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Assessing Damage for UV-Laser-Resistant Fused Silica Assessing Damage for UV-Laser-Resistant Fused Silica
The heart of any optical lithography tool is its illumination and projection system. The illumination system preconditions the laser beam and provides the optical path from the laser to the photomask, and the projection lens images the pattern from the photomask onto the wafers. The majority of required optical elements are made of high-purity fused silica, and the remaining ones are made of CaF2 to correct chromatic aberrations. Because lithography tools are generally expected to have a...
Photonics Spectra, April 2002
Lasers Lighten the Laboratory Load Lasers Lighten the Laboratory Load
Laser manufacturers take note: A nonscientific survey indicates that scientists want a highly tunable turnkey laser with configurable pulse widths and repetition rates. It should be easily mode-locked, have good shot-to-shot and long-term stability,...
Photonics Spectra, April 2002
Machine Vision Machine Vision
Thanks to LEDs and off-the-shelf CCD camera technology, robots can now insert automotive windshields on the fly as a car moves along the production line. The first such application in the world is Ford Fiesta and Mazda 121 assembly lines at a Ford...
Photonics Spectra, April 2002
Optical Fiber Optical Fiber
At the beginning of 2001, manufacturers of optical fiber couldn’t make the stuff fast enough. By midyear, the economic boom’s bubble had burst, and the world’s leading suppliers began applying the brakes to their global fiber...
Photonics Spectra, April 2002
Optical Power Meters Optical Power Meters
Despite the downturn in the telecommunications industry, traffic volume continues to grow. Network providers will need additional capacity, and equipment designers must continue to push system limits toward higher bit rates and denser channel...
Photonics Spectra, April 2002
Polyphenyl Ethers Polyphenyl Ethers
These short-chain cyclic compounds are linked by oxygen atoms. A characteristic formulation has two to eight aromatic groups, or rings, allowing PPEs to retain their chemical and performance stability against ionizing radiation, thermal excursions,...
Photonics Spectra, April 2002
The Incredible Shrinking IR Camera The Incredible Shrinking IR Camera
Many interesting and important IR imaging applications remain limited by the practical and economic barriers of camera technology; namely, camera size, weight and power consumption. A typical example is in fire fighting, where ideally every...
Photonics Spectra, April 2002
Automated Pigtail Fabrication Needed for Future Networks Automated Pigtail Fabrication Needed for Future Networks
The need to automate the manufacture of fiber optic components is clear. Automation must be embraced if the industry is to fuel the expansion and urban deployment of next-generation networks. The question is how best to implement automation in the...
Photonics Spectra, March 2002
Automating Optoelectronics Manufacturing Automating Optoelectronics Manufacturing
The financial situation confronting the optical networking industry is placing new demands on the companies that supply it with advanced optoelectronic components. Because of the recent slowdown in spending, carriers are looking for ways to maximize...
Photonics Spectra, March 2002
Choosing a Scientific CCD Detector for Spectroscopy Choosing a Scientific CCD Detector for Spectroscopy
Since the invention of the charge-coupled device by Willard Boyle and George Smith at Bell Labs in 1970, there has been an explosion in its use in scientific, medical and industrial imaging, and in spectroscopy applications.CCDs represented a...
Photonics Spectra, March 2002
Cutting Manufacturing Costs Cutting Manufacturing Costs
With increasing market pressure to make significant reductions in the cost of manufacturing photonic components, engineers are turning more and more to new design approaches, higher levels of device integration and the extensive use of automation...
Photonics Spectra, March 2002
Excimers Smooth the Path to Well-Lubricated Bearings Excimers Smooth the Path to Well-Lubricated Bearings
Applications in the defense and aerospace industries have increased demands for spherical plain bearings that require less maintenance and that yield higher performance and longer life. These demands, in turn, have initiated the development of laser...
Photonics Spectra, March 2002
Specifying Injection-Molded Plastic Optics Specifying Injection-Molded Plastic Optics
The use of plastic optics continues to grow in popularity as optical design engineers discover the many ways these components can manage light. Plastic optical elements and systems appear in a wide spectrum of industrial and medical applications,...
Photonics Spectra, March 2002
Beam Profiling Aids Fiber Optics Manufacturing Beam Profiling Aids Fiber Optics Manufacturing
In the fiber optics industry, one constantly hears that new markets will remain elusive unless production efficiency is improved. It is a common goal, therefore, to develop better processes. We propose beam profiling as a scalable improvement for...
Photonics Spectra, February 2002
Broadband Gain Chips Broadband Gain Chips
Telecommunications requirements such as dynamic provisioning, channel protection, wavelength conversion and the replacement of fixed-wavelength distributed feedback lasers are driving the adoption of tunable laser sources. External-cavity lasers...
Photonics Spectra, February 2002
Cameras Are Focusing on All Microscopy Applications Cameras Are Focusing on All Microscopy Applications
There is more going on in microscope cameras than meets the eye. Digital interfaces, as much as the demands of the applications, promise to deliver higher camera resolution and user-friendly operation. New CCD sensors under development should yield...
Photonics Spectra, February 2002
Photodiodes Photodiodes
A decade after the Gulf War, the US is again involved in a military campaign, with "smart" weapons playing a key role. In fact, the political success of this effort has depended in part on the ability to keep collateral damage to an absolute minimum...
Photonics Spectra, February 2002
Planar Optical Integration Planar Optical Integration
Since the beginning of the most recent boom in the optical fiber industry, component vendors have introduced many technologies, among them planar optical integration, in which optical circuits are constructed out of waveguides fabricated on silicon...
Photonics Spectra, February 2002
Staff Report: A Leaner, Meaner Job Market for Photonics Engineers
At the close of 2001, the photonics job market found itself 180 degrees from where it had been at the end of 2000. Employers hold all the cards in this new environment, and those sign-on bonuses and stock options that were once commonplace are now...
Photonics Spectra, February 2002
Active Alignment Is Here to Stay Active Alignment Is Here to Stay
Active alignment is a ubiquitous process in fiber optic component assembly that sets the photonics industry apart from the semiconductor and electronics industries with which it is most often compared. For any company accustomed to applying the...
Photonics Spectra, January 2002
Applications Will Bolster the Industrial Laser Market Applications Will Bolster the Industrial Laser Market
According to analysts, the worldwide market for the laser sources and systems used in industrial materials processing has shown, on average, double-digit annual growth over the past five years. This trend should continue over the next few years,...
Photonics Spectra, January 2002
Automated Metrology and Inspection Automated Metrology and Inspection
The 2001 downturn in telecommunications has significantly affected component manufacturers and carriers alike. One result has been a substantial decrease in capital equipment spending as companies position themselves for a period of slow...
Photonics Spectra, January 2002
CCD vs. CMOS CCD vs. CMOS
One of the most significant imaging technology events will occur in 2002 because of business circumstances: consolidation of the CMOS imaging marketplace. The past five years has been a period of great enthusiasm for the potential of CMOS imagers,...
Photonics Spectra, January 2002
Deposition Systems: Meeting the Demands Deposition Systems: Meeting the Demands
The key to growing the market for vacuum deposition equipment is in meeting the demands that drive it: higher throughput, enhanced automation and more precise control of layer thickness.The focus of these demands includes dense wavelength division...
Photonics Spectra, January 2002
Diversity Powers Laser Market Diversity Powers Laser Market
In the past few years, telecommunications has received enormous attention in the laser industry and in the photonics press. While telecom applications continue to offer tremendous long-term potential for laser manufacturers, market diversity remains...
Photonics Spectra, January 2002
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