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Photonics Spectra - March 2001


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Features
Staff Report: Photonics Advance the Science of Art How do you safely remove years of coal soot and diesel exhaust from the Parthenon? Or strip discolored varnish off a painting by a Dutch master? Artworks must be cleaned periodically to allow...
The 2000 Photonics Awards Reception The 2000 Photonics Awards ceremony and reception, held Jan. 22 in the Regent Club at the Fairmont Hotel in San Jose, Calif., hosted nearly 200 executives and scientists. This annual event applauded...
Where’s the Beam? Research and commercial laser-based systems need to align the laser beam to an optical axis. In the laboratory, operational flexibility is key because setups are modified and reconfigured routinely....
The Infrared System The literature abounds with equations and data that pertain to infrared system design.1 Comparatively little has been written about the process of the design, however. Infrared system design is not a...
Intense Imaging The incorporation of image intensifiers into high-performance charge-coupled device (CCD) cameras has produced intensified imaging systems that provide high sensitivity in low-light conditions and...
All the Right Moves The insatiable market demand for photonic telecom components is putting a strain on manufacturers, who are looking for ways to maximize product yield and throughput. One typical production bottleneck...
Deck-Plate Science: A Day in the Life at Omega Three days a week, the staff at the University of Rochester’s Laboratory for Laser Energetics in Rochester, N.Y., punches in at 4 a.m. to prepare the Omega laser for its three test shots. At 8...
Photonics Switches: Fast, but Functional? The continuing success of wavelength division multiplexing (WDM) seems to have put to rest any concerns about the accessibility of bandwidth, even in the face of the Internet’s exponential...
Tech Pulse
Halos Indicate Cubic Airborne Ice Photographs of atmospheric halos over the Lascar volcano in northern Chile imply that water ice can grow in a cubic crystalline structure. Researchers from the Ursa Astronomical Association of Helsinki, Finland, and Helsinki University of Technology of Espoo, Finland, imaged the rings of light in November 1997. They suggest that temperatures taken at Antofagasta, a town west of the site, indicate...
Putting the Brakes on Light CAMBRIDGE, Mass. -- Two teams of researchers, working independently, have put the brakes on light, stopping it and holding it still, if for only a moment. One team, led by Lene Vestergaard Hau,...
Coherent Shows Prototype Laser Santa Clara, Calif.-based Coherent Photonics Group, Laser Div., introduced a prototype solid-state laser at Photonics West in San Jose, Calif., in January. The company hopes that the device, which is...
NTT Deploys Lucent C+L-Band System NTT Communications of Tokyo has installed a WaveStar OLS 400GL optical networking system from Lucent Technologies Inc. of Murray Hill, N.J. This is the first commercial deployment of the WaveStar...
LEDs Fool Quantum Mechanics While developing a test to measure the formation of singlet and triplet excitons in electrically conductive plastics, researchers at the University of Utah in Salt Lake City, the Indian Institute of...
Spectroscopy Probes Behavior of Granular Flows LOS ANGELES -- Foods, pharmaceutical powders and pills, minerals and ores, road and building materials. All are examples of granular materials that handling systems must smoothly transport without...
Digital Cinema Is on the Horizon Digital cinema is coming, but don’t expect it to revolutionize the moviemaking process, said Larry J. Hornbeck of Dallas-based Texas Instruments Inc. at Photonics West in San Jose, Calif., in...
Crystal Could Improve Optical Communications ALBUQUERQUE, N.M. -- Researchers at Sandia National Laboratories and the Massachusetts Institute of Technology in Cambridge have fabricated a two-dimensional photonic crystal that controls light in...
Lasers and Monolayers Pattern Surfaces MURRAY HILL, N.J. -- Semiconductors have long enjoyed the benefits of being small, but the same hasn’t been true for other devices. Many photonic gadgets being developed require the formation...
Integrated Active Thin-Film Cooling Demonstrated Temperature variations are the primary cause of wavelength drift in laser sources for optical communications, leading to crosstalk and other sources of error. Thermoelectric coolers are a common...
Machined Fibers Improve Midinfrared Spectrometry VIENNA, Austria -- Optical fibers have improved the versatility of near-infrared spectrometers, but instruments operating in the mid-IR have yet to see the development of efficient fibers or...
NASA Experiment Aims for Failure NASA has had its share of failures in the past few years, and with any luck that won’t change with its Space Radiation Electronics Testbed launched into orbit last November. The goal of the...
Photodynamic Therapy Studied A team at the University of Calgary in Alberta, Canada, has used two-photon excitation to improve the specificity of photodynamic therapy. The tight focus of two-photon excitation confines the energy...
Free-Electron Laser Plunges into the Ultraviolet Pursuing x-ray laser emission for applications across the sciences, an international research team has achieved 109-nm output from a test bed free-electron laser at Deutsches Elektronen Synchrotron...
Spray Lets Police Peek Through Envelopes BETHESDA, Md. -- According to the FBI’s Bomb Data Center in Washington, nearly 30 percent of bombing incidents are hoaxes. Because one can never be too careful, investigators could use a tool...
Thin Films Yield Pollution Sensor CORK, Ireland -- A team of English and Irish researchers has developed a sensor that uses light to sniff out waterborne pollutants. The device, which is manufactured using standard semiconductor...
Pump Produces 128-nm Excimer Emission Rare-gas excimer lasers based on Ar2 offer powerful extreme-ultraviolet sources for 128-nm lithography tools, but the electron-beam pumping scheme for these instruments is costly and impractical. An...
Fiber Damage Threshold Raised EDINBURGH, UK -- The flexibility of fiber optics promises to improve laser machining processes, but high-energy lasers damage the fiber and affect the beam quality. Now researchers from Heriot-Watt...
Mid-IR Laser Diode Raises Operating Temperature Spectrometrists probing the midinfrared with semiconductor lasers have had to be content with the higher noise and spectral width of pulsed operation or else use cryogenic cooling to achieve...
Short-Pulse Laser Tested for Machining Bloomfield, Conn.-based DeMaria ElectroOptics Systems Inc. has reported the development of a 150-ns CO2 laser system for the electronics packaging and materials processing markets. The company...
Silicon Advances as a Laser Material POVO, Italy -- One-quarter of the Earth is silicon. Microelectronic manufacturing techniques and the expanding capabilities of integrated circuits have made it even more ubiquitous. The demand for...
Richard Gaughan FAYETTEVILLE, Ark. -- As watchers of the telecommunications industry know, when it comes to bandwidth, too much is never enough. Wavelength division multiplexing (WDM) has been revolutionary,...
Radical Lens Theory Repeals Diffraction Limit LONDON -- Thinking positive doesn’t always produce the best results. For centuries, lens makers so relied on materials with a positive refractive index to fabricate optics that they never...
T-Ray Laser Displays Mode-Locking Researchers from Delft University of Technology in the Netherlands, and the University of California and Lawrence Berkeley National Laboratory in Berkeley, Calif., have reported mode-locked operation...
Polycrystalline Nd:YAG Laser Ups Efficiency The ubiquity of single-crystal Nd:YAG lasers belies the comparative difficulty in forming and doping the neodymium crystals. Their polycrystalline cousins offer a simpler and more cost-effective...
Ultraviolet VCSELs Are on the Way ALBUQUERQUE, N.M. -- Ultraviolet laser sources are especially valuable because of their ability to excite fluorescence in molecules that do not react strongly in other spectral regions, including...
Crystals Find Work as Beamsplitters Photonic crystals have been the focus of research as all-optical systems for communications and computing move toward reality. A group at Bilkent University in Ankara, Turkey, has taken the work...
Hairy Worm Wears Photonic Crystals SYDNEY, Australia -- Once upon a time, there was a mouse that wasn’t really a mouse, with fur that wasn’t really fur but photonic crystals. It may sound like a fairy tale, but researchers...
Fibers Yield Efficient Displays EDINBURGH, UK -- Today’s power-hungry laptops can run for only a few hours before they’ve eaten their way through a full battery. The main culprit is the display, which must be powered to...
light speed
Court to Hear Cognex Appeal RENO, Nev. -- Cognex Corp. expects a federal district court to rule this month on its request to throw out some of the machine vision and bar-code patents in its lawsuit against the Lemelson Medical, Education and Research Foundation. In addition, the US Court of Appeals for the Federal Circuit should hear an appeal this month or next on another aspect of the case. Greg Smith, a partner in the...
Optics Pioneer Lambrecht Dies Optics developer Karl T. Lambrecht, 97, died in January in Acapulco, Mexico. Born in Germany, Lambrecht developed techniques for making prisms and polarizers from calcite. He founded the Karl...
Guilty Plea Ends China Export Attempt Yao Yi, president of Lion Photonics Inc. of Beijing, pleaded guilty last month to criminal arms export control charges that accused him of trying to send military fiber optic gyroscopes to China. The...
Energy Prices High, Expectations Low PALO ALTO, Calif. -- Shouldn’t California’s electricity crisis be good news for the field of photovoltaics, which converts sunlight to electricity? "Sort of," seems to be the consensus of...
Industrial Laser Shipments Increase Manufacturers report that they shipped 30 percent more industrial lasers in the third quarter of 2000 than in the same quarter of 1999. The figure comes from a statistical report by the Laser Systems...
CEOs: Internet Scarier than Consolidation NEW YORK -- Changes in competition, the Internet, industry consolidation, price pressure and skill shortages are the top five marketplace challenges, according to chief executive officers who...
SDL Joins JDS Uniphase SAN JOSE, Calif. -- Integrated optics and low-cost amplets are two major goals for photonic component provider JDS Uniphase Corp. after government and shareholder groups approved the $13.5 billion...
Nortel Buys JDS Uniphase Diode Business ZURICH, Switzerland -- After months of negotiations and shareholder votes, two very close, very large photonics companies still hold more than 80 percent of the market share for 980-nm pump diodes....
Many Photonics Salaries Up Many photonics engineers and technicians have seen substantial salary increases over the last 12 months, according to the annual Lasers and Electro-Optics Manufacturers Association Compensation...
Camera ’Sting’ Ends in Two Arrests The US Customs Service has arrested two men accused of planning to export pan-tilt-zoom cameras and other unmanned aerial vehicle components to Pakistan. Tauquir Khan, a Pakistani national living in...
Machine Vision Exceeds Expectations ORLANDO, Fla. -- Machine vision suppliers said that North American revenues increased 25.5 percent between 1999 and 2000, surpassing the expectations of the Automated Imaging Association for 2000 and...
Accent on Applications
Infrared Imaging Keeps Feed Animals Fit The rate at which cattle metabolize feed can vary considerably. Despite this, their feed is portioned based on the average weight of the herd. That means that some animals are overconditioned and others aren’t conditioned enough. That type of variability, according to the National Cattlemen’s Association, can translate into a loss of $200 per head from an average market value...
Spectrograph Captures Data in Free Fall Aerial stunts are not typically associated with pure physics research. However, a group of physicists studying fullerenes --the nanoscale cagelike structures constructed of carbon molecules --have...
Optical Fibers Weave Illumination for Web Inspection Datacube Inc. designed its Black Widow web inspection system to detect, measure and classify defects in rolled products ranging from aluminum to paper to plastic film. Its ability to stitch and...
Presstime Bulletin
Newport Receives Outstanding Public Company Award Newport Corp. announced that it has received the Outstanding Public Company Award from the Orange County Chapter of the American Electronics Association (AEA). The award, presented May 24 at the AEA’s Eighth Annual Technology Awards ceremony, honored a publicly owned Orange County-based technology company for outstanding performance and leadership, including demonstrated growth in revenues...
Boeing Tests Targeting Pod on F-15E Boeing Co.’s Military Aircraft and Missile Systems Group in St. Louis has completed flight tests of a third-generation targeting and navigation system on one of its F-15E Eagle fighter/bombers....
Cree Boosts LED Efficiency Cree Lighting Co. of Goleta, Calif., announced that it has boosted the performance of a 390-nm LED by 20 percent. In recent tests, the InGaN device displayed a quantum efficiency of 32 percent and an...
Spacecraft Lands on Eros Culminating a five-year mission to explore the near-Earth asteroid 433 Eros, the NEAR Shoemaker spacecraft settled into its final resting place on the 21-mile-long, potato-shaped rock. It is the...
HP Backs Kidger Memorial Scholarship Fund EAST SUSSEX, England -- Tina Kidger is proud to announce that Hewlett-Packard Laboratories (HPL) has made a five-year commitment to the Michael Kidger Memorial Scholarship. In recognition of Michael...
PerkinElmer Launches Expanded Telecom Product Offerings PerkinElmer Optoelectronics introduced a new 10 Gb/s receiver product and the 512 Multiplexed InGaAs PIN Photodiode Detector Array used in optical networking applications. PerkinElmer’s new product...
PerkinElmer Optoelectronics Expands Line of High-Perfomance Receivers PerkinElmer Optoelectronics is building on the success of their 2.5 Gb/s fiber optic receivers by introducing a new 10 Gb/s Receiver at the 2001 OFC Conference in Anaheim, Calif. The 2.5 Gb/s miniDil...
PerkinElmer Introduces Higher-Resolution Multiplexed InGaAs PIN Photodiode Array PerkinElmer Optoelectronics expanded its Telecom product line by introducing a 512 Multiplexed InGaAs PIN Photodiode Detector Array at the 2001 OFC Conference in Anaheim. The 512 detector element Mux...
Officials Evaluating Fiber Optic Sign Since the Metro Blue Line train began service in Los Angeles in 1990, 54 people have died in train accidents involving pedestrians and vehicles. The Metropolitan Transportation Authority, therefore,...
Products
BAR-CODE READING Cognex Corp. has unveiled a camera-based vision sensor for reading 2-D matrix and linear bar codes. The company says that the In-Sight ID reader can read up to 50 codes per second, even those that have been poorly formed, distorted or degraded. This Ethernet-ready sensor can read codes on fast, continuously moving parts and can track them throughout the manufacturing process. Because it can read...
Cognex Corp.
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LIQUID CHROMATOGRAPHY JM Science Inc. has launched a refractive-index detector with a full-color liquid crystal for monitoring the detector status and baseline in real time. The Shodex model RI-101 has an automatic...
JM Science Inc.
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PHOTODIODE MODULES Integrated high-voltage modules for simultaneous operation of pulsed lasers and avalanche photodiodes are offered by Laser Components Inc. The modules have a compact nickel-plated housing and require...
Laser Components Germany GmbH
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ULTRAMINIATURE SENSORS Banner Engineering Corp. has produced ultraminiature sensors that can fit and function in confined areas. The VS2 series of convergent-mode sensors utilize a visible red sensing beam to provide a 15-...
Banner Engineering Corp.
WDM DEVICES A line of telecom products from Edmund Industrial Optics includes a high-isolation add/drop WDM system with insertion loss of <1.0 dB. Available in 1310-, 1550- and 1310/1550-nm wavelengths, the...
Edmund Optics Inc.
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FIBER OPTIC TRANSCEIVERS American Fibertek Inc. designed its low-profile fiber optic transceivers for use with pan/tilt/zoom (PTZ) integrated camera systems and for easy installation in small spaces. The M series consists of...
American Fibertek Inc.
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VISION PROCESSOR BOARD The GenesisPlus vision processor board from Matrox Imaging provides a memory bandwidth of up to 1 GB/s. The board integrates a Motorola G4 PowerPC microprocessor, which combines a 32-bit superscalar...
Matrox Imaging
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IMAGE ANALYSIS NIRx Medical Technologies Corp. has introduced its Dynot (for dynamic optical tomography) imaging system that enables the measurement and imaging of hidden structures in tissue and other highly...
Nirx Medical Technologies LLC
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MACHINE VISION SOFTWARE National Instruments has introduced version 6.0 of its IMAQ Vision Builder software for machine vision applications. With this software, LabView automatically draws virtual instruments and uses IMAQ...
National Instruments Corp.
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VIDEO STREAMER Foresight Imaging LLC has added the I-RGB frame grabber and video streamer to its line of imaging boards. The I-RGB offers image accuracy and high-speed video streaming from RGB video sources. Three...
Foresight Imaging, TIMS Medical
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VISION SYSTEM Adept Technology Inc. has unveiled AdeptVision AVI, a digital signal processor-based frame capture and image processing board with new software that features the ObjectFinder 2000. This geometric,...
Adept Technology Inc.
VIDEO CAMERA An industrial video camera, the XC-HR300, has been developed by Sony Electronics Inc. for machine vision, inspection manufacturing and metrology applications. This analog video camera offers...
Sony Electronics Inc., Visual Imaging Products Group
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HEAT EXCHANGERS The Terraview LCW series of thermoelectric heat exchangers from Solid State Cooling Systems has an operating temperature range of -20 to +90 °C, a cooling capacity range of 200 to 4000 W at 25 °C and...
Solid State Cooling Systems
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MICROELECTRONICS Remtec Inc. says it has improved its PowerPlug technology, which consists of thermal via fills for use in the fabrication of metallized ceramic substrates, chip carriers and packages. The company...
Remtec Inc.
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MICROSCOPY SOFTWARE The AxioVision Mark&Find software module from Carl Zeiss Jena GmbH is suitable for applications in the life sciences, materials analysis and quality inspection. It can be used to mark positions on...
Carl Zeiss Microscopy LLC
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TWO-AXIS STEERING MIRRORS Fast steering mirrors developed by Newport Corp. offer two-axis, high-bandwidth motion with microradian resolution. Flexure suspension confines the motion of the mirror for a single pivot point on or...
MKS/Newport
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MOTION CONTROL Performance Motion Devices Inc. has released a motion processor with surface-mount CMOS technology that offers single-axis control in one chip. The MC3110, the first in the Pilot family of products,...
Performance Motion Devices Inc.
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LIGHT PIPES Hero Electronics Ltd. offers light pipes for visible LEDs from Signal Construct, including types for use with infrared devices. The lightguides can be used with conventional and surface-mount types....
APC Hero
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UV RADIOMETER Spectronics Corp. says it has redesigned its short-wave UV digital radiometer to ensure accuracy for measuring the output of UV sources used for sterilization and for erasing EPROM chips and...
Spectronics Corp., Spectroline
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SCROLL PUMP Air Squared Inc. has unveiled a high-vacuum, two-stage rotary scroll pump designed for integration into lasers, biomedical equipment, leak detectors and other devices requiring clean, quiet...
Air Squared Inc.
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SPUTTERING SOURCE The Kurt J. Lesker Co. has announced the Torus 7 high-rate magnetron sputtering source designed for high-volume coating applications. It has target utilization of 40% to 60% and operating power of up...
Kurt J. Lesker Co.
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TUNABLE LASER SYSTEM Toptica Photonics AG formerley TuiOptics GmbH has incorporated a 30-mW laser diode from Nichia Corp. into its DL 100 tunable external cavity laser system. The DL 100 now provides more than 12 mW of...
Toptica Photonics AG
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CURING SOURCES The UV-VIS spot light sources in the Lightningcure LC5 series from Hamamatsu Corp. provide a 3000-h average life cycle. They are suitable for the UV curing of medical supplies, optical parts and...
Hamamatsu Corporation
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GREEN LED The IF-E93 LED from Industrial Fiber Optics has an optical output spectrum that peaks at 530 nm, which maps to the lowest attenuation window of PMMA plastic optical fiber. This green LED is capable...
Industrial Fiber Optics Inc.
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WHITE LEDs CCS America Inc. has introduced white LED illuminators for stereoscopic microscopes. The CMR series provides flicker-free lighting with controllable intensity. The illuminators can be attached to the...
CCS America Inc.
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GAIN-FLATTENING FILTER The TH-GFF gain-flattening filter developed by TeraXion Inc. can be used for the C-, L- and C+L-bands or Raman amplifier applications. It features an error function accuracy of ±0.1 dB over the...
TeraXion Inc.
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COLLIMATING LENS An accessory for fiber optic illuminators, a new collimating lens from StockerYale Inc. offers a source of parallel light suitable for directional backlighting and other applications in machine...
ProPhotonix Ltd.
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PLANOCONVEX LENSES CaF2 lenses from Linos Photonics GmbH now come standard with a high-power double-band antireflection coating. This coating has fundamentals at 157 and 193 nm, making the lenses suitable for use with...
Qioptiq Photonics GmbH & Co. KG
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SAPPHIRE SUBSTRATES Meller Optics Inc. has introduced single-crystal sapphire substrates for the epitaxial deposition of GaN and other III-V and II-VI thin films used to manufacture bright blue and green LEDs. The...
Meller Optics Inc.
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POSITIONING SYSTEMS The DTS 500 family of positioning systems for automated display and light measurement is available from Instrument Systems GmbH. It includes stand-alone X-Y-Z positioners with 260- to 560-mm maximum...
Instrument Systems GmbH
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CELL IMAGING AND ANALYSIS The TillvisTrack system, developed by T.I.L.L. Photonics GmbH, offers imaging and quantitative time-space analysis of multidimensional data on cellular processes. The imaging module, with an...
FEI Munich GmbH
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QUALITY CONTROL A 40-channel differential multiplexer module from Keithley Instruments Inc. is designed to acquire thermocouple temperature and vibration data, and to provide control outputs. The 7708 module is...
Keithley Instruments Inc.
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DIGITAL OSCILLOSCOPES Four Waverunner-2 instruments have been added to LeCroy Corp.'s line of two- and four-channel digital oscilloscopes. The instruments feature 350- to 500-MHz bandwidth, sampling rate from 1 to 4...
Teledyne LeCroy
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LASER DIODE ANALYSIS The LPA-9080 laser diode parameter analyzer introduced by ILX Lightwave Corp. has a power meter with 16-bit resolution and 12 photodiode input ranges from 50 nA to 10 mA. The analyzer's laser diode...
Newport - ILX Lightwave, Photonics
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LIGHTING SOFTWARE Lambda Research Corp. has announced the latest version of its TracePro software for illumination and optomechanical analysis. TracePro RC is a computer-aided design tool with an interface that can...
Lambda Research Corp.
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INSPECTION/MEASUREMENT The F150-3 vision sensor from Omron Electronics Inc. has dual-camera capability for two simultaneous inspections and measurements, such as the side and top of an object. The sensor offers an...
Omron Automation
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COMPUTING SOFTWARE Release 12 software developed by The Math Works Inc. includes new versions of Matlab 6 and Simulink 4, and upgrades of 60 other products. It features the Matlab desktop visual interface and math...
MathWorks Inc.
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SPECTROMETER Ophir Optronics Inc. has unveiled its WaveStar PC spectrometer that measures spectra from a wide range of sources, including continuous and pulsed sources from microwatts to watts in intensity. The...
MKS Ophir, Light & Measurement
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TEMPERATURE MEASUREMENT Far Associates has developed a multiwavelength pyrometer with a range from 800 to 2500 °C. The FMP2 system reports the accuracy of each temperature measurement to within 5°, typically. Emissivity is...
Far Associates
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LED TEST STATION Labsphere Inc. has released the OmniLED-LTS LED life test station. One measurement sequence performs optical and electrical tests simultaneously on an array of up to 20 LEDs in <60 s. Total...
Labsphere Inc.
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UV/VIS ANALYSIS PerkinElmer Instruments offers the Lambda series of UV/VIS spectrometers, double-beam instruments that are controlled with UV WinLab software, which is included with the instruments. Also included...
PerkinElmer Instruments
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