Introductory book for undergraduate Electrical Engineering and Electronics Technology courses covering Fiber Optics. This new and revised Fifth Edition of Fiber Optic Communications incorporates coverage of significant advances made in the fiber industry in recent years to present a comprehensive and in-depth introduction to the basics of communicating using optical fiber transmission lines. Students will learn system design as well as operating principles, characteristics, and application of the components that comprise fiber-optic systems. Communications theory, electronics, and optics-Developed as needed. Numerous illustrations and worked examples. Over 200 homework problems-Includes answers to selected problems at the end of the book. Solutions manual-Contains full solutions to all homework problems, suggestions for teaching the course, and a list of suggested lab experiments. Wide range of topics-Includes fiber lasers and optical amplifiers, vertical-cavity surface-emitting laser diodes, dense wavelength-division multiplexing, fiber Bragg grating technology, new component descriptions (fiber attenuator, circulator, and polarization controller), new phenomena descriptions (polarization mode dispersion, mode-partition noise), and power penalty. Expanded discussions of additional topics-Including polarization effects in fiber systems, integrated optic components, practical fiber connectors and how to minimize reflections. NEW - New and expanded topics-Includes Raman amplifier, erbium-doped waveguide amplifier, the arrayed waveguide grating, electroabsorption modulator, optical micro-electro-mechanical (MEMs) components, dispersion compensation, tunable light sources, tunable filters, optical time-division multiplexing, dense and course wavelength-division multiplexing, increased utilization of the optical spectrum, and emphasis on external modulation. NEW - A new table showing the most current spectral band classification scheme. NEW - Descriptions of small form factor connectors and non-adhesive splices. NEW - Updated and revised material throughout-Reflects the most recent changes in the fiber industry. Improves clarity of the presentation. NEW - 52 new problems-Includes a variety of problems to give the students practice and confidence in understanding the material. NEW - 32 new bibliography entries-Provides resources for further study. NEW - 8 new worked examples. NEW - Companion Website (www.eas.asu.edu/~palais) -Gives students and instructors access to software that illustrates fiber-related phenomena and aids analysis and design. NEW - Instructor CD-ROM available-Contains software from the Companion Website and PowerPoint slides that cover much of the textbook material. NEW - Student CD-ROM available-Contains animations of fiber optic simulations.