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Bistable Vertical Cavity Surface Emitting Laser Structures On Gaas And Si Substrates
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Book Synopsis Bistable Vertical-Cavity Surface-Emitting Laser. Structures on GaAs and Si Substrates by :
Download or read book Bistable Vertical-Cavity Surface-Emitting Laser. Structures on GaAs and Si Substrates written by and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research performed under this contract centers around the study and development of semiconductor microcavity lasers in the GaAs/AlGaAs/InGaAs material system. In addition, theoretical modeling is developed to study the influence of small cavities on laser performance. In the course of this work we have developed and studied bistable vertical-cavity surface-emitting lasers (VCSELs) fabrication processes to realize low-threshold microcavity lasers, and detailed modeling describing the influence which the semiconductor microcavity exerts over the spontaneous emission and lasing characteristics. I believe that our best and most interesting results have been achieved in our last year of funding. Since they build heavily on our earlier two years of research I will focus this final report on these results achieved in the final year.
Book Synopsis Vertical Cavity Surface Emitting Lasers by : Terence Edward Sale
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.
Book Synopsis Research report on vertical cavity surface emitting lasers by : Elias D. Towe
Download or read book Research report on vertical cavity surface emitting lasers written by Elias D. Towe and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vertical-Cavity Surface-Emitting Lasers by : Julian Cheng
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
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Trends In Vertical Cavity Surface Emitting Lasers by : Tien Pei Lee
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.
Book Synopsis Vertical-cavity Surface-emitting Lasers by :
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:
Book Synopsis Selectively Oxidized Patterned InP-based Vertical Cavity Surface Emitting Lasers and VCSEL Arrays by : Herte Gebretsadik
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.
Book Synopsis Emerging Optoelectronic Technologies and Applications by : Yu-Hwa Lo
Download or read book Emerging Optoelectronic Technologies and Applications written by Yu-Hwa Lo and published by World Scientific. This book was released on 1997 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses some of the most important emerging optoelectronic technologies foreseen to have major technical and business impact in the future. In this spirit, four general technological areas have been selected: optoelectronic display, optical micro-electro-mechanical systems (MEMS), semiconductor lasers for wireless and loop applications, and optoelectronic integration technologies. In each of the four areas, two review articles that provide the technical background and sample some of the most significant recent breakthroughs were authored by the well regarded experts in the field. This book is meant to provide timely information to professionals in optoelectronics, electronics, communications, sensing, and computer areas who want to keep up with the rapidly developing and increasingly diverse optoelectronic technologies.
Book Synopsis Single Mode Passive Antiguide Region Vertical Cavity Surface Emitting Laser by : Yong'an Wu
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:
Book Synopsis Vertical-Cavity Surface-Emitting Lasers by : Carl W. Wilmsen
Download or read book Vertical-Cavity Surface-Emitting Lasers written by Carl W. Wilmsen and published by Cambridge University Press. This book was released on 2001-11-12 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 1999, provides a comprehensive description of the physics, design, fabrication, characterization, and applications of vertical-cavity surface-emitting lasers.
Book Synopsis Development of Visible Vertical Cavity Surface Emitting Lasers by : Timothy M. Calvert
Download or read book Development of Visible Vertical Cavity Surface Emitting Lasers written by Timothy M. Calvert and published by . This book was released on 2001 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: As coaxial cable networks rapidly approach their data carrying limit an alternative method of data solution to this problem is needed to cope with the demand for high data rates. A low cost solution to this problem is to transmit data in parallel via cheap multimode plastic fibre ribbons and to use monolithic arrays of red VCSELs as the optical transmitters. VCSELs' intrinsic high speed, planar geometry and circular beam profile make them ideally suited for such systems. Other commercial applications include bar code readers, laser printing, visible displays (such as head up displays) and the automotive and aerospace industry. Visible VCSELs suffer from excess heating due to several factors. In particular the top p-doped A1GaAs distributed Bragg reflector (DBR) mirror presents a high series resistance due to the large valance band offset leading to strong Ohmic heating and poor thermal impedance. This situation is amplified by the stipulation that the VCSEL is bonded down with the p-doped mirror uppermost, which further increases the thermal impedance of the packaged laser.To overcome these problems this work considers methods of extracting the heat generated internally by examining different fabrication schemes. By means of a thermal model developed, the optimum fabrication parameters with regard to mesa diameter and substrate thickness that provide the most efficient heat extraction from the devices are determined. The use of substrate etch back and wafer-bonding techniques will allow the VCSEL to be processed on alternative substrates such as Si which will improve the device heat sinking due to silicon's good thermal conductivity. In addition, the ability to fabricate VCSELs on Si increases the feasibility of integration with Si CMOS electronics.This work has produced devices emitting at 668 nm (20°C) with record heat sink temperature operation up to 80°C and over 1 mW single mode output power at 20°C. Devices emitting at 665 nm and 675 nm have been fabricated, producing multimode output powers at 20°C of 2 mW and 2.8 mW respectively. Bondable VCSELs have been successfully transferred to non GaAs substrates with no deterioration of performance. A six-element array operating at 675 nm capable of being butt coupled to 125 ~m diameter fibre has produced over 12 mW output power at 20°C with no evidence of thermal cross talk between elements in the array.
Book Synopsis Visible Vertical Cavity Surface Emitting Lasers by : James Anthony Lott
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 Physics Briefs written by and published by . This book was released on 1992 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bistable Vertical Cavity Surface Emitting Lasers by :
Download or read book Bistable Vertical Cavity Surface Emitting Lasers written by and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work takes both theoretical and experimental paths in the study of how optical microcavities influence light emission from semiconductors. Computer simulation is used to guide the development of physical models for spontaneous and stimulated emission under the cavity influence, with experimental demonstrations used as tests of the models and to gain further insight. Initial experimental device results have demonstrated that bistability can be achieved in the VCSEL, but the source of the bistability has not been clearly defined as of yet in our experimental work. We have demonstrated the usefulness of our particular device design, as evidenced in our optical switching to achieve optical memory, described in Publications 1 and 6. An intriguing possibility for the source of the bistability lies in the details of an optically thin gain region and its placement in the Fabry-Perot microcavity. The bistability then might arise due to changes in the field overlap with the gain region when the device bias is increased from below lasing to above threshold.
Book Synopsis Long Wavelength Vertical Cavity Surface Emitting Lasers Using Wafer-bonded A1As/GaAs DBR Mirrors and Strain-compensated Multiple Quantum Well Gain Media by : Christopher L. Chua
Download or read book Long Wavelength Vertical Cavity Surface Emitting Lasers Using Wafer-bonded A1As/GaAs DBR Mirrors and Strain-compensated Multiple Quantum Well Gain Media written by Christopher L. Chua and published by . This book was released on 1996 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
