Download or read book Dispersion Engineering Silicon Nitride Waveguides for Broadband Nonlinear Frequency Conversion written by Jörn Philipp Epping and published by . This book was released on 2015 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Fabrication of Dispersion engineered Thin film LiNbO3 Waveguide for Broadband Optical Parametric Oscillator written by Yumeng Zhang and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical frequency comb (OFC) generation has captured strong interest for various applications. Researchers are currently working on applications of combs in optical atomic clocks to telecommunications, studies of ultrafast dynamics and quantum computing, spectroscopy and secure optical communications systems. An on-chip optical frequency comb generator would be attractive because of its light weight and low power consumption, and further applications in cutting-edge equipment such as satellites. In the meanwhile, in pursuit of accurate measurement in a wide frequency range, for example in broadband dual-comb Fourier transform spectroscopy and optical coherence tomography, the large overall bandwidth of the OFC is desired. Lithium niobate offers many attractive properties for the broadband OFC including wide transparency window, high refractive index, and high second order susceptibilities. Thin-film lithium niobate waveguides have been used in a platform of compact photonic integrated circuits recently for a second harmonic generation because of its high nonlinear property. However, due to the large waveguide dispersion and group velocity mismatch, previous optical parametric oscillators using lithium niobate achieve limited performance. This problem can be tackled by dispersion engineering which can flatten the waveguide dispersion by carefully choosing the material and designing the waveguide structure. In this thesis, we design a synchronously pumped degenerate optical parametric oscillation (SPDOPO) with dispersion-engineered thin-LiNbO3-on-insulator waveguides to generate 2/3 octave OFC from 1291nm to 1937nm wavelength. A silicon nitride strip-loaded on thin-film lithium niobate waveguide is designed and simulated and achieved lower than 60 ps/nm/km dispersion in 2/3 octave wavelength range. The OPO simulation with this waveguide design shows 61% conversion efficiency. The design of 90-degree turn and couplers in OPO resonator is simulated and discussed. Periodically poled lithium niobate, as the nonlinear medium with quasi-phase-matching in OPO, is fabricated and characterized, and shows some indications of periodic lithium niobate domain inversion.
Download or read book Engineering and Utilizing Nonlinear and Electro optic Properties of Silicon and Silicon nitride Waveguides written by Rajat Sharma and published by . This book was released on 2019 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon is the primary candidate for the advancement of integrated photonics due to its prevalence within the electronics industry. One of the material's most notable shortcomings, however, is its centrosymmetry, which causes it to lack a second-order nonlinear susceptibility, disallowing electro-optic modulation based on the Pockels effect [1]. To circumvent this complication, research efforts involving electro-optic modulation in silicon waveguides have instead exploited the free-carrier plasma dispersion effect, in which a change in the concentration of holes and electrons, generated by an electrical current, leads to deviations in both the real and imaginary parts of a semiconductor's index of refraction [2-4]. Additionally, some work over the past decade has been devoted to exploring the strain-induced second-order nonlinear susceptibility in silicon [5-10]. By deforming silicon's diamond lattice in an asymmetric way, it is possible to remove the material's centrosymmetry, thereby generating a second-order nonlinearity within the material [5]. In recent works, values as high as 330 pm/V have been reported for the [chi](2) coefficient in strained silicon waveguides [6]. Recently, however, it has been found that strained silicon's electro-optic effect is roughly quadratic in nature, rather than linear, as would be expected for the Pockels effect [7]. Furthermore, many demonstrations of strained silicon's nonlinear properties have incorrectly assumed that the electric field, used to control silicon's index of refraction, penetrates strongly into the semiconductor waveguide itself [6-10], and this is known to have led to inaccurately reported nonlinear coefficients. Instead, the observed behavior in strained silicon waveguides is now thought to be due to the capacitively-induced free-carrier effect, which has already been used to demonstrate high-bandwidth modulation [11-16]. Similarly, the wavemixing observed in the literature for strained silicon waveguides has been attributed largely to electric field-induced second-harmonic generation [17].
Download or read book Nonlinear Photonics written by Hyatt M. Gibbs and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear photonics is the name given to the use of nonlinear optical devices for the generation, communication, processing, or analysis of information. This book is a progress report on research into practical applications of such devices. At present, modulation, switching, routing, decision-making, and detection in photonic systems are all done with electronics and linear optoelectronic devices. However, this may soon change, as nonlinear optical devices, e.g. picosecond samplers and switches, begin to complement optoelectonic devices. The authors succinctly summarize past accomplishments in this field and point to hopes for the future, making this an ideal book for newcomers or seasoned researchers wanting to design and perfect nonlinear optical devices and to identify applications in photonic systems.
Download or read book Advanced Nanomaterials and Their Applications written by N. Madhusudhana Rao and published by Springer Nature. This book was released on 2023-05-12 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises select proceedings of the International Conference on Advanced Nanomaterials and Applications (ICANA 2022) and presents recent developments in the fields of nanoscale sciences. The topics covered in this book include energy storage and conversion, bio- and healthcare materials, sensors and actuators, functional materials, optical materials, and computational and simulation methods. This book is useful for researchers and professionals working in the various fields of nanotechnology.
Download or read book Fundamentals of Optical Waveguides written by Katsunari Okamoto and published by Elsevier. This book was released on 2010-08-04 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Optical Waveguides is an essential resource for any researcher, professional or student involved in optics and communications engineering. Any reader interested in designing or actively working with optical devices must have a firm grasp of the principles of lightwave propagation. Katsunari Okamoto has presented this difficult technology clearly and concisely with several illustrations and equations. Optical theory encompassed in this reference includes coupled mode theory, nonlinear optical effects, finite element method, beam propagation method, staircase concatenation method, along with several central theorems and formulas. Since the publication of the well-received first edition of this book, planar lightwave circuits and photonic crystal fibers have fully matured. With this second edition the advances of these fibers along with other improvements on existing optical technologies are completely detailed. This comprehensive volume enables readers to fully analyze, design and simulate optical atmospheres. - Exceptional new chapter on Arrayed-Waveguide Grating (AWG) - In-depth discussion of Photonic Crystal Fibers (PCFs) - Thorough explanation of Multimode Interference Devices (MMI) - Full coverage of polarization Mode Dispersion (PMD)
Download or read book The Supercontinuum Laser Source written by Robert R. Alfano and published by Springer Science & Business Media. This book was released on 2006-02-14 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of a classic in the field has been expanded and enriched with new content and updated references. The book covers the fundamental principles and surveys research of current thinkers and experts in the field with updated references of the key breakthroughs over the past decade and a half.
Download or read book Emerging Waveguide Technology written by Kok Yeow You and published by BoD – Books on Demand. This book was released on 2018-08-01 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, the rapid development of radiofrequency (RF)/microwave and photonic/optical waveguide technologies has had a significant impact on the current electronic industrial, medical and information and communication technology (ICT) fields. This book is a self-contained collection of valuable scholarly papers related to waveguide design, modeling, and applications. This book contains 20 chapters that cover three main subtopics of waveguide technologies, namely RF and microwave waveguide, photonic and optical waveguide and waveguide analytical solutions. Hence, this book is particularly useful to the academics, scientists, practicing researchers and postgraduate students whose work relates to the latest waveguide technologies.
Download or read book Silicon Photonics II written by David J. Lockwood and published by Springer Science & Business Media. This book was released on 2010-10-13 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is volume II of a series of books on silicon photonics. It gives a fascinating picture of the state-of-the-art in silicon photonics from a component perspective. It presents a perspective on what can be expected in the near future. It is formed from a selected number of reviews authored by world leaders in the field, and is written from both academic and industrial viewpoints. An in-depth discussion of the route towards fully integrated silicon photonics is presented. This book will be useful not only to physicists, chemists, materials scientists, and engineers but also to graduate students who are interested in the fields of micro- and nanophotonics and optoelectronics.
Download or read book Coplanar Waveguide Circuits Components and Systems written by Rainee N. Simons and published by John Wiley & Sons. This book was released on 2004-04-07 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date coverage of the analysis and applications of coplanar waveguides to microwave circuits and antennas The unique feature of coplanar waveguides, as opposed to more conventional waveguides, is their uniplanar construction, in which all of the conductors are aligned on the same side of the substrate. This feature simplifies manufacturing and allows faster and less expensive characterization using on-wafer techniques. Coplanar Waveguide Circuits, Components, and Systems is an engineer's complete resource, collecting all of the available data on the subject. Rainee Simons thoroughly discusses propagation parameters for conventional coplanar waveguides and includes valuable details such as the derivation of the fundamental equations, physical explanations, and numerical examples. Coverage also includes: Discontinuities and circuit elements Transitions to other transmission media Directional couplers, hybrids, and magic T Microelectromechanical systems based switches and phase shifters Tunable devices using ferroelectric materials Photonic bandgap structures Printed circuit antennas
Download or read book Silicon Photonics Design written by Lukas Chrostowski and published by Cambridge University Press. This book was released on 2015-03-12 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This hands-on introduction to silicon photonics engineering equips students with everything they need to begin creating foundry-ready designs.
Download or read book The Properties of Optical Glass written by Hans Bach and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the reviews: "The book should be acquired by all libraries with an interest in glass science and applications...the title will endure for many years as the standard work on the properties of optical glass." Optical Systems Engineering
Download or read book Frequency Resolved Optical Gating The Measurement of Ultrashort Laser Pulses written by Rick Trebino and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Frequency-Resolved Optical-Gating (FROG) technique has revolutionized our ability to measure and understand ultrashort laser pulses. This book contains everything you need to know to measure even the shortest, weakest, or most complex ultrashort laser pulses. Whether you're an undergrad or an advanced researcher, you'll find easy-to-understand descriptions of all the key ideas behind all the FROG techniques, all the practical details of pulse measurement, and many new directions of research. This book is not like any other scientific book. It is a lively discussion of the basic concepts. It is an advanced treatment of research-level issues.
Download or read book Nanoscale Devices written by Brajesh Kumar Kaushik and published by CRC Press. This book was released on 2018-11-16 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary aim of this book is to discuss various aspects of nanoscale device design and their applications including transport mechanism, modeling, and circuit applications. . Provides a platform for modeling and analysis of state-of-the-art devices in nanoscale regime, reviews issues related to optimizing the sub-nanometer device performance and addresses simulation aspect and/or fabrication process of devices Also, includes design problems at the end of each chapter
Download or read book Laser Resonators written by Alexis V. Kudryashov and published by SPIE Press. This book was released on 1999 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resonator can be considered the real heart of any laser system, the key element that determines the properties of laser radiation, including mode structure or temporal and spatial characteristics. The theory of different laser types has been well-developed in the last few decades of the 20th century, starting with the pioneering papers of Fox, Li, Body and Gordon. But today, due to the development of new types of lasers (fibre, diode), new optical elements (adaptive mirrors, phase conjugation techniques, graded phase correctors), the development of optical technology, and new needs for industrial lasers, novel types of resonators are under investigation.
Download or read book Nonlinear Optical Crystals A Complete Survey written by David N. Nikogosyan and published by Springer Science & Business Media. This book was released on 2006-03-21 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Optical Crystals contains the most complete and up-to-date reference material on properties of nonlinear optical crystals including: Traditional and specific applications The mathematical formulas necessary for the calculation of the frequency conversion process A survey of 63 nonlinear optical crystals containing more than 1500 different references with full titles Recent applications of common and novel nonlinear materials, including quasi-phase matching Special consideration for periodically-poled and self-frequency-doubling materials Significant amount of crystallophysical, thermophysical, spectroscopic, electro-optic and magneto-optic information
Download or read book Programmable Integrated Photonics written by José Capmany and published by . This book was released on 2020-02-21 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive, up-to-date and self-contained introduction to the emergent field of Programmable Integrated Photonics (PIP). It covers both theoretical and practical aspects, ranging from basic technologies and the building of photonic component blocks, to designalternatives and principles of complex programmable photonic circuits, their limiting factors, techniques for characterization and performance monitoring/control, and their salient applications both in the classical as well as in the quantum information fields. The book concentrates and focusesmainly on the distinctive features of programmable photonics, as compared to more traditional ASPIC approaches.After some years during which the Application Specific Photonic Integrated Circuit (ASPIC) paradigm completely dominated the field of integrated optics, there has been an increasing interest in PIP. The rising interest in PIP is justified by the surge in a number of emerging applications that callfor true flexibility and reconfigurability, as well as low-cost, compact, and low-power consuming devices.Programmable Integrated Photonics is a new paradigm that aims at designing common integrated optical hardware configurations, which by suitable programming, can implement a variety of functionalities. These in turn can be exploited as basic operations in many application fields. Programmabilityenables, by means of external control signals, both chip reconfiguration for multifunction operation, as well as chip stabilization against non-ideal operations due to fluctuations in environmental conditions and fabrication errors. Programming also allows for the activation of parts of the chip,which are not essential for the implementation of a given functionality, but can be of help in reducing noise levels through the diversion of undesired reflections.
