Download or read book Characterization of Strained Quantum Well Tunneling Injection and Separate Confinement Heterostructure Lasers written by Howard Yoon and published by . This book was released on 1996 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory and Design Application of Strained Separate confinement Heterostructure Quantum Well Lasers written by Tso-Min Chou and published by . This book was released on 1995 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strained Layer Quantum Wells and Their Applications written by M. O. Manasreh and published by CRC Press. This book was released on 1997-12-23 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor devices based on lattice mismatched heterostructures have been the subject of much study. This volume focuses on the physics, technology and applications of strained layer quantum wells and superlattices, featuring chapters on aspects ranging from theoretical modeling of quantum-well lasers to materials characterization and assessment by the most prominent researchers in the field. It is an essential reference for both researchers and students of semiconductor lasers, sensors and communications.
Download or read book Fabrication and Characterization of Lasers and Phase Modulators with Strained Quantum Well and Quantum Box Active Regions written by Hsiang-Chih Sun and published by . This book was released on 1993 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research study primary interest ; to optimize and implement low dimensional structures into the design of lasers and modulators, to minimize a number of existing problems associated with these devices, and to investigate the possibility of monolithic integration of a laser and a modulator on the same chip.
Download or read book Quantum Well Lasers written by Peter S. Zory and published by Academic Press. This book was released on 1993-04-13 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides information on all aspects of QW lasers, from the basic mechanism of optical gain, through the current technological state of the art, to the future technologies of quantum wires and quantum dots. Those working with lasers, especially semiconductor lasers, should find the book useful.
Download or read book Investigation of Quantum Dot Lasers written by and published by . This book was released on 2004 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first demonstration of room-temperature operation of self-assembled quantum dot (QD) lasers about a decade ago, there have been great strides in improving the characteristics and performance of these lasers. They currently match or surpass the performance of quantum well lasers. However, there are unique problems that limit the performance of conventional separate confinement heterostructure (SCH) QD lasers compared to what is expected from "ideal" lasers with near singular density of states. In the study reported here, unique insights and solutions to these problems are demonstrated and reliable quantum dot lasers that surpass quantum well lasers in performance characteristics are developed. By utilizing the concepts of tunnel injection and p-doping, 1.0 micrometer and 1.3 micrometer quantum dot lasers with high differential gain, modulation bandwidth ^25GHz, a factor less than unity, and zero chirp have been achieved. This final report summarizes the successful design, fabrication, and characterization of high performance 1.0 micrometer QD-Distributed-Feedback (DFB) lasers, 1.0 micrometer QD-Tunnel-Injection lasers (undoped and p-doped), and 1.3 micrometer p-doped QD lasers. The authors have demonstrated record performance of these unique devices in terms of differential gain, modulation bandwidth, temperature dependence, chirp, and linewidth enhancement factor. (16 figures, 14 refs.).
Download or read book Modeling and Characterization of Strained Quantum well Lasers and Modulators written by Chih-Sheng Chang and published by . This book was released on 1996 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strained quantum-well lasers and modulators are studied in this dissertation. Both dc and high-speed performances of these two devices are studied. Theoretical models are developed, and we show very good agreement between the theoretical and experimental results. Strain and quantum size effects on the optical-matrix elements for both TE and TM polarizations of strained quantum wells are studied theoretically, including the spin-orbit coupling. A set of universal curves for the polarization-dependent optical-matrix elements as a function of strain is shown. These curves are very helpful for a quick estimate of the optical-matrix elements for strained quantum-well structures. A complete model with the spin-orbit coupling for strained quantum-well lasers is then presented. Explicit formulas for the momentum-matrix elements are given. The improvement in the threshold current density of tensile strained quantum-well lasers, as compared with that of the unstrained quantum well, is shown to result from the enhanced momentum matrix. The theoretical results show a smaller linewidth enhancement factor for compressively and tensile strained quantum wells than that of the unstrained structure, as has been experimentally observed. Amplified spontaneous emission spectroscopy is used to extract the gain and refractive index spectra systematically. The measured optical gain and refractive index are then compared with our theoretical model for strained quantum-well lasers. We show that a comprehensive theoretical model for calculating the electronic band structure, the optical constants, and the linewidth enhancement factor agrees very well with the experiment. Nonlinear gain coefficients are modeled based on the two-level density matrix formalism. Both spectral-hole burning and carrier beating vibration are included for strained quantum-well structures. Formulas for both self- and cross-polarization nonlinear coefficients are presented. A theoretical model for strained quantum-well modulators including the spin-orbit coupling is then presented. The exciton equation is solved in the momentum space. The symmetrical properties of the exciton Hamiltonian are investigated carefully and shown to reduce the computation time. An interpolation scheme is proposed to properly take into account the continuous exciton states. The strained effects on the performances of modulators are shown and compared with the experimental data.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1996 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summaries of Papers Presented at the Conference on Lasers and Electro Optics written by and published by . This book was released on 1995 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Separate Lateral Confinement Quantum Well Heterostructure Laser written by Christine Y. Woo and published by . This book was released on 2001 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Carrier Dynamics in Quantum Well and Quantum Dot Lasers written by David J. Klotzkin and published by . This book was released on 1998 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tunneling Injection Quantum Well Coupled Quantum Dot Lasers written by Piotr Konrad Kondratko and published by . This book was released on 2003 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Studies of Graded Index Separate Confinement Quantum Well Heterostructure Lasers written by Kevin Francis Brennan and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Speed Strained Quantum Well Lasers and Optoelectronic Devices written by S. Chuang and published by . This book was released on 1999 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate research issues on strained quantum-well optoelectronic devices and their applications for navy needs. This work studies the fundamental physics in strained quantum-well devices such as Fabry Perot (FP) lasers, distributed feedback (DFB) lasers, and vertical cavity surface emitting lasers (VCSELs) through the development of theory and experiment. Integrated optoelectronic devices are also investigated for applications in wavelength division multiplexed (WDM) fiber optic communications systems such as wavelength tunability and wavelength conversion. In this work, we investigate the following areas: a. Comprehensive characterization of fundamental parameters of strained quantum- well lasers, b. Modeling and experiment of integrated laser/modulator devices, c. Modeling and experiment of VCSELs, d. Wavelength conversion using four-wave mixing and cross-phase/gain/absorption modulation, e. Optical gain theory for GaN-based blue-green quantum-well lasers.
Download or read book Proceedings written by and published by . This book was released on 1995 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
