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View Laser Focus World Magazine, February 2008

Full & free, published by Texterity.

COVER STORY
Dynamic interferometry meets the fabrication and specifi cation challenges of meter-scale telescope optical elements, such as this mirror at the Large Binocular Telescope Observatory. (Photo courtesy of John Hill/Large Binocular Telescope Observatory

COMING IN MARCH
POWER-BEAMING APPLICATIONS
Recent improvements in the effi ciency of diode lasers and the growing market for photovoltaics have accelerated interest in power beaming (wireless power transfer). George Treusch and Tobias Koenning of Dilas Diode Laser (Tucson, AZ) and Ben Shelef, cofounder and leader of The Spaceward Foundation (Mountain View, CA), discuss the diode-laser performance needed to tackle the 1 km challenge and describe a new power beamer that can be used in the space-elevator challenge and other power-beaming applications.

Download Laser Focus World Magazine, February 2008

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Features
INTERFEROMETRY: Dynamic interferometry ensures quality of large telescope optics
In recent years the demand for meter-scale optical elements has increased significantly, driven by growth in terrestrial and satellite-based astronomy, and defense and security applications.

LASER MARKETPLACE 2008: Diode lasers track long-term trend
As noted in last month’s Laser Focus World article “Laser Marketplace 2008, Part I”, the laser market is strongly influenced by global economic trends.

OPTOELECTRONIC APPLICATIONS: IN VIVO IMAGING: Microendoscopy takes a practical turn
Discussions about how to motivate the medical community to embrace new technologies often focus on form and function-user-friendliness, compactness, ergonomics, speed, cost, and so on.

MICRO-OPTICS: Laser writing advances micro-optics fabrication
Micro-optical manufacturing techniques have enjoyed remarkable progress in the last few years, transitioning from unique custom components for highly specialized applications to large-scale mass production for consumer products.

PHOTONIC FRONTIERS: DATA TRANSMISSION: What is the speed limit for single optical channels?
A pair of breakthroughs brought high capacity to today’s fiber-optic systems-single-mode transmission at 1300 nm in the 1980s, and the combination of erbium-doped fiber amplifiers and dense wavelength-division multiplexing (DWDM) in the 1550 nm band in the 1990s.

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