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Infrared Detectors Image the Future Infrared Detectors Image the Future
The ability to see beyond the capabilities of normal human vision is vital in areas such as emergency services, defense, science, maintenance and surveillance, and all of these areas stand to gain by the latest advances in infrared imaging technology.Objects at room temperature glow brightest in the wavelength range from 8 to 10 µm, so cameras that can see within that range are targeted for applications in security, surveillance, navigation and flight control, fire fighting and early-warning...
Photonics Spectra, April 2003
Minimizing Error and Maximizing Precision in Microassembly Minimizing Error and Maximizing Precision in Microassembly
Precision assembly solutions are as unique as the products they are built to automate, especially in the photonics world. Progressive assembly operations such as guiding, gluing and bonding sometimes take place in a local region around a static...
Photonics Spectra, April 2003
Picking Up the Pace of Rapid Manufacturing Picking Up the Pace of Rapid Manufacturing
By one estimate, rapid prototyping equipment generates more than 3 million models and prototypes annually. Even with the recent slowdown in the market, this figure will most likely continue to rise. Development work by equipment manufacturers and...
Photonics Spectra, April 2003
Quartz Crystal Thin-Film Monitoring Forges Ahead Quartz Crystal Thin-Film Monitoring Forges Ahead
Research in fields such as nanotechnology, biosensors, thin-film displays and high-speed optical communications has increased the complexity of thin-film structures. Although an antireflection coating consisting of a single layer of magnesium...
Photonics Spectra, April 2003
Scrambling to Reduce Polarization-Related Impairments Scrambling to Reduce Polarization-Related Impairments
Polarization is a fundamental property of light. In classical physics, light is modeled as a sinusoidal electromagnetic wave in which an oscillating electric field and an oscillating magnetic field propagate through space. Polarization is defined in...
Photonics Spectra, April 2003
Fiber Bragg Gratings Filter WDM Signals Fiber Bragg Gratings Filter WDM Signals
Fiber Bragg gratings are versatile wavelength filters for multiplexing and demultiplexing wavelength division multiplexing (WDM) signals. They also can compensate for chromatic dispersion that can degrade the quality of the WDM signal in an optical...
Photonics Spectra, March 2003
Making Machines See Making Machines See
Today, machine vision is associated with industrial automation, where vision systems help with the manufacture and inspection of products. Innovations are making machine vision solutions smaller, more powerful, easier to use and less expensive....
Photonics Spectra, March 2003
Modular Diode Lasers Stack Up as Quality Beam Tools Modular Diode Lasers Stack Up as Quality Beam Tools
Diode lasers with total power ranging from several hundred watts to more than a kilowatt began to play an important role in materials processing applications in the mid-1990s. The German government recognized that diode lasers could revolutionize...
Photonics Spectra, March 2003
Multiwavelength Lasers Simplify WDM Networks and Applications Multiwavelength Lasers Simplify WDM Networks and Applications
Mode-locked lasers are common tools for producing short pulses in the time domain, including telecommunications applications at multigigahertz repetition frequencies that require tunability in the C-band. Now they also can work as multiwavelength...
Photonics Spectra, March 2003
Photonic Component Manufacturers Move Toward Automation Photonic Component Manufacturers Move Toward Automation
Laser diodes are everywhere. But as the semiconductor laser has evolved to yield a family of robust, reliable devices, manufacturing these devices confronts the existence of multiple proprietary techniques as well as intellectual property...
Photonics Spectra, March 2003
Simulation Tools Assess Laser Communications System Performance Simulation Tools Assess Laser Communications System Performance
Bidirectional laser communications among ground and air- and spaceborne platforms holds promise of extremely high bandwidth data transfer in commercial and military applications. One challenge still to be met is optical-beam degradation from...
Photonics Spectra, March 2003
Tracking Nanoposition Advances Tracking Nanoposition Advances
What works in the microworld very often doesn’t work in nanopositioning applications such as nano-imprinting, scanning microscopy, microlithography and automated alignment. End users will often need to rethink positioning strategies, including...
Photonics Spectra, March 2003
Adhesives for Fiber Optics Assembly: Making the Right Choice Adhesives for Fiber Optics Assembly: Making the Right Choice
Fast becoming pivotal to the assembly of fiber optic components, adhesives perform well on glass, metal, ceramic and most plastic substrates, provide excellent chemical and solvent resistance, act as an electrical insulator, and may be used in...
Photonics Spectra, February 2003
CCD Imaging: When Every Pixel Counts CCD Imaging: When Every Pixel Counts
With CCDs, production of a quality image remains their selling point, whether the sensors are used with a microscope, the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope or your cell phone. In all cases, though, time is also of the...
Photonics Spectra, February 2003
Ethernet’s Impact on Optical Component Testing Ethernet’s Impact on Optical Component Testing
The optical networking industry is redirecting its focus. Unlike the new-product development feeding frenzy of the 1990s, carriers and service providers now want to leverage their infrastructures and concentrate on cost-effective ways to deliver...
Photonics Spectra, February 2003
Ethernet's Impact on Optical Component Testing
The optical networking industry is redirecting its focus. Unlike the new-product development feeding frenzy of the 1990s, carriers and service providers now want to leverage their infrastructures and concentrate on cost-effective ways to deliver...
Photonics Spectra, February 2003
Functional Coatings Broaden Laser Applications Functional Coatings Broaden Laser Applications
Coated surfaces have played an important role in commercial laser technology for about 30 years. However, it was not until recently that development and production of functional optics faced changes, including increases in reflection and...
Photonics Spectra, February 2003
Photonics Jobs: What to Expect in 2003 Photonics Jobs: What to Expect in 2003
How quickly times change. A few years ago, market analysts were intoxicated with the flush of new wealth and declared the new economy unbounded by traditional rules of the market. These wizards of Wall Street informed us that we would have to adapt...
Photonics Spectra, February 2003
Piezoelectric Motors Control Set-and-Hold Semiconductor Applications Piezoelectric Motors Control Set-and-Hold Semiconductor Applications
Motion control applications in the semiconductor manufacturing industry range from mask and wafer alignment to laser beam steering and active pointing stabilization. Because these applications are "set and hold," with position first optimized and...
Photonics Spectra, February 2003
Seeking a Silicon Laser Seeking a Silicon Laser
Silicon microphotonics has boomed in the last few years. Many silicon-based devices have been demonstrated: waveguides, tunable optical filters, fast switches, fast optical modulators, fast CMOS photodetectors, photonic crystals and...
Photonics Spectra, February 2003
3M Co.-Film and Light Management 3M Co.-Film and Light Management
Thin, high-performance UV-reflective filters from 3M are constructed from engineering-grade polymers and do not require a substrate. Based on the St. Paul, Minn., company's Multilayer Optical Film technology, the flexible filters are 20 to 50 µm...
Photonics Spectra, January 2003
3M Co.-Optical Components Program 3M Co.-Optical Components Program
The Pulse Compressor from 3M Co. of Austin, Texas, manages the chromatic dispersion that can limit transmission speeds in optical communications systems. Earlier solutions required the use of bulky modules with dispersion-compensating fiber, which...
Photonics Spectra, January 2003
Alcatel Optronics Alcatel Optronics
The 1910 TWV eight-channel, wavelength-independent multiplexer from Alcatel Optronics, headquartered at Nozay, France, demonstrates the concept of integrated planar lightwave hybridization. It is designed to overcome the telecommunications challenge...
Photonics Spectra, January 2003
Applications Surge for High-Power LEDs Applications Surge for High-Power LEDs
Until recently, LEDs were best-known as the ubiquitous indicator lights on computers, printers and other electronic equipment. Their small footprint, energy efficiency and long life have posed intriguing possibilities for other applications for many...
Photonics Spectra, January 2003
Calient Networks Calient Networks
The DiamondWave all-optical photonic switch offers 256 x 256 transparent switch capacity and GMPLS networking capability in a single package that is half the size of an industry-standard rack. Calient Networks of San Jose, Calif., designed the...
Photonics Spectra, January 2003
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