Frontiers in Guided Wave Optics and Optoelectronics
Date: 25 April 2011, 23:57
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Preface I have great pleasure in introducing this e-book “Frontiers in Guided Wave Optics and Optoelectronics” under the new series Advances in Lasers and Electro Optics being published by IN-TECH Publishers. Guided wave optics and optoelectronics are at the heart of optical communications, optical signal processing, miniaturization of optical components, biomedical optics, defense applications, and so on. The most recent recognition of the importance of this subject has been acknowledged through the conferral of the Noble Prize in Physics for 2009 to Dr. Charles Kao “for groundbreaking achievements concerning the transmission of light in fibers for optical communication". The charter of the Noble Prize states that it is given to “ …. who shall have conferred greatest benefit on mankind”. Optical communication in the last two decades has revolutionized the way information is transferred in terms of instant transmission as well as access especially the Internet. Optical fiber networks are now taken for granted regardless of the scale of access, be it inter-city, inter-continental, metro or local. Transmission loss in silica fibers has been reduced to nearly the lowest possible limit, dispersion of signals in a telecom grade fiber can be highly controlled to a level where signals are transmitted over long distances without any significant impairment, and nonlinearity-induced distortions can be reduced drastically through appropriate fiber design. With all these remarkable achievements, it appeared for a while in the mid-1980s that there would be no further scope for research in optical fibers. However it turned out that new demands arose for specialty fibers, in which dispersion and nonlinearity could be tailored to achieve transmission properties, which are otherwise impossible in conventional fibers. Around this time, the concept of photonic crystals (PhC) was put forward, which eventually led to the development of microstructured optical fibers (MOF), which are also referred by some as photonic crystal fibers (PCF)... Bishnu Pal
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