Laser Focus World April 2010 Edition

Laser MagzLaser Focus World April 2010 Issues has been released. Here are feature articles form Laser Focus World April 2010 Edition.

PHOTONIC FRONTIERS: MILITARY LASERS: A new generation of laser weapons is born
Diode-pumped solid-state is in for short-range defense; diode-pumped alkali vapor lasers are in the running for boost-phase missile defense.

INTEGRATED OPTICS: PLCs move into advanced optical instrumentation
Progress in PLC design, processing, and hybridization allows for active elements such as lasers, detectors, phase shifters, and other building blocks to be integrated directly on a PLC platform.

FIBER LASERS: Move over, solid-state lasers– Femtosecond fiber lasers are here
Inadequate pulsewidth has long been perceived as a barrier for high-power femtosecond fiber lasers to compete with solid-state lasers; fortunately, pulse and spectral shaping techniques are tearing that barrier down.

FIBEROPTIC TEST & MEASUREMENT: Wavelength-selective switches play critical role in agile optical networking
Fiberoptic test engineers across the supply chain are on the front lines to ensure that testing of reconfigurable optical add/drop multiplexer (ROADM) and wavelength-selective switch (WSS) components is appropriate to safeguard a properly functioning agile optical network (AON) for the next generation.

SPECTROSCOPY: External-cavity QCLs broaden capabilities for molecular detection
External-cavity, mid-infrared quantum-cascade lasers (QCLs) enable molecular “fingerprint” analysis with high sensitivity and selectivity for spectroscopy applications including explosives detection, breath alcohol detection, glucose monitoring, and greenhouse gas analysis.

LOW-LIGHT IMAGING: Novel back-illuminated CCD enhances low-light-level detection
Conventional CCDs come in several forms, each with certain disadvantages for low-light imaging; a new take on back-illuminated technology resolves these issues while maintaining the benefits.

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