Module 1.7 Optical Waveguides and Fibers
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This module is an introduction to the basics of fiber optics, discussing especially the characteristics of optical fibers with regards to the fabrication of low-loss optical fibers and the room-temperature operation of semiconductor lasers in 1970. Within a brief span of 30 years, we are now in the fifth generation of optical fiber communication systems. Recent developments in optical amplifiers and wavelength division multiplexing (WDN) are taking us to a communication system with almost “zero” loss and “infinite” bandwidth. Optical fiber communication systems are now fulfilling the increased demand on communication links, especially with the proliferation of the Internet. This module tracks the evolution of these systems that are now so critical to our daily lives.
Description
This module is an introduction to the basics of fiber optics, discussing especially the characteristics of optical fibers with regards to the fabrication of low-loss optical fibers and the room-temperature operation of semiconductor lasers in 1970. Within a brief span of 30 years, we are now in the fifth generation of optical fiber communication systems. Recent developments in optical amplifiers and wavelength division multiplexing (WDN) are taking us to a communication system with almost “zero” loss and “infinite” bandwidth. Optical fiber communication systems are now fulfilling the increased demand on communication links, especially with the proliferation of the Internet. This module tracks the evolution of these systems that are now so critical to our daily lives.
Audience: Educators, students
Level: College
Author: Ajoy Ghatak and K. Thyagarajan, Department of Physics, Indian Institute of Technology, New Delhi, Indi
