Polarization Mode Dispersion (PMD) is regarded as a major limitation in ultra hi gh speed optical transmission systems due to the pulse broadening that it induce s. This work presents computer based simulations for PMD compensation at 10Gb/s, investigating electronic PMD compensation based on three approaches depending on the value of the differential group delay (DGD). First, it is found that for a low DGD value, launching the signal through one of the known input P SP of the ber will compensate for PMD, which is according to the theory that th e bandwidth of the PSP is higher than the bandwidth of the signal for a low DGD value. Secondly, for a medium DGD value, second order PMD will have a signicant effect and then launching the signal along only one of the input PSP will not b e enough for PMD compensation. In order to compensate for higher order effects, we propose electronic signal predistortion along one of the input PSP. Electroni c signal predistortion is found to be able to compensate all high orders of PMD, but it requires the knowledge of all ber characteristics, and this is the limitation of this method, since practically not all ber characteri stics are known. Practical measured parameters of the PMD characteristics are th e variation of the DGD and PSP versus frequency and thus the variation of the PM D.A second order PMD compensation method is investigated, where bers with corr elated second order PMD vectors have correlated predistorted signals. Thus the p redistorted signal for one of the bers will compensate for the second order PMD of the others, and this method has shown to be very effective for bers with me dium DGD value. Thirdly, a high DGD value corresponds to higher PMD orders which exceed second order, then each ber will require its own predistort ed input signal and hardly a correlation can be found with other bers. Finally, blind PMD compensation is investigated assuming that the original PSP is not kn own, and special input states of polarization (SOP) distributed homogeneously on the Poincare sphere are specified through which the signal is launched.

"In recent years, evolution of technology has contributed a major role in the field of optical communication systems. There is an ever growing demand for transmitting signals at higher data rates and compensating the transmission impairments simultaneously. Speed of the signal transmission down the optical fiber is limited by transmission impairments that are characterized as linear or nonlinear losses. In my thesis, I lay a special emphasis on linear loss especially chromatic dispersion and it's effect on an optical signal down the fiber and study the compensation techniques in an electrical domain challenging the methods employed in an optical domain. In this digital world, there is an increase in the evolution of electrical components such as high speed memory units and low power consumption models. Electrical domain provides advantages in terms of processing the signal in a cost effective way and achieving the similar results with respect to the optical domain. In addition to the analysis, my investigation includes the effect of noise present in optical fiber communication systems and limitations of electrical components in achieving the compensation."--Abstract.

This book contains a series of tutorial essays on polarization mode dispersion (PMD) by the leading experts in the field. It starts with an introductory review of the basic concepts and continues with more advanced topics, including a thorough review of PMD mitigation techniques. Topics covered include mathematical representation of PMD, how to properly model PMD in numerical simulations, how to accurately measure PMD and other related polarization effects, and how to infer fiber properties from polarization measurements. It includes discussions of other polarization effects such as polarization-dependent loss and the interaction of PMD with fiber nonlinearity. It additionally covers systems issues like the impact of PMD on wavelength division multiplexed systems. This book is intended for research scientists or engineers who wish to become familiar with PMD and its system impacts.

Volume 2 of TERB 3ed covers the convergence of telephony and data transport, including wireless networks. Now that data is becoming the predominant source of traffic more efficient multiplexing schemes and more flexible control methods are needed in the transport network, such as giving the customer the ability to call for bandwidth on demand. With the development of control methods for switched data services it is now recognised that improved ways to control the transport network are possible and standards initiatives are taking place to establish and improve the network control layer. Detailed explanation of propagation in wireless and optical fibre systems requires a substantial amount of mathematics, also covered in this volume. For each of the math chapters there is an explanation of why the mathematics is important, where it is applied and references to other chapters.

Optical Fiber Telecommunications V (A&B) is the fifth in a series that has chronicled the progress in the research and development of lightwave communications since the early 1970s. Written by active authorities from academia and industry, this edition not only brings a fresh look to many essential topics but also focuses on network management and services. Using high bandwidth in a cost-effective manner for the development of customer applications is a central theme. This book is ideal for R&D engineers and managers, optical systems implementers, university researchers and students, network operators, and the investment community. Volume (A) is devoted to components and subsystems, including: semiconductor lasers, modulators, photodetectors, integrated photonic circuits, photonic crystals, specialty fibers, polarization-mode dispersion, electronic signal processing, MEMS, nonlinear optical signal processing, and quantum information technologies. Volume (B) is devoted to systems and networks, including: advanced modulation formats, coherent systems, time-multiplexed systems, performance monitoring, reconfigurable add-drop multiplexers, Ethernet technologies, broadband access and services, metro networks, long-haul transmission, optical switching, microwave photonics, computer interconnections, and simulation tools. Biographical Sketches Ivan Kaminow retired from Bell Labs in 1996 after a 42-year career. He conducted seminal studies on electrooptic modulators and materials, Raman scattering in ferroelectrics, integrated optics, semiconductor lasers (DBR , ridge-waveguide InGaAsP and multi-frequency), birefringent optical fibers, and WDM networks. Later, he led research on WDM components (EDFAs, AWGs and fiber Fabry-Perot Filters), and on WDM local and wide area networks. He is a member of the National Academy of Engineering and a recipient of the IEEE/OSA John Tyndall, OSA Charles Townes and IEEE/LEOS Quantum Electronics Awards. Since 2004, he has been Adjunct Professor of Electrical Engineering at the University of California, Berkeley. Tingye Li retired from AT&T in 1998 after a 41-year career at Bell Labs and AT&T Labs. His seminal work on laser resonator modes is considered a classic. Since the late 1960s, He and his groups have conducted pioneering studies on lightwave technologies and systems. He led the work on amplified WDM transmission systems and championed their deployment for upgrading network capacity. He is a member of the National Academy of Engineering and a foreign member of the Chinese Academy of Engineering. He is a recipient of the IEEE David Sarnoff Award, IEEE/OSA John Tyndall Award, OSA Ives Medal/Quinn Endowment, AT&T Science and Technology Medal, and IEEE Photonics Award. Alan Willner has worked at AT&T Bell Labs and Bellcore, and he is Professor of Electrical Engineering at the University of Southern California. He received the NSF Presidential Faculty Fellows Award from the White House, Packard Foundation Fellowship, NSF National Young Investigator Award, Fulbright Foundation Senior Scholar, IEEE LEOS Distinguished Lecturer, and USC University-Wide Award for Excellence in Teaching. He is a Fellow of IEEE and OSA, and he has been President of the IEEE LEOS, Editor-in-Chief of the IEEE/OSA J. of Lightwave Technology, Editor-in-Chief of Optics Letters, Co-Chair of the OSA Science & Engineering Council, and General Co-Chair of the Conference on Lasers and Electro-Optics. For nearly three decades, the OFT series has served as the comprehensive primary resource covering progress in the science and technology of optical fiber telecom. It has been essential for the bookshelves of scientists and engineers active in the field. OFT V provides updates on considerable progress in established disciplines, as well as introductions to new topics. [OFT V]... generates a value that is even higher than that of the sum of its chapters.