Vertical cavity surface emitting lasers
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ECTC is the premier international conference sponsored by the IEEE Components, Packaging and Manufacturing Society. ECTC paper comprise a wide spectrum of topics, including 3D packaging, electronic components, materials, assembly, interconnections, device and system packaging, optoelectronics, reliability, and simulation.
The Optical Fiber Communication Conference and Exhibition (OFC) is the largest global conference and exhibition for optical communications and networking professionals. For over 40 years, OFC has drawn attendees from all corners of the globe to meet and greet, teach and learn, make connections and move business forward.OFC attracts the biggest names in the field, offers key networking and partnering opportunities, and provides insights and inspiration on the major trends and technology advances affecting the industry. From technical presentations to the latest market trends and predictions, OFC is a one-stop-shop.
The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology.The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems Fabrication and Packaging Mechanical and Physical Sensors Materials and Characterization Design, Simulation and Theory Actuators Optical MEMS RF MEMS Nanotechnology Energy and Power
The IEEE Photonics Conference, previously known as the IEEE LEOS Annual Meeting, offers technical presentations by the world’s leading scientists and engineers in the areas of lasers, optoelectronics, optical fiber networks, and associated lightwave technologies and applications. It also features compelling plenary talks on the industry’s most important issues, weekend events aimed at students and young photonics professionals, and a manufacturer’s exhibition.
2019 Joint Conference of the IEEE International Frequency Control Symposium anEuropean Frequency and Time Forum (EFTF/IFC)
The 33RD European Frequency and Time Forum and the 73rd consecutive meeting of the IEEE International Frequency Control Symposium will be held as a joint conference in Orlando, Florida, USA April 14-18, 2019. The conference will provide information on recent advances and trends on scientific research, development and manufacturing technology in the area of frequency and time and frequency control. A technical exhibition will be held during the conference, which will be hosted at the Caribe Royale Hotel and Convention Center.
The IEEE Transactions on Advanced Packaging has its focus on the modeling, design, and analysis of advanced electronic, photonic, sensors, and MEMS packaging.
This publication covers the theory, design, fabrication, manufacturing and application of information displays and aspects of display technology that emphasize the progress in device engineering, device design, materials, electronics, physics and reliabilityaspects of displays and the application of displays.
Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.
All aspects of optical guided-wave science, technology, and engineering in the areas of fiber and cable technologies; active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; systems and subsystems; new applications; and unique field trials.
Electronics Letters, 2008
2008 International Conference on Photonics in Switching, 2008
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IEEE Journal of Quantum Electronics, 1998
A new type of vertical-cavity surface-emitting laser (VCSEL) is proposed and analyzed to show the possibility of optical pumping from an integrated edge- emitting laser. With this scheme, it may be possible to make VCSEL's of very small dimensions and VCSEL arrays. The laser design utilizes dopant induced intermixing of quantum wells (QW's) to provide different gain regions for the ...
IEEE Photonics Technology Letters, 1998
A two-stage multihop shuffle network is experimentally demonstrated. The system is implemented using two-dimensional multiple-plane wavelength- division-multiplexed (WDM) optical interconnections consisting of an integrated multiple-wavelength WDM transmitting vertical-cavity surface- emitting laser arrays and three wavelength-selective detector arrays. Two-hop data relay of the two-state shuffle network multihop is performed at 622 and 155 Mb/s for a two-wavelength and a three-wavelength fanout, ...
LEOS 1993 Summer Topical Meeting Digest on Optical Microwave Interactions/Visible Semiconductor Lasers/Impact of Fiber Nonlinearities on Lightwave Systems/Hybrid Optoelectronic Integration and Packagi, 1993
Lighting the Way: Optical Sensors in the Life Sciences
Making Orthogonal Transitions with Climbing Mini-Whegs
Nanotechnology For Electrical Engineers
802.24: Vertical Applications TAG
IEEE Magnetics Distinguished Lecture - Can-Ming Hu
ITRI: Technology Advances in Flexible Displays and Substrates
Indoor Vertical Farms: Growing Food Without Sun, Soil or Pesticides
NeuroGrid: Recording action potentials and large-scale network activity from the surface of the brain - IEEE Brain Workshop
IMS 2011 Microapps - A Multi-Level Conductor Surface Roughness Model
Hertz-Class Brillouin Lasing with Nanokelvin Thermal Sensing - William Loh - Closing Ceremony, IPC 2018
Breaking Spectral and Performance Barriers for Diode Lasers - Plenary Speaker, Manijeh Razeghi - IPC 2018
Electrically-Pumped 1.31 μm MQW Lasers by Direct Epitaxy on Wafer-Bonded InP-on-SOI Substrate - Yingtao Hu - Closing Ceremony, IPC 2018
Ching W. Tang, Stephen R. Forrest and Mark E. Thompson receive the IEEE Jun-Ichi Nishizawa Medal - Honors Ceremony 2017
Video Presentation of a Rock Climbing Robot
An IEEE IPC Special Session with Alexander Spott of The Optoelectronics Research Group
Vertical Markets of Fog Computing - Fog World Congress 2018
Quantum Computation - ASC-2014 Plenary series - 4 of 13 - Tuesday 2014/8/12
IMPASS: Intelligent Mobility Platform with Active Spoke System
Technical Program Overview - Antonio Skarmeta - 5G World Forum Santa Clara 2018
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A new type of vertical-cavity surface-emitting laser (VCSEL) is proposed and analyzed to show the possibility of optical pumping from an integrated edge- emitting laser. With this scheme, it may be possible to make VCSEL's of very small dimensions and VCSEL arrays. The laser design utilizes dopant induced intermixing of quantum wells (QW's) to provide different gain regions for the surface and edge-emitting sections. The multimode rate equations are used to evaluate the possibility of such a laser and the roles of the various design parameters are discussed. It is seen that efficient surface photon emission is possible for high vertical-cavity mirror reflectivities and sufficient separation of bandgap energies for the two QW gain regions.
A two-stage multihop shuffle network is experimentally demonstrated. The system is implemented using two-dimensional multiple-plane wavelength- division-multiplexed (WDM) optical interconnections consisting of an integrated multiple-wavelength WDM transmitting vertical-cavity surface- emitting laser arrays and three wavelength-selective detector arrays. Two-hop data relay of the two-state shuffle network multihop is performed at 622 and 155 Mb/s for a two-wavelength and a three-wavelength fanout, respectively.
Multiple-wavelength vertical-cavity surface-emitting InGaAs QW laser (MW- VCSEL) arrays are fabricated using two patterned-substrate growth techniques both in conjunction with a location-resolvable in situ laser reflectometer in a molecular beam epitaxy (MBE) system. A backside pattern on the substrate is used to induce a temperature profile on the growth surface. In the first technique, we used a temperature-dependent growth rate to create MW-VCSEL's, whereas for the second, uniform growth was first performed followed by a temperature-dependent redesorption process to create the thickness gradient required for MW-VCSEL's. We achieved a record wavelength span, accurate and repeatable lasing wavelengths, and reproducible multiple-wavelength VCSEL arrays with high performance. Comparison between the two methods will be discussed.
Microcavity-induced lasing threshold reduction and modulation of the spontaneous emission coherence length with cavity length in an external-cavity resonant-periodic-gain, surface-emitting laser is reported. In contrast to comparing different epitaxial growths, external-cavity operation allows changing the cavity length without affecting material properties as well as arbitrarily long resonator lengths. The transition to the macrocavity domain is observed by extending the cavity length beyond the spontaneous emission coherence length. The maximum change in the spontaneous emission rate induced by the cavity QED effect in the presence of resonant periodic gain is calculated. As expected, for cavities longer than several wavelengths, microcavity Fabry-Perot resonance effects dominate over cavity QED in determining the cavity-normal spontaneous emission power and coherence length. A simple model of the cavity-normal spontaneous emission coherence length and spontaneous emission power emitted from a Gaussian source placed in an ideal Fabry-Perot cavity is consistent with our observations.
We report that the polarization of the emission of an optically pumped vertical-cavity surface-emitting laser (VCSEL) is sensitive to the polarization state of the pump light. By measuring this memory effect for circularly polarized pump light, we determine the normalized relaxation rate of the carrier spin, /spl Gamma//sub s/, which is a vital parameter in current theoretical models of VCSEL polarization. We find /spl Gamma//sub s/=300/spl plusmn/150, a value which is significantly larger than previously estimated. We also observe a memory effect for the orientation of linearly polarized pump light. This signals that, apart from the carrier spin, the VCSEL polarization is also determined by the carrier momentum.
We have demonstrated a GaAs (311)B vertical-cavity surface-emitting laser (VCSEL) with a threshold current as low as 250 μA, which is the lowest value ever reported for that on non-(100) oriented substrates. Also, the fabricated VCSEL shows a stable polarization state for wide during current ranges and a large polarization-mode suppression ratio over 30 dB between the  and  axis modes at 5 mA. The electrical specific resistance of 1.2×10/sup -4/ /spl Omega//spl middot/cm/sup -2/ at the threshold was reasonably low due to carbon autodoping to AlAs in a p-type distributed Bragg reflector (DBR).
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