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Photonics Spectra - June 2001
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Issue Library
Features
CLEO Show Highlights
True to its name, the 2001 Conference on Lasers and Electro-Optics in Baltimore showcased the latest in laser technology. Most of the new technology on the conference's exhibit floor emphasized...
Technology Close-Up
Color is a visual cue that we often use to make judgments about our surroundings: Is an apple ripe? A steak fresh? Does this jacket match those pants? For this reason, manufacturers go to a lot of...
The Automation Crisis
Physics is all that stands between Intel and photonics. Intel knows volume manufacturing, it knows how to integrate many functions on one chip, and it knows that communications is a significant...
Design & Solutions
Modern communications system providers are striving to increase the capacity of their networks to satisfy the rapidly growing exchange of information around the world. Raising the data rate of a...
Photonics News Flash
The flashes lasted too long to be gunfire. And the videotapes that the public saw on the evening news were copies that had been altered by an unidentified technician in some TV studio who probably...
Keep It Together
Photonic components such as multiplexers, carrier and pump lasers, and attenuators are designed to fit within a network and survive up to 20 years. Companies incur heavy costs when they replace...
Monitoring the Process
To meet the goal of an efficient laser-driven manufacturing process, the laser must deliver the correct amount of energy, correctly distributed over the target area. Users demand both predictable and...
Photonics Pointers
You are designing a product that incorporates a high-power laser diode. Do you need a custom design? What are the costs and technical issues involved in customizing diodes? Where do you start?...
Tech Pulse
Multispectral Microscopy Accelerates
MILWAUKEE -- Multispectral microscopy provides information about the spatial variation in wavelength-dependent parameters of features on the scale of a few microns, but when elements of a sample...
Büchi Opens Spectroscopy Competition
Büchi Labortechnik AG of Flawil, Switzerland, is accepting applications for its award recognizing contributions to and applications of near-infrared spectroscopy. The application deadline for...
Bugs Lead the Way to Better Detectors
BONN, Germany -- Photonics regularly draws the inspiration for new technologies from the natural world, such as microbolometers and green fluorescent protein from rattlesnakes and jellyfish,...
Quantum Cascade Laser Operates at Room Temperature
Researchers from Thales Corporate Research in Orsay, France, have developed a GaAs-based quantum cascade laser that operates at room temperature. Since their development in 1995, quantum cascade...
CoO Infiltration Enhances YIG Films
A team at the National Physical Laboratory in New Delhi, India, has developed films of infiltrated yttrium iron garnet that promise applications as high-density magneto-optical recording media,...
Cosmos 1 Solar Sail Delayed
An accident during prelaunch testing has delayed the test flight of the Cosmos 1, which was developed by Babakin Space Center in Moscow for The Planetary Society of Pasadena, Calif. The solar sail...
Acousto-Optic Effect Studied
Gradients of acoustic pressure in nematic liquid crystal, known as acoustic streaming, are responsible for the acousto-optic effect, according to researchers from Chung Yuan Christian University in...
Lidar Finds Fish from the Air
BOULDER, Colo. -- Since antiquity, man has pondered the question: How many fish are lurking in the waters below? Getting an accurate picture of a fish population is still a challenge to the fishery...
Photochemical Etching Developed for GaN
A wet photochemical etching technique promises to ease the production of devices fabricated from GaN-based materials, which are resistant to most chemical etches and which can display defects when...
Gas Purifiers Improve Film Growth
Aeronex Inc. of San Diego has announced the completion of a one-year study with the University of California in Santa Barbara into the impact of gas purification systems on metallorganic chemical...
Night-Vision Goggles Spot Radiation
WARRINGTON, UK -- Tinkering with an old phenomenon in physics, designers are tackling a modern danger. They have retooled military night-vision goggles to see alpha radiation through scintillation,...
Lidar Takes the Sky’s Temperature
URBANA, Ill. -- For climatologists, a key question isn’t how high is the sky, but how hot is the sky. Understanding the temperature of various levels of the atmosphere is essential to...
Machine Vision Aids Lifeguards
BEVERLY, Mass. -- Despite their best efforts, lifeguards cannot monitor every swimmer in a loud, busy pool. According to the US Centers for Disease Control and Prevention, an average of six people...
Micro-Optics Enable Microsatellites
IRVINE, Calif. -- Microsatellites are gaining acceptance in the aerospace community as potential replacements for conventional satellites. These spacecraft can be as small as a Coca-Cola bottle, so...
Wrinkling Puts Light Mirrors in Doubt
Engineers may have to look elsewhere for lightweight mirrors for the next generation of space telescopes. A research team at the University of Arkansas in Fayetteville has determined that the polymer...
Handwashing Olympics Highlights Hygiene
WASHINGTON -- According to the US Centers for Disease Control and Prevention, dirty hands are responsible for 25 percent of food-borne illnesses, or 75 million annually, and for 5000 deaths in the US...
International Sematech to Upgrade Microstepper
International Sematech of Austin, Texas, a consortium of 13 semiconductor chip manufacturers, has announced plans to upgrade its 157-nm microstepper from Exitech Ltd. of Oxford, UK. The incorporation...
Laser Measures Shiny Objects in 3-D
OKAYAMA, Japan -- Laser rangefinders can be used to precisely determine the three-dimensional shapes of objects, but only if the objects display lambertian reflection. Now researchers at Okayama...
Vision System Identifies Sleepy Drivers
ACTON, Australia -- Car accidents happen in the blink of an eye, and the more that eyes blink or wander, the greater the chance for an accident. According to carmaker AB Volvo of Göteborg,...
Single-Molecule Study Exposes Glass Dynamics
AUSTIN, Texas -- Glasses and noncrystalline materials have been important to humans for thousands of years, but scientists have been at a loss to explain what is going on as these materials cool from...
Fluorescence Sampling Targets Oil Spills
DHAHRAN, Saudi Arabia -- Oil spills happen nearly every day throughout the world, but only a fraction are highly publicized. Lesser spills are far more frequent, most occurring when tankers discard...
Thermal Imager Passes Test
The Aero 20/2X thermal imaging system designed for law enforcement, aerial inspection, and search and rescue applications has successfully completed its initial flight test aboard an OH-58...
Tweezers May Power Micromachines
ST. ANDREWS, UK -- A team at St. Andrews University has demonstrated a variant of optical tweezers that can cause micron-size objects to rotate. The technique could be used to drive miniature cogs...
Two Fibers Enhance Monitoring
MILWAUKEE -- Fiber optic sensors containing probes that react to a triggering event such as a chemical spill can guard against widespread pollution from industrial plants. However, the fluorophores...
light speed
Opponents Blast Laser Fusion Facility Costs
LIVERMORE, Calif. -- The National Ignition Facility will cost more than $32 billion over its 30-year lifetime, more than six times the figure that the US Department of Energy estimated when Congress agreed to fund the facility, according to a recent report by an opposition group. Energy Department officials disputed the figure in a terse press release that said the report is "extremely...
Appeals Court Backs Laser Patent
The US Court of Appeals for the Federal Circuit has upheld a jury decision that General Scanning Inc. infringed one Electro Scientific Industries Inc. patent and that a second patent was invalid. The...
All-Optical Switches Face Challenges, Growth
Communications Industry Researchers in Charlottesville, Va., projects that US demand for optical switch components and subassemblies may bloom from today’s $152 million market to a $1.1 billion...
Hot Stocks? Not Necessarily
Companies that win kudos for their growth don’t necessarily continue to perform to such high expectations, according to a study by financial researchers. At three universities, researchers...
Intel Finds a Fit with Photonics
SANTA CLARA, Calif. -- Intel Corp. has extended its reach from electronics and semiconductors into photonics with three recently announced acquisitions. In April, Intel announced that it had agreed...
Metro Drives Add-Drop Market
ElectroniCast Corp. of San Mateo, Calif., predicts that the market for components for dense wavelength division multiplexing, including components for add-drop multiplexers, will reach $34.6 billion...
Firms Shopping for Growth
NEW YORK -- One in three fast-growth CEOs has acquired at least one company, and two in five say they expect to make acquisitions in the near future, according to a recent Trendsetter Barometer study...
Accent on Applications
Cool CCDs Make a Small Spectrometer
Component integration of CCDs has been a persistent problem with designing spectrometers. The InSpectrum spectroscopy system integrates a Hamamatsu CCD within the box, so the user does not have to deal with external components. Many devices need specialized interface cards in the spectrometer’s computer to operate the CCD. Newer, compact computers have little or no room for expansion cards....
Spectral Absorption Identifies Gem Origins
Jeweler Pierre Cartier was legendary for spinning yarns about the exotic origins of his collection, associating gems with palace intrigues and religious talismans in far-off lands. His invention of...
Stabilized Lasers Contribute to Geology
To the casual observer, most of the Earth appears to be quite stable. Only catastrophic events suggest a planet history of more subtle but persistent change. The long-base laser strain meter near the...
Presstime Bulletin
Agere Systems Announces Industry’s Lowest-Voltage, Highest Bandwidth 40-Gb/s Modulator for Optical Networks
ALLENTOWN, Pa. -- Agere Systems announced the industry’s lowest-voltage, highest-bandwidth lithium niobate modulator for use in 40-Gb/s optical networking systems. With this component, systems...
Agere Systems Announces Industry’s Most Powerful Distributed Feedback Raman Pump Lasers for 10- and 40-Gb/s Optical Networks
ALLENTOWN, Pa. -- Agere Systems, a provider of communications semiconductors, announced the industry’s most powerful 14xx nm distributed feedback (DFB) Raman pump lasers used to boost signal...
Agere Systems and RF Micro Devices Announce Strategic Alliance
ALLENTOWN, Pa. and GREENSBORO, N.C. -- Agere Systems and RF Micro Devices Inc. announced that they have signed definitive agreements to form a strategic alliance to develop, design and manufacture...
Lucent Technologies Microelectronics Spinoff Selects a Name
ALLENTOWN, Pa. -- Lucent Technologies announced that its Microelectronics spinoff has selected Agere Systems as its name. The company, which is the former Microelectronics Group of Lucent...
Armey Attacks Use of Photo Radar for Traffic Surveillance
In a May 8 letter to US Interior Secretary Gale Norton, House Majority Leader Dick Armey, R-Texas, challenged a plan to install photo radar systems on Washington-area parkways, characterizing the...
Crystal Design Tosses Out the Woodpile
Three-dimensional photonic crystals have shown tremendous promise in the development of all-optical devices for telecommunications and computing, but thus far their deployment has been hamstrung by...
Ions May Rub Out Velvet
The high-tech liquid crystal display (LCD) that has become ubiquitous in our laptops and desktop computer monitors relies on a decidedly low-tech manufacturing process: To align the liquid crystals,...
Leybold Optics Introduces a New Product Line of AR Lens Labs
The demand for coated ophthalmic lenses is growing fast, especially in the United States. Wholesale laboratories and retailers are taking AR coating in-house so that they can offer the whole value...
Lightchip Demonstrates Remote Wavelength Management at Supercomm
Lightchip demonstrated remote wavelength management in a high-channel count metro DWDM optical network environment during Supercomm 2001 in Atlanta, Georgia. Lightchip’s customers have asked...
Leading Cable Companies Benefit from Lightchip-ANTEC Partnership
Fulfilling the goal of their partnership, Lightchip announced that it’s intelligent optical transport subsystems are enabling ANTEC to create broadband networks that support next-generation...
Lightchip Adds 200 GHz and Flat Passband Capabilities to Versalight OWR
Responding to market demand, Lightchip, a provider of intelligent optical transport products, added 200 GHz spacing and flat passband capabilities to its Versalight optical wavelength router (OWR)....
View Engineering Wins in Court
The US Court of Appeals for the Federal Circuit has upheld a prior decision favoring View Engineering Inc. of Simi Valley, Calif., in a patent infringement suit. Robotic Vision Systems Inc. of...
Products
HIGH-RESOLUTION MINIATURE SPECTROMETER
The HR2000 miniature spectrometer from Ocean Optics Inc. can achieve optical resolution to 0.05 nm (FWHM). It plugs directly into the USB or serial port of palm-size, laptop and desktop PCs. The...
Ocean Optics - Part of Ocean Insight
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S-BAND TRANSMISSION
The eXpander is a turnkey subsystem designed to enable telecom equipment manufacturers to speed their time to market. It expands the usable bandwidth of fiber into the S-band by allowing fiber to...
Xtera Communications - USA
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BENCHTOP EDFA
The EFA-P22F has been added to MPB Communications Inc.'s line of benchtop gain-flattened erbium-doped fiber amplifiers. Suitable for DWDM applications, this model operates over the C-band and offers...
MPB Communications Inc.
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COARSE WDM MODULES
Finisar Corp. has unveiled a line of coarse wavelength division multiplexing (WDM) modules for metropolitan networks. Products include transceivers in eight wavelengths between 1470 and 1610 nm,...
II-VI Finisar
INTEGRATED AMPLIFIER
Vitesse Semiconductor Corp. has released a 3.125-Gb/s integrated transimpedance and limiting amplifier with a signal detection feature and photocurrent monitor. The VSC7969 does not require external...
Vitesse Semiconductor Corp.
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MINI FO POLARIZERS
Oz Optics Ltd. offers miniature fiber optic polarizers of less than 4 mm in diameter that transmit rays in only one polarization, blocking light in unwanted polarization states. They feature...
OZ Optics Limited
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InGaAs PHOTODIODES
Hamamatsu Corp. has produced InGaAs PIN photodiodes suitable for 1.3- to 1.55-µm optical fiber communications systems, including Fibre Channel, Gigabit Ethernet and SDH. The G8338 and G8339...
Hamamatsu Corporation
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FIBER FOR PIGTAILING
E*Core fiber from KVH Industries offers polarization-maintaining ability of >40 dBm and low sensitivity to stress and temperature. It is suitable for fiber splicing and for pigtailing to other...
KVH Industries Inc.
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PLASTIC OPTIC FIBERS
Moritex USA Inc. has introduced a line of multimode, step-index plastic optical fibers and assemblies. The fibers have a transparent PMMA core and a fluoropolymer clad fiber that deliver...
MORITEX North America Inc.
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DWDM PLATFORM
The 160-channel DWDM platform from Oplink Communications Inc. has a complete set of modules and components for building high-capacity subsystems for 1.6-Tb/s fiber optic telecommunications systems....
Molex, Optical Solutions
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FIBER PREPARATION
A fiber preparation system that manufactures fiber/ferrule assemblies for use as pigtails on optical devices has been unveiled by kSaria Corp. It comprises three docked modules that perform specific...
kSARIA Interconnect
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HIGH-SPEED, HIGH-RESOLUTION DIGITAL CAMERA
The 4M25 high-speed, multimegapixel digital camera from Dalsa is suitable for microscopy, laser-based imaging and crystallography. It provides 12-bit images with 2048 x 2048 spatial resolution at up...
Teledyne DALSA, Machine Vision OEM Components
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LABORATORY IMAGING
Syncroscopy has designed a camera that can perform high-resolution, color bright-field imaging, as well as ultralow-noise long-integration imaging for fluorescence. The syncroCool 435 has three 1360...
Synoptics Ltd.
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MACHINE VISION SENSOR
The In-Sight 1000 machine vision sensor from Cognex Corp. comprises its vision camera, a processor, a complete library of the company's software tools and networking technologies in a compact unit....
Cognex Corp.
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RECIRCULATING CHILLER
Lytron Inc. has added the RC030 to its Kodiak line of recirculating chillers. This model offers a cooling capacity of 3000 W, or 10.2k Btu/h, a compact footprint and temperature stability of ±0.1 °C....
Boyd Corp.
TEMPERATURE CONTROL
ILX Lightwave Corp. has developed a 3-A TEC temperature control module for its LDC-3916 and -3908 multichannel laser diode controllers. The LDC-3916558 has >8 V of compliance and is suitable for...
Newport - ILX Lightwave, Photonics
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TEMPERATURE CONTROLLER
Keithley Instruments Inc. designed its autotuning thermoelectrically cooled (TEC) SourceMeter for test and control of TECs used in telecom laser diode modules. The model 2510-AT controls laser diode...
Keithley Instruments Inc.
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THERMAL PROCESSING
The new LAC benchtop oven offered by Despatch Industries is designed for fiber optics manufacturers. The oven is available in temperatures up to 260 °C and provides temperature uniformity as well as...
ITW EAE - Despatch
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FAPTM System Family - 60W and 120W Peak Units
These full-feature, microprocessor-controlled diode laser systems from Coherent Inc. support a wide variety of applications including materials processing, medical therapeutics and solid-state laser...
Coherent Inc.
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CIRCULAR BEAM DIODE LASERS
The Lepton IV series of diode lasers from Micro Laser Systems provide a 1-mm-diameter beam with low divergence. Designed for research and high-performance instrumentation, they feature a circular...
Micro Laser Systems Inc.
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DUAL LASER SOURCE
Cercis Inc. has unveiled the model 520-8513M62 dual laser source for testing Fibre Channel and Gigabit Ethernet installations of multimode 62.5/125-µm fiber. The light source, containing an 850-nm...
Cercis Inc.
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EDFA PUMP LASER
The OPSL-980-500 from Coherent Inc. TeleCom Actives Group is a high-power, 980-nm, optically pumped VCSEL suitable for pumping erbium-doped fiber amplifiers in high-channel-count DWDM applications....
Coherent Inc.
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CO2 LASER SYSTEM
The PLG-15 from Preco Industries is a sealed CO2 laser system with speeds up to 40 in./s. It is designed for cutting, ablating, marking and drilling intricate shapes in polyester flex circuits,...
Preco Inc.
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LASER TRACKER TARGETS
Optical repeatability targets from SMX Corp. ensure accuracy and consistency of repeat measurements made with a laser tracker during machine tool and parts inspection. They have an open-air corner...
FARO Technologies Inc.
AUTOMATED LASER WELDING
An automated laser welding assembly platform for fiber optic components has been unveiled by Newport Corp. The AutoWeld series features integrated material-handling systems and unattended operation,...
MKS/Newport
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FLUORESCENT LIGHTING
A line of industrial-grade, high-frequency, sealed fluorescent linear lighting fixtures is available from StockerYale Inc. The fixtures are suitable for use in the inspection, machine vision, steel,...
ProPhotonix Ltd.
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COLOR ANALYSIS
The Grabner Auto Color full-range spectrometer from Petrolab Co. is designed for automatic color analysis of mineral oils, petrochemicals, pharmaceuticals and other liquids in the lab or field. It...
Petrolab Co.
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VIDEO MEASUREMENT
Optical Gaging Products Inc. has introduced a multisensor video measurement system with telecentric zoom optics for improved accuracy. The SmartScope Quest can characterize a part by integrating data...
OGP (Optical Gaging Products)
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