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(38,329 articles)
Popular News
Bell Canada Assumes Ownership of Bell West
Aug 3, 2004 — MONTREAL, Aug. 3 -- Bell Canada today assumed 100 percent ownership of Bell West Inc. by purchasing the 40 percent interest held by Manitoba Telecom Services Inc. (MTS) for $645 million. MTS announced in December that it intended to sell its interest in Bell West to Bell Canada. Bell's net disbursement to MTS was $570 million in cash. In accordance with the settlement agreement signed with MTS on June 30, Bell received $75 million in consideration of the early termination of commercial...
Daily News Briefs
Aug 3, 2004 — Pentax Imaging Co. (Survey Division, US) and Pentax Industrial Instruments Co. Ltd. (Survey Division, Japan) have announced an exclusive agreement with Western Latitudes, a Centennial, Colo.-based maker of high-precision measuring and positioning...
JDS Uniphase Buys ADO
Aug 3, 2004 — SAN JOSE, Calif., Aug. 3 -- JDS Uniphase, a supplier of optical components and assemblies for communications and display markets, announced today it has acquired Advanced Digital Optics Inc. (ADO) for approximately $12 million in cash. JDS Uniphase...
TSA Orders L-3 Explosives Detectors
Aug 3, 2004 — NEW YORK, Aug. 3 -- L-3 Communications Security and Detection Systems Inc., a subsidiary of L-3 Communications, announced it has received a $33 million order from the US Transportation Security Administration (TSA) to provide 37 additional eXaminer...
Daily News Briefs
Aug 2, 2004 — Senko Advanced Components (Asia–Pacific) and Telops, a Quebec-based developer of optronic test systems, have announced a private-label agreement under which Senko will offer Telops’ AFC 3000 in-adapter ferrule cleaner in Singapore, Malaysia, India,...
Probe Delays InVision Merger
Aug 2, 2004 — NEWARK, Calif., August 2 -- The acquisition of InVision Technologies by General Electric, which was expected to be completed in July, is being delayed and could be terminated due to an investigation by the Justice Department and the Securities and...
Fiber Optic Component Makers Announce MSA
Aug 2, 2004 — SAN JOSE, Calif., August 2 -- Fiber optic component manufacturers Bookham Technology, JDS Uniphase, North Light, T-Networks Inc. and TriQuint Optoelectronics have announced a new multisource agreement (MSA) for standardizing 1550-nm, 2.5-Gb/s cooled...
Yb:Y2O3 Ceramic Laser Generates 4.2 W
Aug 1, 2004 — Ceramic lasers may have a dramatic effect on the solid-state laser marketplace because, among other advantages, they promise inexpensive mass production. Several ceramic ion-host combinations have been investigated, including Nd:YAG, Yb:YAG,...
Hollow Fiber Delivers Distortion-Free Femtosecond Pulses
Aug 1, 2004 — Multiphoton fluorescence is an important technique for analyzing living tissue, and fiber optic delivery of the femtosecond pulses enables useful instruments such as miniature microscopes and multiphoton endoscopes. A difficulty generally arises,...
Up-Conversion Fiber Laser Produces Visible Output
Aug 1, 2004 — Lumics GmbH of Berlin has developed a visible-wavelength source based on an up-conversion fluorozirconate (ZBLAN) fiber laser that has emission lines comparable to those from an argon-ion laser. It works by exploiting the absorption of rare-earth...
Two Wells Are Better than One for IR Detectors
Aug 1, 2004 — Researchers at Princeton University in New Jersey have demonstrated that two wells are better than one as far as quantum-well infrared photodetectors are concerned. The key, as demonstrated in prototype devices, lies in making dual wells that are...
Tapered Fabry-Perot Filter Measures Wavelength
Aug 1, 2004 — There are many applications of a simple, elegant technique to separate and measure the wavelengths present in an optical signal. Indeed, an important component of the history of spectroscopy has been the ongoing search for improved approaches to...
Liquid Crystal Electrically Tunes Photonic Crystal Laser
Aug 1, 2004 — In the July 19 issue of Applied Physics Letters, scientists at California Institute of Technology and the Jet Propulsion Laboratory, both in Pasadena, Calif., presented the results of their experiments with the electrical tuning of a photonic...
Photonic Crystal Acts as Visible-Wavelength Superprism
Aug 1, 2004 — Researchers from the University of Southampton and from Mesophotonics Ltd., both in Southampton, UK, have reported the fabrication of a photonic crystal superprism that operates at visible wavelengths. They described the optical element in the July...
Five-Photon Entanglement Could Benefit Quantum Communications
Aug 1, 2004 — Emerging strategies for distributed quantum information processing will require some type of teleportation protocol. One option is open-destination teleportation, where an unknown quantum state of a single particle is teleported onto a superposition...
Nonlinear Behavior in Quantum-Well IR Photodetector Is Studied
Aug 1, 2004 — Although the potential of quantum-well infrared photodetectors for thermal imaging has been known for some time, significantly less research has been focused on the nonlinear behavior of these devices and on the potential applications of that...
Microscale Actuators Drive Macroscale Optical Element
Aug 1, 2004 — A team of engineers has reported the development of a rigid-body motion generator based on a two-dimensional array of deformable micromembrane actuators. The generator has a variety of potential optical applications, including use with tunable...
Eye-Safe Laser Generates 7 W of Average Power
Aug 1, 2004 — Eye-safe lasers with output in the 1.5-µm regime are in demand for rangefinding, lidar and other remote-sensing applications. Most of them have depended on awkward nonlinear optics or on complex cross-excitation pumping schemes to generate 1.5-µm...
Micromachining Yields Compact FT Spectrometers
Aug 1, 2004 — Fourier transform spectroscopy is poised to take the next step forward. Thanks to silicon micromachining techniques, high-resolution spectrometers will soon move out of the lab and into commercial applications. Instruments based on...
Hybrid Laser Process Cuts Medical Stents
Aug 1, 2004 — In recent years, medical stents have revolutionized the treatment of arteriosclerosis and other vascular diseases. Designed to improve blood flow in vessels, these complex mesh tube structures are manufactured from very heat sensitive materials,...
Submillimeter Camera Is Under Development
Aug 1, 2004 — There's more to the night sky than meets the naked eye. Some of the most scientifically fascinating objects and processes aren't visible at all, prompting an interest in submillimeter astronomy, in which imaging is performed at wavelengths of 200 µm...
NIR Imaging Detects Cracks in Silicon Wafers
Aug 1, 2004 — Silicon wafers are the fundamental building blocks of the microelectronics industry. The size of those used in fabricating integrated circuits has steadily increased because larger wafers yield more parts per processing step. As wafers grow to 300...
Small Design Changes Can Pump Up Ti:Sapphire Laser Power
Aug 1, 2004 — Ti:sapphire laser oscillators and amplifiers are the dominant sources for ultrafast applications because they can deliver ultrashort (<100 fs), widely tunable pulses and high pulse energies at various repetition rates. No other active medium,...
The Promise and Challenges of Short-Wave IR Imaging
Aug 1, 2004 — Although applications for the mid- and long-wave thermal bands are well-established, short-wavelength infrared holds great promise for military and commercial imaging applications. But we have work to do. The short-wavelength IR (900 to 1700 nm)...
Plug-and-Play Metrology
Aug 1, 2004 — The field of metrology historically has been saturated with complicated, proprietary solutions. With such specialization, integration of machine vision into an application has been an expensive and often monumental task for the layman. Those who...
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