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Photonics Spectra - July 1998
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Issue Library
Features
Laser Alignment Improves Appearance, Safety, Efficiency
Long operating life, fuel efficiency, passenger safety and customer satisfaction - all important considerations in the transportation industry - rely heavily on precision alignment of body parts and operating components. In recent years, lasers and laser sensors have become integral parts of robot guidance systems that facilitate and optimize production, particularly for automotive and aircraft...
Target Acquisition:
The criteria that the military uses to develop its targeting and surveillance imagers may be useful to those who are developing other types of imaging systems, such as microscopes, machine vision...
Software Integration Enables Fast, Precise Telescope Design
Astrophysicists have studied gamma ray bursts for more than 25 years, but they are no closer to understanding them or determining their sources. These unpredictable bursts of gamma-ray photons come...
Reliable, Compact Ultrafast Lasers Escape the Lab
While several thousand femtosecond lasers can be found in research and development laboratories around the world, and hundreds of potential applications have been proposed, no ultrafast sources were...
High-Speed Cameras Improve Vehicle Performance and Safety
Ballistics and mining engineers have long used high-speed imaging to study how small changes affect the way explosives detonate. Industrial engineers use the cameras to slow down high-speed machines...
Tech Pulse
Fiber Optic Sensor Monitors Wear on Canadian Bridge
Engineers from the University of Toronto's Institute for Aerospace Studies and department of civil engineering, along with technicians from Ontario, Canada's Ministry of Transportation, have...
People Finder Flounders Under Testing
Finding the survivors among the wreckage of a bombing or plane crash is difficult at best, so when the US government learned about a new device from DielectroKinetic Laboratories LLC of Washington,...
Lucent Makes Gains in Network Technologies
Lucent Technologies has unveiled two types of optical fiber: one that promises increased bandwidth for local networks and another that features low dispersion for long-distance systems. For...
Giant Telescope to Map Vast Expanse of Sky
Astronomers have been able -- even with the greatest of telescopes -- to see only a small portion of the sky at a time. Professor Jim Gunn, a Princeton University astronomer, hopes to overcome this...
Lasers Create Nanoscale Islands
The creation of nanodots, or small islands of a few atoms, offers significant interest to semiconductor laser manufacturers. Compared with quantum well designs, the smaller structures provide...
Physicists Propose Novel Method to Catch Neutrinos
For years, scientists have sought the elusive, weightless particles known as neutrinos. Neutrinos, which behave somewhat like photons (they can travel without changing direction through matter), are...
Fluorescence Finds Photomask Defects
Using a fluorescent dye and an argon-ion laser, researchers at the University of Delaware can detect nanometer-size scratches in the polished surface of a photomask much more quickly than with atomic...
Plastic Fiber Technique Improves Cost
A Florida company has developed and patented a method for the continuous production of graded-index plastic optical fiber. James K. Walker, CEO of Nanoptics Inc. in Gainesville, Fla., presented an...
LEDs Put Railroad Lighting on More Efficient Track
Using light-emitting diodes (LEDs) to replace colored tungsten filament bulbs for their signals could help railway companies cut costs and reduce risks for maintenance crews. LED signals developed...
NASA Scientists Report Insights into Rainfall
Thanks to recently released images taken from a NASA/ Japan Space Agency spacecraft's lightning image sensor, scientists are gaining new insights into rainfall-producing cloud systems over the...
Devices Detect Explosive Residue
To evolve low-cost, portable land mine detection technology, researchers at Duke University have developed microelectromechanical devices that could become a two-part detection system for explosives....
Researchers Shrink Confocal Laser Microscope
Scanning confocal laser microscopes are bulky and stay in one place. But a start-up company aims to find its success by miniaturizing these devices while still providing three-dimensional optical...
Solitons Work in Real Network
The increasing demand for bandwidth in optical links has found an answer in nonlinear propagation, which recently was put into play by Pirelli Cables and Systems and MCI Telecommunications Corp. This...
Researchers Make Gains in Understanding Human Thought
Researchers at Stanford University have taken an important step in understanding the chemistry behind the way cells in the brain communicate with one another. Chemists used a laser to trap...
TRW's UV Laser to Advance Photolithography
TRW's Space and Technology Div. in Redondo Beach, Calif., has taken another step closer in the development of a light source for lithography for the semiconductor industry. TRW selected SDL Inc. in...
Engineers Unveil Tabletop X-Ray Laser
Researchers at the University of Michigan's Center for Ultrafast Optical Sciences in Ann Arbor have built a tabletop laser that generates a coherent x-ray beam. The scientists shot a rapidly pulsing...
light speed
US Bank Note Will Feature Light-Interference Pigment
The US Treasury Dept. has chosen Flex Products Inc., a subsidiary of Optical Coating Laboratory Inc., to supply its patented light-interference pigment as an anticounterfeiting measure on the US $20 bank note. The Santa Rosa, Calif., company designed the pigment to shift colors from green to black when viewed at different angles -- a feature that is extremely difficult to replicate. The $100 and...
Drexler Challenges Microsoft
Drexler Technology Corp. based in Mountain View, Calif., has cautioned Microsoft Corp. of Redmond, Wash., that the software giant may be infringing on five of Drexler's US patents related to optical...
Corning Photonics to Add 200 Workers
One sign that the photonics industry's growth is not flagging: Corning Inc. has opened the door to hire more than 200 hourly workers at its Photonic Technologies Div. manufacturing facility in Erwin....
Optical Society Fills Director Position
The Optical Society of America has a new executive director. This month, John A. Thorner becomes the principal administrative officer, responsible for managing the society's programs and activities,...
Photonics Spectra Again Receives Editorial Honors
Last month Photonics Spectra was named a national award winner in the Signed Editorial category of the annual editorial excellence competition conducted by the American Society of Business Press...
NIST Reports Billions Spent on Measurement Capability
The National Institute of Science and Technology (NIST) has reported that the US semiconductor industry spent between $2.3 billion and $2.5 billion in 1996 to buy measurement tools and instruments to...
Optical Societies Consider Partnership
More than a decade after deciding against it, a joint task force is reconsidering closer collaboration between the Optical Society of America (OSA) and SPIE. Meeting on a monthly basis, the committee...
Photonics Shares in Environmental Advances
Applications of photonics technology in research and development over the past decade have helped to create many technologies that will improve water safety, reduce wasted paper and make...
New York High-Schoolers Study Photonics
A New York state high school is offering a two-year photonics training program designed to prepare adolescents for the work force. In one of the first programs of its kind at the high-school level,...
Shareholders Sue Premier Laser Systems
Investors in Premier Laser Systems Inc. have filed a class-action lawsuit charging the company with fraudulent business practices that artificially inflated the price of Premier's stock. The Irvine,...
Report: US Should Do More to Support Optics
The National Research Council's Committee on Optical Science and Engineering has published a report, Harnessing Light: Optical Science and Engineering for the 21st Century, pointing to optics as the...
Accent on Applications
Photonics Contributes to Lava Flow Study
Among the many attractions of the Hawaiian Islands, perhaps the most intriguing are its volcanoes. Tourists are drawn by their beauty and by the danger that lies within. But these mountains, formed by the accumulation of molten rock, can become a threat to lives and homes without warning. Lava flow temperatures averaging 1150 °C were detected using the FieldSpec FR at this erupting volcano....
IR Imager Helps Preserve the Alamo
The Alamo, a historical landmark in San Antonio, Texas, that many consider the birthplace of the state, is showing signs of aging. This comes as no surprise, since the walls were constructed...
Submarine Makers Test Their Own Optical Fiber
As part of a modernization of its Trident II submarine, General Dynamics Defense Systems is installing a faster network, phasing out its Ethernet system in favor of a fiber distributed data interface...
Presstime Bulletin
Tellabs Buys Ciena for $7.1 Billion
Tellabs Inc. has announced the acquisition of Ciena Corp. of Linthicum, Md., a manufacturer of dense wavelength division multiplexing (WDM) technology. Tellabs, of Lisle, Ill., manufactures digital cross-connect switches that help companies manage traffic on high-speed data networks. Ciena's dense WDM equipment boosts the capacity of fiber optic networks. The transaction involved a one-to-one...
European Observatory's Telescope Receives 'First Light'
On the night of May 25-26, Unit Telescope 1 of the European Southern Observatory's Very Large Telescope returned its first scientifically useful images. The "first light" images demonstrated...
Bell Atlantic Eyes Burgeoning East Coast Telecom Market
Bell Atlantic plans to begin construction of a data-packet-switched, long-distance network for the East Coast in July. As part of the planned network, the phone company has signed a $200 million...
Novel High-Power Microlasers Use 'Bow Ties' of Laser Light
Scientists from Lucent Technologies' Bell Labs in Murray Hill, N.J., Yale University in New Haven, Conn., and the Max Planck Institute of Physics in Germany have demonstrated semiconductor...
Physicists Report Neutrinos Have Mass
In a discovery described as monumental, scientists report that neutrinos have a mass -- an observation that could alter current theories on dark matter and provide clues to the origin of the...
Products
CONNECTOR CLEANER
CleanTouch, from Krell Technologies Inc., is a tool designed to clean optical fibers and connectors. A connector is pressed against CleanTouch to remove contaminants and to provide a low-loss,...
KrellTech
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FIBER OPTIC MODULE
A new fiber optic module from Optometrics USA Inc. produces monochromatic light from a fiber optic bundle. The company says this rugged, compact instrument makes operation as easy as turning on the...
Optometrics Corp.
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REMOTE MONITORING
Anritsu Co. has added a function for its MW9070B mini-optical time domain reflectometer (OTDR) for remote monitoring of fiber optic lines. The system can monitor and detect faults in lines...
Anritsu Co.
Request info >
FO STABLE SOURCE
Oz Optics Ltd. is offering fiber optic stable sources with laser diodes or LEDs in a range of wavelengths. The Foss-01 and Foss-02 models come with a fixed fiber output power, typically ?1 mW....
OZ Optics Limited
Request info >
LINE-SCAN CAMERAS
A line of high-performance digital line-scan cameras, designated the L120, L130, L140 and L160, are available from Basler Vision Technologies. With pixel rates varying from 20 to 62.5 MHz, these CCD...
Basler AG
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IMAGING SOFTWARE
Matrox Imaging has announced its Matrox Inspector version 2.2, with optimizations for Intel MMX technology and support for Matrox PCI frame grabbers. Matrox Inspector is an interactive Windows 95/NT...
Matrox Imaging
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PIEZO ADJUSTER ALIGNMENT
Elliot Scientific Ltd. has released the Dali E-2100 device alignment instrument. The unit includes a three-channel piezo driver for 0 to 150-V piezos, menu-driven alignment functions and an IEEE...
Elliot Scientific Ltd.
Request info >
SAPPHIRE FIBERS
Optical-grade laser-heated pedestal-grown sapphire fibers with tapered profiles are available from MicroMaterials Inc. The thin-diameter sapphire fibers are flexible and can be used in high-power...
MicroMaterials Inc.
Request info >
60-W DIODE LASER UNIT
Opto Power Corp. offers a 60-W, constant-current, diode laser unit for direct thermal applications. The H01-D060-FCMS provides near-infrared continuous-wave diode laser power through a...
Opto GmbH
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LASER DIODE BARS
Coherent's Semiconductor Group has announced its 40-W laser diode bars based on its proprietary aluminum-free active area material. Available in a wavelength range from 800 to 820 nm, the bars are...
Coherent Inc.
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DIODE LASERS
Micro Laser Systems has enhanced its certified Class IIIb MS Series diode lasers, which are available in smaller packages from 635 nm to 1.5 µm up to 30 mW. Their nearly circular beam is 2 mm...
Micro Laser Systems Inc.
Request info >
DIODE-PUMPED Nd:YAG
Lee Laser has introduced the Series LDP diode-pumped and Q-switched Nd:YAG lasers. The four multimode models exhibit high beam quality and pulse stability at 100 W of output power. They have a highly...
Lee Laser Inc. (See Coherent Inc.)
BLUE LED
The LS-450 blue LED from Ocean Optics Inc. is designed for high-sensitivity emission fluorescence measurements. The device produces a pulsed spectral output at 450 nm and has an SMA connector for...
Ocean Optics - Part of Ocean Insight
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OEM LENSES
Newport Corp.'s line of ValuMax lenses includes 47 new designs of planoconvex and achromatic doublet lenses. They are available in both inch and metric sizes with diameters from 6 to 25.4 mm and...
MKS/Newport
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PMT LENS
Hamamatsu Corp. has introduced a hemispherical acrylic lens designed to increase anode sensitivity and relative output in the company's 11/8-in. photomultiplier tubes. Attaching the lens to the...
Hamamatsu Corporation
Request info >
NEAR-IR ANALYZER
Analytical Spectral Devices Inc. has released the FieldSpec Chem, a portable near-infrared analyzer designed for quality assurance and control applications in a laboratory or production setting....
ASD Inc.
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DOE Unveils Quantum Lab; MICLEDI Completes Series A: Week in Brief: 3/15/24
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Novel Frequency Comb Could Enable Smartphone Spectroscopy
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Japan's Institute for Molecular Science Accelerates Quantum Computing Efforts
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Longview Fusion Energy Advance Toward Fusion Power Plant
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Latest Products
CO2 Optics
Laser Research Optics
Microspectrometers
CRAIC Technologies
Corrosion and Weld Scanners
Evident
ToF Distance Sensors
Leuze electronic GmbH & Co. KG
Chip-on-Board Lights
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Rugged HDR Camera
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