Features

Technology Takes a Front Seat in Automakers’ Latest Models

While the latest news surrounding the U.S. auto industry continues to be focused on slumping sales and production cutbacks, automakers continue to turn out cars that highlight the latest technologies in the areas of safety, engine efficiency and performance, and alternative fuels. The U.S. “Big Three” — Ford, General Motors, and DaimlerChrysler — along with Toyota, Honda, and other Japanese automakers, are introducing more models with hybrid or alternative-fuel engines, and safety features that enable parents to track their teenage drivers and cars to talk to each other.

Posted in: Articles

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Julia W. Loftis, Associate Chief for Information Systems Technology

NASA Goddard Space Flight Center, Greenbelt, MD Julia W. LoftisWhile a single, peer-to-peer rover can cover a large territory and gather a wealth of information, an entire fleet of rovers could cover even more ground. However, controlling multiple platforms poses a much different set of criteria. To answer the need to control and communicate with multiple vehicles doing a similar task, the Adaptive Sensor Fleet (ASF) software was developed by NASA researchers, and is able to coordinate several platforms at once. Julia Loftis oversaw the strategic planning of the project.

Posted in: Who's Who

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Maple Mathematical Software

Maplesoft™, Waterloo, ON, Canada, has introduced Maple™ 11 mathematical software with a smart document environment that automatically captures technical knowledge in an electronic form that seamlessly integrates calculations, explanatory text and math, graphics, images, and sound. These live documents can be reused or shared across an organization. The smart document environment also includes the ability to use natural math notation in titles, legends, and labels, and annotation capabilities such as sketching, adding text and math, and drawing lines, shapes, and arrows.

Posted in: Products

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Thulium Puts Power Behind Eyesafe Fiber Lasers

One of the key advantages of fiber laser technology stems from the high conversion efficiency of the multimode pump radiation into high-brightness, single-mode laser light within the doped fiber lasing medium. Ytterbium-doped fiber lasers operating around 1μm often achieve around 80% pump- to-laser conversion efficiency and corresponding wall plug efficiencies over 25%, depending on the pump diodes used in the laser. As a result, high-power CW fiber lasers are more compact and require less cooling than a traditional solid-state laser of similar power.

Posted in: Articles, Features, ptb catchall, Photonics

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Reactive Solders Improve Fiber Couplers and OE Bonding

Optical and optoelectronic (OE) devices are being rapidly integrated into many facets of everyday life. From telecommunications to sensor applications, these devices are expected to perform accurately and reliably for long periods of time.

Posted in: Application Briefs, Applications, ptb catchall, Photonics

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Product of the Month: HPL Diodes, Bars, and Stacks

Intense, Ltd. (Glasgow, UK) released Hermes™, a family of High Power Laser (HPL) products. Included are single emitters, bars, conductively and micro-channel cooled bars, and stacks. The single emitters have wavelengths of 808 nm (up to 5 W), 940 nm (up to 7 W), and 980 nm (up to 7 W). The bars are at 808 nm and 940 nm (both up to 100 W), while the conductively cooled bars are 808 nm (up to 60 W) and the micro-channel cooled bars are 808 nm (up to 100 W). The stack is 808 nm (up to 805 W). The devices operate in both continuous-wave and quasi-continuous-wave modes. The line is designed for use in industrial, medical, defense, and aerospace applications.

Posted in: Products, Products

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Dichroic Filter

Patterned dichroic filters from Deposition Sciences, Inc. (Santa Rosa, CA) operate over a wide range of wavelengths, from near ultraviolet to infrared. Able to be applied in a variety of substrates in multiple shapes and sizes, the filters maintain stability in extreme temperatures and conditions. Additionally, they may be applied to wafer substrates up to 100 mm in diameter in materials such as glass, silicon, sapphire, and fused silica. Coatings are applied on a single substrate with dimensions down to 100 microns, an accuracy of ±1 micron, and feature placement accuracy of ±5 microns. Applications include optoelectronic and opto-mechanical devices, satellites, and aircraft.

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