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Book Synopsis Ultra-Low Threshold Vertical-Cavity Surface-Emitting Lasers for USAF Applications by : Thomas R. Nelson
Download or read book Ultra-Low Threshold Vertical-Cavity Surface-Emitting Lasers for USAF Applications written by Thomas R. Nelson and published by . This book was released on 2005-01-01 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes research on the development of ultra-low threshold vertical-cavity surface-emitting lasers. This in-house lab task, supported by AFOSR under LRIR 2305DW01, was initiated by Dr. John Loehr, with AFOSR Program Manager Dr. Alan Craig. In 2001, Dr. Thomas Nelson became the in- house project lead on this effort, with AFOSR management transferred first to Dr. Kent Miller, and most recently to Dr. Gernot Pomrenke. This task was initiated in March 1996, and this report covers roughly the time period of March 1996 - December 2002.
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 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 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 Design and Fabrication of 850 and 980 Nm Vertical Cavity Surface Emitting Laser by :
Download or read book Design and Fabrication of 850 and 980 Nm Vertical Cavity Surface Emitting Laser written by and published by . This book was released on 2004 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vertical-cavity surface-emitting lasers (VCSEL) are the most suitable light sources for certain optoelectronic applications because of their planner nature of light emission. VCSELs on GaAs substrates were grown by the molecular beam epitaxy technique. In this report we present detailed procedures to design and fabricate 850-nm top-emitting and 980-nm bottom-emitting VCSELs. First a test structure was grown by the molecular-beam epitaxy (MBE) technique and was characterized by reflectance and photoluminescence techniques. We used a wet oxidation process for current confinement in the laser structure. The VCSELs have low threshold current, low voltage drop and hence are suitable for hybridization onto silicon MOS circuits.
Book Synopsis Advances in Vertical Cavity Surface Emitting Lasers by : Connie J. Chang-Hasnain
Download or read book Advances in Vertical Cavity Surface Emitting Lasers written by Connie J. Chang-Hasnain and published by . This book was released on 1997 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Fabrication of 850 and 980 Nm Vertical Cavity Surface Emitting Laser by : N. C. Das
Download or read book Design and Fabrication of 850 and 980 Nm Vertical Cavity Surface Emitting Laser written by N. C. Das and published by . This book was released on 2004 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vertical-cavity surface-emitting lasers (VCSEL) are the most suitable light sources for certain optoelectronic applications because of their planner nature of light emission. VCSELs on GaAs substrates were grown by the molecular beam epitaxy technique. In this report we present detailed procedures to design and fabricate 850-nm top-emitting and 980-nm bottom-emitting VCSELs. First a test structure was grown by the molecular-beam epitaxy (MBE) technique and was characterized by reflectance and photoluminescence techniques. We used a wet oxidation process for current confinement in the laser structure. The VCSELs have low threshold current, low voltage drop and hence are suitable for hybridization onto silicon MOS circuits.
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 2001 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering Vertical-cavity Surface-emitting Lasers for High-speed Operation by : Yu-Chia Chang
Download or read book Engineering Vertical-cavity Surface-emitting Lasers for High-speed Operation written by Yu-Chia Chang and published by ProQuest. This book was released on 2008 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: With all these improvements, our 3mum demonstrated a very low threshold current of 0.14 mA and a high differential quantum efficiency of 54%. This indicates that the static performance was not noticeably degraded by these modifications for high-speed operation. On the other hand,> 20 GHz bandwidth, the highest for 980 nm VCSELs, was achieved at just 2 mA. A data rate of 35 Gb/s was demonstrated with only 10 mW power dissipation, corresponding to the highest data-rate/power-dissipation ratio of 3.5 Gbps/mW for any laser sources.
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 Design and Characterization of Optically Pumped Vertical Cavity Surface Emitting Lasers by :
Download or read book Design and Characterization of Optically Pumped Vertical Cavity Surface Emitting Lasers written by and published by . This book was released on 1992 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vertical Cavity Surface Emitting Lasers (VCSELs) are a form of semiconductor laser which have their cavity oriented orthogonally to the plane of the wafer. The orientation necessitates short cavities, highly reflective mirrors and a relatively high gain/loss ratio. Even so, the resultant superior exit beam characteristics and the tight packing density of the finished lasers provide strong motivation for pursuing the growth of these structures. This thesis details the design of an optically pumped InGaAs multiple quantum well periodic gain structure VCSEL with a 950 nm lasing wavelength. These growths were to be a first attempt at VCSEL construction, so part of this study included verification of the quality of the parts of the finished design. These measurements required the construction of a laboratory configuration to optically pump VCSELs and characterize them by spectral reflectivity, output beam polarization, mode, lasing wavelength, and optimal pump wavelength. Analysis of the characteristics for several VCSELs obtained from the University of Arizona, and the back mirror grown locally, illustrate tile ability to use measured data and theoretical spectral reflectivity calculations to determine the quality of the growths.
Book Synopsis Vertical Cavity Surface Emitting Lasers for Optical Signal Processing and Optical Computing Applications by :
Download or read book Vertical Cavity Surface Emitting Lasers for Optical Signal Processing and Optical Computing Applications written by and published by . This book was released on 1994 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final technical report outlines the development of Vertical-Cavity Surface-Emitting Lasers (VCSELs) for use in high-speed parallel data links. During this contract, Optical Concepts has produced VCSELs with greatly improved performance, and has developed packaging technologies for VCSELs. VCSELs have been developed that operate at greater than 5 GHz with sub-milliamp threshold currents. With low turn on delays, these devices have demonstrated GHz data rates with no pre-bias. VCSEL arrays have been incorporated into high-speed, parallel1 fiber coupled packages. Optical Concepts has demonstrated packages using both top and bottom emitting VCSELs, and has developed an integrated microlens technology to ease packaging tolerances.
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 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vertical Cavity Surface Emitting Laser by : Yih-Yuh Doong
Download or read book Vertical Cavity Surface Emitting Laser written by Yih-Yuh Doong and published by . This book was released on 1995 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Vertical-cavity Surface-emitting Lasers for Frequency Standard Applications by : Christopher Long
Download or read book Characterization of Vertical-cavity Surface-emitting Lasers for Frequency Standard Applications written by Christopher Long and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vertical Cavity Surface Emitting Lasers by : Philip Dowd
Download or read book Vertical Cavity Surface Emitting Lasers written by Philip Dowd and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Nonlinear Effects in Optically Pumped Vertical Cavity Surface Emitting Lasers by : Scott L. Brown (CAPT, USAF.)
Download or read book Characterization of Nonlinear Effects in Optically Pumped Vertical Cavity Surface Emitting Lasers written by Scott L. Brown (CAPT, USAF.) and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
