-division multiplexing; soliton and coherent lightwave systems, COOFDM; optical networks. Course Policy: 1. It is the student’s responsibility to gather information about the assignments and covered topics during the lectures missed. Regular class attendance is mandatory. Points will be taken off for missing classes. Without 70% of attendance, sitting for final exam is NOT allowed. According to IUB system students must enter the classroom within the first 20 minutes to get the attendance submitted. 2. The date and syllabus of quiz, midterm and final exam is already given here, however, announcements will be given ahead of time. There is NO provision for make-up Class Tests. 3. The reading materials for each class will be given prior to that class so that student may have a cursory look into the materials. 4. Students should take tutorials with the instructor during the office hours. Prior appointment is required. 5. Students must maintain the IUB code of conduct and ethical guidelines offered by the school of engineering and computer science. 1 Assessment and Marks Distribution: Students will be assessed on the basis of their overall performance in all the exams, quizzes, and class participation. Final numeric reward will be the compilation of (tentative): Class tests (20%) Assignment (15%) One mid-term test (25%) Final exam (25%) Course project (15%) Grade Conversion Scheme: The following chart will be followed for grading. This has been customized from the guideline provided by the School of Engineering and Computer Science. A A- B+ B B- C+ C C- D+ D F 85 and above 80-84 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 0-40 * Numbers are inclusive Required Text: The course will be based mostly on the following books: 1. Govind P. Agrawal, "Fiber-Optic Communication Systems," John Wiley & Sons, Inc. 2. Gerd Keiser, "Optical Fiber Communications," McGraw-Hill. 3. Rajiv Ramaswami, et. al., “Optical Networks”, Morgan Kaufmann. Audit: Students who are willing to audit the course are welcome during the first two classes and are advised to contact the instructor after that. Note: Plagiarism – that is, the presentation of another person’s thoughts or words as though they were the student’s own – must be strictly avoided. Cheating and plagiarism on exam and assignments are unacceptable. University Regulation and Code of Conduct: Please see the Green Book for further information about academic regulation and policies, including withdrawal and grading, appeals and penalties for plagiarism and academic misconduct. Students with Disabilities: Students with disabilities are required to inform the Department of EEE of any specific requirement for classes or examination as soon as possible. 2 3 Class & Exam Schedule, Topics and Readings: Classes Topics Week 1 Overview of optical fiber communications (OFC) Week 2 Fibers and transmission characteristics (Part-1) Fibers and transmission characteristics (Part-2); Week 3 CLASS TEST 1 Assignment-1: Current Trend of Research in Fiber Nonlinearities Week 4 Optical sources and transmitters Week 5 Optical detectors and receivers Lightwave systems and optical amplifiers (Part-1); Week 6 CLASS TEST 2 Assignment-2: Current Trend of Research in fiber amplifiers/lasers Week 7 Week 8 Midterm Exam Dispersion management; Optical components Learning Outcome 1. Students will be able to know each other 2. Students will learn about the course policy 3. Students will be able to plan for the exams After completing this lecture students are able to : 1. Understand the transmission limits of electrical cables and the need for fibre optics. 2. Be familiar with the different types of optical fibre used in modern telecom networks, their methods of manufacture, and their transmission characteristics. 3. Know how to estimate the bandwidth of step index multimode fibres and how graded index fibres offer improved performance. 4. Be able to solve the propagation equation in a single mode fibre and calculate pulse broadening through the fibre. After completing this lecture students are able to : 1. Know the main optical sources used in communications systems and their main characteristics. After completing this lecture students are able to : 1. Understand the main components that make up the optical receiver, the causes of noise, and how the error performance is predicted. After completing this lecture students are able to : 1. Understand how electronics and optics limit the information capacity of an optical fibre and how the use of WDM systems exploit fibre bandwidth. 2. Understand the main components that comprise a WDM network and their characteristics. 3. Know the basic principles of the erbium doped fibre amplifier, Raman amplifier and how to calculate a simple expression for the nonlinear gain as well as designing of fiber amplifier. -------------------------------------------------------After completing this lecture students are able to: 1. Know what are the main types of dispersion in single mode fibres and their effect on bandwidth. Readings Handout (available on Virtual Learning System) From Textbook 1; Handout (available on Virtual Learning System) From Textbook 1; Handout (available on Virtual Learning System) From Textbook 1; Handout (available on Virtual Learning System) From Textbook 1; Handout (available on Virtual Learning System) From Textbook 1-2; 4 Multichannel lightwave systems (WDM/DWDM); Next generation lightwave systems (Soliton, CO-OFDM); Week 9 CLASS TEST 3 Assignment-3: Current Trend of Research in next generation lightwave systems Week 10 Week 11 Optical Networks; Lab Demonstration CLASS TEST 4 Week 12 Week 13 Project Report and Presentation Final Exam 2. Be able to analyse the propagation of a Gaussian pulse through a dispersive fibre and relate the results to dispersion penalty of the fibre. 3. Understand loss limited transmission and dispersion limited transmission and the idea of power penalty in a fibre optic system. 4. Understand the need for dispersion compensation and the main methods available for dispersion management. 5. Understand the working principle of optical components After completing this lecture students are able to: 1. Understand how to increase channel capacity of lightwave system. 2. Understand current lightwave systems and trend of research for increasing fiber capacity After completing this lecture students are able to : 1. Understand how electronics and optics limit the information capacity of an optical fibre and how the use of WDM systems exploit fibre bandwidth. 2. Understand the main components that comprise a WDM network and their characteristics. After completing this lecture students are able to : 1. Demonstrate hands-on working knowledge of fiber optic components, their handling, measurement, fault analysis, and how they are integrated for information transmission. -------------------------------------------------------------------------------------------------------------------------- Handout (available on Virtual Learning System) From Textbook 1-2; Handout (available on Virtual Learning System) From Textbook 3; Handout (available on Virtual Learning System) Handout (available on Virtual Learning System) -------------- 5