This book reports new findings in the fields of nonlinear optics, quantum optics and optical microscopy. It presents the first experimental device able to transform an input Gaussian beam into a non-diffracting Bessel-like beam. The modulation mechanism, i.e. electro-optic effect, allows the device to be fast, miniaturizable and integrable into solid state arrays. Also presented is an extensive study of the superposition of Bessel beams and their propagation in turbid media, with the aim of realizing field that is both localized and non-diffracting. These findings have been implemented in a light-sheet microscope to improve the optical sectioning. From a more theoretical point of view this work also tackles the problem of whether and how a single particle is able to entangle two distant systems. The results obtained introduce fundamental limitations on the use of linear optics for quantum technology. Other chapters are dedicated to a number of experiments carried out on disordered ferroelectrics including negative intrinsic mass dynamics, ferroelectric supercrystals, rogue wave dynamics driven by enhanced disorder and first evidence of spatial optical turbulence.

This graduate-level textbook presents the principles, design methods, simulation, and materials of photonic circuits. It provides state-of-the-art examples of silicon, indium phosphide, and other materials frequently used in these circuits, and includes a thorough discussion of all major types of devices. In addition, the book discusses the integrated photonic circuits (chips) that are currently increasingly employed on the international technology market in connection with short-range and long-range data communication. Featuring references from the latest research in the field, as well as chapter-end summaries and problem sets, Principles of Photonic Integrated Circuits is ideal for any graduate-level course on integrated photonics, or optical technology and communication.

This definitive guide to modern organic electro-optic and photonic technologies provides critical insight into recent advances in organic electro-optic materials, from the underlying quantum and statistical concepts through to the practical application of materials in modern devices and systems. • Introduces theoretical and experimental methods for improving organic electro-optic and photonic technologies • Reviews the central concepts of nonlinear optics, focusing on multi-scale theoretical methods • Provides clear insight into the structure and function relationships critical to optimizing the performance of devices based on organic electro-optic materials. Serving as a primer for the systematic nano-engineering of soft matter materials, this is an invaluable resource for those involved in the development of modern telecommunication, computing, and sensing technologies depending on electro-optic technology. It is also an indispensable work of reference for academic researchers and graduate students in the fields of chemistry, physics, electrical engineering, materials science and engineering, and chemical engineering.

The ever-growing data traffic and super broadband services demanded by the end users have led the wireless communication network to undergo rapid development in terms of capacity, bandwidth, cost and mobility. The low-power, mature lower frequency bands are already congested and offer small capacity in wireless communication. On the other hand, the high capacity high frequency wireless system is inherently power hungry, costly and imposes complicated coverage schemes. This bottleneck has introduced the radio-over-fiber (RoF) system as a viable solution for broadband wireless access networks. The aim of this thesis is to address two major aspects of a broadband wireless access network using a distributed antenna system complemented by a digital coherent optical RoF link: the millimeter-wave (mm-wave) carrier generation at downlink and efficient single sideband (SSB) modulation at uplink and their configuration in electro-optic photonic integrated circuit format. An optical path tracing method is proposed to transform any photonic circuit consisting of linear and time invariant optical components to its parallel counterpart comprising a collection of optical paths, each characterized by the transmission response of the element within it. This method is exploited to address the functionality of a photonic frequency multiplication circuit with a multiplication factor of eight where the time variance is handled by a focus on pure RF carriers and the Jacobi-Anger expansion. The series architecture consisting of four Mach-Zehnder modulator enables its application in a low RF drive condition with similar performance when compared to different functionally equivalent architectures. The concept of a frequency multiplication circuit as a stable, tunable means of millimeter-wave generation can be extended to incorporate polarization modulators instead of conventional Mach-Zehnder modulators due to the fact that the cascade of polarization modulator and polarizer provides an intensity modulator whose biasing condition can be set by the polarizer angle and polarization state of the input light to each polarization modulator. The employment of polarization modulator can avoid DC bias drift and feasible discrete component implementation can be achieved which is important in a research environment to establish the proof of concept. One of the circuits can access the millimeter-wave band for a wide range of modulation index; the other circuit can offer a RF power advantage in a moderate range of modulation index. Both circuits can provide a multiplication factor of eight which enables a low RF frequency source requirement. Simulation using industry standard software tools are used to validate theoretical predictions of the abovementioned circuits and their robustness against non-ideal factors are analyzed. In addition, the frequency translation property of a single sideband modulator based on a generalized Mach-Zehnder interferometer structure consisting of four Mach-Zehnder modulator in parallel is experimentally demonstrated. The multi-functional photonic circuit fabricated on silicon on insulator platform can provide sub-carrier generation, in-phase and quadrature (IQ) modulation and frequency multiplication functionalities in addition to the frequency conversion. The selection of the function is determined by the biasing condition of the modulators and RF drive specification which can be controlled externally. The employment of the multimode interference splitter/combiner can offer DC bias less operation due to its intrinsic phase relationship among the ports providing the necessary optical phase shift. Spatial separation of the up- and down-converted optical output opens the door for remote heterodyning operation. A carrier suppression of >20 dB and spurious sideband suppression > 12 dB relative to the principle harmonics is achieved when the circuit is operated as a frequency shifter with bias voltage tuning only. The generalized Mach-Zehnder interferometer structure can be extended to support in-phase and quadrature modulation for any number of constituent phase modulators, which provide a general theory of in-phase and quadrature modulation. From this theory, the lowest dimension of the interferometer structure is found to be three which implies that a three phase modulator structure, in contrast to the orthodox four phase modulator structure, can provide in-phase and quadrature modulation when the drive signals to the phase modulators are linear combinations of in phase and quadrature component of the signal. A system simulation is used to validate its operation as an in phase and quadrature and single sideband modulator.

Topics covered by this text include imaging, radiometry, source detectors and lasers, with a special emphasis on flux-transfer issues. The author takes a first-order approach so that students and professionals can quickly make the back-of-envelope calculations needed for initial setup of optical apparatus. The target is to help readers solve the practical problems frequently encountered by those new to the field of electro-optics. The text aims to enable readers to answer such questions as: where is the image, how big is it, how much light gets to the detectors, and how small an object is it possible to see?

Diode Lasers and Photonic Integrated Circuits, Second Edition provides a comprehensive treatment of optical communication technology, its principles and theory, treating students as well as experienced engineers to an in-depth exploration of this field. Diode lasers are still of significant importance in the areas of optical communication, storage, and sensing. Using the the same well received theoretical foundations of the first edition, the Second Edition now introduces timely updates in the technology and in focus of the book. After 15 years of development in the field, this book will offer brand new and updated material on GaN-based and quantum-dot lasers, photonic IC technology, detectors, modulators and SOAs, DVDs and storage, eye diagrams and BER concepts, and DFB lasers. Appendices will also be expanded to include quantum-dot issues and more on the relation between spontaneous emission and gain.