Download or read book Vertical Cavity Surface Emitting Lasers written by Terence Edward Sale and published by Wiley-Blackwell. This book was released on 1995 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting from basic principles, this book provides coverage of the operation and design of Vertical Cavity Surface Emitting Lasers (VCSELs). It includes original experimental work, backed up by calculations and theoretical analysis, and reviews work already done in the field.
Download or read book InAlGaP Vertical Cavity Surface Emitting Lasers VCSELs written by and published by . This book was released on 1997 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Al{sub y}Ga{sub 1-y}){sup 1-x}In(subscript x)P semiconductor alloys lattice-matched to GaAs are widely used in visible optoelectronic devices. One of the most recent developments in this area is the AlGaInP-based red vertical cavity surface emitting laser (VCSEL). These lasers, which employ AlGaInP active regions and AlGaAs distributed Bragg reflectors (DBRs), have demonstrated continuous-wave (CW) lasing over the 630--690 nm region of the spectrum. Applications for these lasers include plastic fiber data communications, laser printing and bar code scanning. In this paper, the authors present an overview of recent developments in the processing and performance of AlGaInP based VCSELs. This overview will include a review of the general heterostructure designs that have been employed, as well as the performance of lasers fabricated by both ion implantation and selective oxidation.
Download or read book Analysis and Design of Vertical Cavity Surface Emitting Lasers written by S. F. Yu and published by John Wiley & Sons. This book was released on 2003-09-04 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical, hands-on guidebook for the efficient modeling of VCSELs Vertical Cavity Surface Emitting Lasers (VCSELs) are a unique type of semiconductor laser whose optical output is vertically emitted from the surface as opposed to conventional edge-emitting semiconductor lasers. Complex in design and expensive to produce, VCSELs nevertheless represent an already widely used laser technology that promises to have even more significant applications in the future. Although the research has accelerated, there have been relatively few books written on this important topic. Analysis and Design of Vertical Cavity Surface Emitting Lasers seeks to encapsulate this growing body of knowledge into a single, comprehensive reference that will be of equal value for both professionals and academics in the field. The author, a recognized expert in the field of VCSELs, attempts to clarify often conflicting assumptions in order to help readers achieve the simplest and most efficient VCSEL models for any given problem. Highlights of the text include: * A clear and comprehensive theoretical treatment of VCSELs * Detailed derivations for understanding the operational principles of VCSELs * Mathematical models for the investigation of electrical, optical, and thermal properties of VCSELs * Case studies on the mathematical modeling of VCSELs and the implementation of simulation programs
Download or read book Vertical Cavity Surface Emitting Lasers written by Julian Cheng and published by CRC Press. This book was released on 2000-07-06 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since first coming into existence in the early 90s, the vertical-cavity surface-emitting laser (VCSEL) has made several quantum leaps in performance. The performance of VCSELs now exceeds that of edge-emitting lasers in many respects, and offers a superior optical beam and much easier monolithic integrability. As the VCSEL technology improves furth
Download or read book Current Trends In Vertical Cavity Surface Emitting Lasers written by Tien Pei Lee and published by World Scientific. This book was released on 1995-07-26 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: With significant progress made in recent years, vertical cavity surface emitting lasers (VCSELs) have emerged as potential lightwave sources with a variety of applications, including high speed optical interconnects, parallel data links, optical recording, 2-D scanning, and optical signal processing. This volume, which contains a collection of articles by outstanding experts on this topic, encompasses a broad discussion of the current trends in the development of VCSELs. Discussions include material growths, structure designs, processing methods, performance analysis, improvement strategies, and future prospects. The collection provides a comprehensive overview that may help newcomers to this field as well as engineers and researchers who are engaged in the research and development of this new exciting device family.
Download or read book Selectively Oxidized Patterned InP based Vertical Cavity Surface Emitting Lasers and VCSEL Arrays written by Herte Gebretsadik and published by . This book was released on 1999 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the development of low loss optical fibers over 25 years ago, optical communications has become the system of choice for worldwide communication networks. Some of the many advantages over previous systems include: large transmission bandwidth, immunity to electromagnetic interference, low transmission loss, low weight, low power consumption, and relatively low cost. As multimedia services including the internet, cable television, high definition television (HDTV), and computer links become indispensable in our daily lives, large amounts of data must be transmitted through the information highway. This poses a serious challenge on the current communication network.
Download or read book Vertical cavity Surface emitting Lasers written by and published by . This book was released on 2002 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Single Mode Passive Antiguide Region Vertical Cavity Surface Emitting Laser written by Yong'an Wu and published by . This book was released on 1998 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Efficiency AlInGaP Visible Vertical Cavity Surface Emitting Lasers Incorporating Wafer Fusion and Improved Heat Sinking Phase 1 written by and published by . This book was released on 1996 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red vertical cavity surface emitting lasers (VCSELs) using aluminum indium gallium phosphide (AlInGaP) based active regions are limited in performance by thermally activated carrier leakage, and absorption in aluminum gallium arsenide mirrors. This program seeks to improve performance by flip-chip bonding for better heat sinking. This requires wafer fusion to gallium phosphide substrates. We also improve device efficiency by lateral oxidation. Lastly, we investigate alternative mirror combinations which are transparent to shorter wavelengths.
Download or read book Optical Injection Locking on Vertical cavity Surface emitting Lasers VCSELs written by Xiaoxue Zhao and published by . This book was released on 2008 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Injection locked Vertical Cavity Surface Emitting Lasers VCSELs for Optical Arbitrary Waveform Generation written by Sharad Bhooplapur and published by . This book was released on 2014 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Modulators An array of VCSELs is packaged and characterized for use as a modulator for rapid-update pulse-shaping at GHz rates. The amplitude and phase modulation characteristics of an injection-locked VCSEL are simultaneously measured at GHz modulation rates. 2. Optical Frequency Comb Sources An actively mode-locked semiconductor laser was assembled, with a 12.5 GHz repetition rate, ~ 200 individually resolvable comblines directly out of the laser, and high frequency stability. In addition, optical frequency comb sources are generated by modulation of a single frequency laser. 3. High-resolution optical spectral demultiplexers The demultiplexers are implemented using bulk optics, and are used to spatially resolve individual optical comblines onto the modulator array. 4. Optical waveform measurement techniques Several techniques are used to measure generated waveforms, especially for spectral phase measurements, including multi-heterodyne phase retrieval. In addition, an architecture for discriminating between ultrashort encoded optical pulses with record high sensitivity is demonstrated.
Download or read book Visible Vertical Cavity Surface Emitting Lasers written by James Anthony Lott and published by . This book was released on 1993 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature insensitive Vertical cavity Surface emitting Lasers and Method for Fabrication Thereof written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A temperature-insensitive vertical-cavity surface-emitting laser (VCSEL) and method for fabrication thereof. The temperature-insensitive VCSEL comprises a quantum-well active region within a resonant cavity, the active region having a gain spectrum with a high-order subband (n.gtoreq. 2) contribution thereto for broadening and flattening the gain spectrum, thereby substantially reducing any variation in operating characteristics of the VCSEL over a temperature range of interest. The method for forming the temperature-insensitive VCSEL comprises the steps of providing a substrate and forming a plurality of layers thereon for providing first and second distributed Bragg reflector (DBR) mirror stacks with an active region sandwiched therebetween, the active region including at least one quantum-well layer providing a gain spectrum having a high-order subband (n.gtoreq. 2) gain contribution, and the DBR mirror stacks having predetermined layer compositions and thicknesses for providing a cavity resonance within a predetermined wavelength range substantially overlapping the gain spectrum.
Download or read book Vertical Cavity Surface Emitting Lasers VCSELs and VCSEL Arrays for Communication and Sensing written by Nasibeh Haghighi and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectral Characterization of Vertical Cavity Surface Emitting Lasers VCSELs written by F. Sjöström and published by . This book was released on 1998 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Optical Properties of Active Regions in Vertical Cavity Surface Emitting Lasers Grown by MBE written by K. Reginski and published by . This book was released on 2002 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of vertical cavity surface emitting lasers (VCSELs) requires an understanding of the many different optical parameters of these structures, and the optimization of VCSELs requires deep understanding of the optical processes occurring in the active regions of such lasers. In a series of MBE processes, active regions of VCSELs as well as whole VCSELs were grown. The active regions of the VCSEL structures were designed for lambda = 1000 nanometers and 980 nanometer emission. They consisted of a pair of distributed Bragg reflectors (DBRs) composed of Aluminum Arsenide (AlAs) and Gallium Arsenide (GaAs) quarter wavelength layers and cavities made of GaAs. The cavities contained one or several quantum wells (QWs) made of In(0.2)Ga(0.8)As. To optimize the optical characteristics of the active regions, several experimental methods were applied. The Bragg reflectors and the entire microcavities were investigated by optical reflectivity. For selective excitation of a QW in a cavity active layer, a Ti-sapphire tuneable laser was used. The fine tuning between the QW emission and the cavity Fabry-Perot resonance was investigated by photoluminescence at varying temperatures of the sample. For monitoring the temporal evolution of the luminescence from the active region of the laser, time-resolved spectroscopy was employed. The combination of many methods of optical investigation enabled the authors to conduct a comprehensive characterization of VCSELs and, consequently, an optimization of the whole laser structure. (8 figures, 8 refs.).
Download or read book Vertical cavity Surface emitting Laser VCSEL for 50Gb s NRZ Optical Link in Data Center written by Wenning Fu and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
