Lecture1-228a s10

Lecture1-228a s10 - Fiber Optics Lecture #1 John Bowers ECE...

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Fiber Optics Lecture #1 ohn Bowers John Bowers ECE 228A
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228A Course Mechanics structor rofessor John Bowers Instructor : Professor John Bowers Office : Engineering Science Building Room 2221C Telephone : 893-8447 Email : bowers@ece.ucsb.edu Lecture : TTh 12-1:30 pm Office Hours : M4-5, Th3-4 Course Objective: To develop fundamentals of light propagation and amplification in optical fibers and digital transmission in optical amplified links. To understand the evolution of fiber optic links, the underlying technologies and inherent performance limitations. Prerequisites : Undergraduate EM propagation theory and semiconductor physics.
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228A Course Mechanics Textbook : Fiber Optic Communication Systems, Third Edition, 2002, G. P. Agrawal, Wiley Series in Microwave and Optical Engineering, ISBN 0-471- 21571-6 Exams : One midterm and one final Homework : Assigned weekly each Tuesday in class. Due following Tuesday. Late policy: 10% per day late, maximum 3 days late. No grade for more than 3 days late. Grading : Class Participation: 5% Homework: 25% Midterm: 20% roject: 0% Project: 20% Final: 30%
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Overview Course Outline: Lecture 1: Chapter 1 Transmission & Networking Lectures 2-3: Chapter 2 Optical fibers Lecture 4: Chapter 2 Dispersion Lecture 5-6: Chapter 3 Transmitters Lecture 7-9: Chapter 4 Photodetectors and Receivers Lectures 10-11: Chapter 5 Systems Lectures 12-13: Chapter 6 Amplifiers Lecture 14-15: Chapter 7 Dispersion Management ecture 16 7: hapter 8 DM Lecture 16-17: Chapter 8 WDM Lecture 18: Chapter 9 Solitons Lecture 19: Chapter 10 Coherent Systems
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Is Telecom Dead? Should you take a wireless course stead? instead?
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Telecom is not Dead, But the Bubble is Over Source: Bergh CLEO 2005
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Propagation Limits: Attenuation and Dispersion Medium Max Bit Rate Loss at 10 Gbit/s Twisted pair: 100 kbit/s 10 dB/m Coaxial cable: 1 Gbit/s 1 dB/m Microwave waveguide: 1 Gbit/s 0.1 dB/m Optical fiber (0.82 μ m) 1 Gbit/s 0.001 dB/m Optical fiber (1.55 μ m) 100 Gbit/s 0.0002 dB/m The low loss window in optical fiber is from 1.3 to 1.6 μ m and is 50,000 GHz wide.
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What is the driver for Fiber Optics? Number of Internet Accounts The number of Internet accounts will far exceed the human population
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Explosion in Bandwidth Requirements Voice traffic grew at 6%/year Internet traffic grew at 100%/year 920 000: Traffic grew at 6%/year E-mail: 10 bit/s World Wide Web: 1 Mbit/s t t id f i 10 Mbit/
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Lecture1-228a s10 - Fiber Optics Lecture #1 John Bowers ECE...

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