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Photonics Spectra - September 2001
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Issue Library
Features
Technology Close-Up
For designers of fiber optic systems, the goal has always been to provide more capacity at lower cost per bit. For more than 20 years, the capacity of systems has doubled every 18 ...
Photonics Design & Solutions
A number of applied optical measurement tasks require measuring linear displacement or elevation of a radiant source. Many typical photodiode arrays designed for this purpose u...
In Search of High-Power Optics
Advances in high-power and high-energy laser systems have made available power densities in excess of 109 W/cm2. At such power levels, a number of damage mechanisms can lead to per...
Photonics Pointers
Although a lot of unused fiber sits in the ground, many links in fiber optic networks operate at or near capacity. The importance of each line has increased with the amount of traf...
Faster vs. Denser: Networks Reach Another Crossroad
Pretty much any engineer with bills to pay will design and develop systems from a simple principle: Maximize performance while minimizing costs. Different disciplines measure succe...
In Search of the Ultimate Diode Laser
High-power diode lasers are a focal point for laser technology. In recent years, they have developed from an attractive but costly solution for niche markets into a key laser produ...
In Search of the Ultimate Image Sensor
The mainstream in image sensors for high-end studio photography has been 6-megapixel CCDs, and the market is now adopting 16.8-megapixel image sensors as the new reference standard...
Tech Pulse
Micromirrors Improve Detectors
DALLAS -- Researchers at Southern Methodist University have proposed a design for better infrared detectors. The micromachined devices promise to measure the actual temperature of ...
Laser Enables Precision Arc Welding
COLUMBUS, Ohio -- Welding is big business. Approximately $2 billion and $600 million are spent annually on arc welding and laser welding equipment, respectively. Now researchers at...
Explaining Why Oil and Water Don’t Mix
EUGENE, Ore. -- It’s a principle most seventh-graders know: Oil and water don’t mix. Of course, there is more to the story. They do interact at some level; for example, oil spreads...
Plastic Fiber Detects Methanol
KOFU, Japan -- Methanol is a promising energy source for fuel cells. But while the primary product of a methanol fuel cell is warm water, a leaky cell can pose a hazard because the...
Fluorescent Molecules Detect Metals
A research team at Brigham Young University in Provo, Utah, has synthesized a molecular sensor that reveals the presence of zinc in water. The work, which appeared in the July 13 i...
Deformable Mirror Tests Adaptive Optics
CHARLOTTE, N.C. -- The advent of adaptive optics systems, which correct for the aberration caused by atmospheric turbulence, has dramatically improved the resolution of ground-base...
Laser Uncovers Cracks in Lumber
JOENSUU, Finland -- When wood is dried, its surface layer sometimes shrinks, causing internal stresses that can develop into tiny cracks. And these cracks, invisible to the naked e...
CO2 Best for New Interior Panels
VIGO, Spain -- Automobile manufacturers constantly seek to improve their product’s marketability, performance and profitability. One innovation is the replacement of standard inter...
Doubled Diode Offers Blue Output
ST. ANDREWS, UK -- Research on semiconductor lasers in recent years has focused on making them small and making them blue. Compact blue lasers can provide diffraction-limited spots...
Image Processing Aids Art Restoration
SANTA BARBARA, Calif. -- On Sept. 26, 1997, a magnitude 6.0 earthquake in the Umbrian and Marches provinces of central Italy brought the Cimabue and Giotto frescoes in the Basilica...
Ultrasound Probes Laser Damage
LIVERMORE, Calif. -- Researchers at Lawrence Livermore National Laboratory are developing an ultrasound method to assess laser-induced damage to the vacuum optics in high-peak-flue...
Compound-Cavity Diodes Promise T-Rays
GLASGOW, UK -- The last few decades have been marked by the rapid opening of the high-frequency electromagnetic spectrum for communications, detection and imaging. Remarkably quiet...
Simplicity Eases Image Retrieval
UNIVERSITY PARK, Pa. -- A picture is worth a thousand words, but computerized searches for a digital image involve only a few because they examine only the key words or description...
Silicon Structures Offer Tunable Bandgap
UNIVERSITY PARK, Pa. -- Tunable photonic bandgap materials show promise as light-modulation devices for telecommunications, display and data storage applications, but existing solu...
Another Setback for Solar Sail
First an explosion postponed the test of the Cosmos 1 solar sail (see June issue, page 51). Then the rescheduled flight was delayed by the salvage effort for the ill-fated Kursk su...
RoboCup Comes to the US
Teams from around the world participated in the fifth annual RoboCup competition in Seattle, the first time the event has been held in the US. Four classes of robots, including mod...
Retinal Chip Study Continues
As part of the second round of clinical trials authorized by the Food and Drug Administration, surgeons have implanted microscopic chips in the eyes of three patients suffering fro...
Microspheres Identify Odors
MEDFORD, Mass. -- For anyone who has trouble telling when the milk has gone bad, help may be on the way, thanks to an artificial nose that is under development at Tufts University ...
Light Obscures the Night Worldwide
Light pollution is a global problem, according to the results of a study conducted by researchers from the National Oceanic and Atmospheric Administration’s National Geophysical Da...
Nanowires Produce Laser Light
Researchers at the University of California and Lawrence Berkeley National Laboratory in Berkeley, Calif., have developed a 385-nm laser based on nanowires of zinc oxide. If the op...
Space Missions Look to Light
PASADENA, Calif. -- To maximize the amount of data returned by space missions such as the Cassini-Huygens mission to Saturn’s moon Titan, compression techniques are used to reduce ...
Mirror Deemed Playground Hazard
Accidents on the playground typically involve hard surfaces, lead paint and sharp edges. A plastic dome from Kompan Inc. of Olympia, Wash., a subsidiary of Kompan A/S of Ringe, Den...
Antimissile Makes Its Mark
The second system-level integrated flight test of the US Ground-based Midcourse Defense Segment (formerly National Missile Defense) program’s kinetic antimissile system came off wi...
Light Is Key to Quantum Computing
SANTA BARBARA, Calif. -- Researchers at the University of California and Pennsylvania State University in University Park have discovered that taking a light touch may be the right...
Air Force Satellite Launched
The US Air Force has launched the 21st Defense Support Program reconnaissance satellite aboard a Titan IV rocket. The satellites, which were first put into service in the early 197...
Vision System Tells Who’s Who in the Nest
PITTSBURGH -- In recent years, computer scientists have used the study of social insects to improve their own work. So-called ant algorithms have been applied to the optimization o...
Report: Optical Scanning Best for Voting
On Dec. 15, 2000, two days after resolution of the US presidential election crisis, California Institute of Technology in Pasadena and Massachusetts Institute of Technology in Camb...
light speed
Wanted: History of Laser Printer
The latest photonics pursuit on BountyWest.com offers $10,000 for documentation dated before July 7, 1977, describing a device that uses a laser to create alphanumeric characters w...
Machine Vision Patent to Go to Trial
RENO, Nev. -- A federal judge declined to throw out Jerome H. Lemelson’s machine vision patents based on expert opinions, so the Cognex patent lawsuit against the Lemelson Medical,...
Tunable Lasers Prompt Lawsuit
WILMINGTON, Del. -- Tunable laser technology is the basis for a lawsuit in which Photonetics accuses New Focus Inc. of infringing a US patent. Photonetics Inc. of Peabody, Mass...
Lucent Sells Optical Fiber Businesses
MURRAY HILL, N.J. -- Several months after rumors about Lucent Technologies Inc. trying to dump its optical fiber operations, three companies have carted off pieces of the business ...
Is Fiber Glut Real?
Don’t believe everything you read in the mainstream media, says TeleChoice: ’No widespread fiber glut exists.’ Despite the gloomy headlines about five-digit layoffs, billion-do...
Display Market Falls
Flat panel display revenues for 2001 will fall by 5 percent compared with 2000 revenues, according to a report from DisplaySearch. The firm says the $22.8 billion in 2001 reven...
Group Examines Photonics Manufacturing
Companies and associations that are pursuing photonics manufacturing standards should work together, according to papers from photonics- and manufacturing-related associations and ...
Corning Defends Fused Silica Lawsuit
Heraeus Quarzglas GmbH has sued Corning Inc. in Germany, alleging that the American firm is infringing a European patent for fused silica glass used in semiconductor manufacturing ...
Accent on Applications
The Many Colors of Fruit
Two major problems with cherries are cracking and bruising. Cracking can occur when it rains near a harvest time, causing the cherry to grow too fast and bursting the skin. Photoni...
Ambulance Mechanics Get an Eyeful
Instant cameras, initially, were a boon to the auto repair industry, allowing mechanics who venture into unfamiliar territory to retrace their steps by reconstructing each phase of...
Sapphire Probes the Ocean’s Depths
In vents in the seafloor of the Juan de Fuca Ridge off the coast of British Columbia and Washington state, a community of organisms thrives amid a seething cauldron of superheated ...
Stargazing for Better Communications
For many reasons, it is not a trivial task to wire older buildings with optical fiber. Economic and physical obstacles combine to prevent many businesses from having access to high...
Presstime Bulletin
Optelecom to Supply Video Equipment for Air Traffic Control
Optelecom Inc. of Gaithersburg, Md., has received a contract from BFi Optilas for its high-resolution video equipment. The transmitter/receiver systems will be used to upgrade air ...
Security Industry Requests Federal Surveillance Law
Citing public concern with the deployment of facial-recognition systems that identify criminals in public places, Visionics Corp. of Jersey City, N.J., and the Security Industry As...
Melles Griot Delivers First Characterization System on Multiunit Contract
Melles Griot has shipped the first automated diode laser test and characterization system, on a multiunit order, to a leading photonics component manufacturer. The remainder of the...
Kodak Introduces New Software To Allow Enhanced Analysis of Digital Images
Eastman Kodak Company today announced a powerful and flexible software package to compliment its family of complementary metal oxide semiconductor (CMOS) image sensors. Sensor Stu...
’GoreCam’ Satellite Project Shelved: No Available Flight
Triana has not worn the years of partisanship well. Dubbed the "GoreCam" by detractors, the NASA satellite survived a 1999 funding cut and scrutiny by the National Academy of Scien...
David Black Joins Coherent Semiconductor Division as North American Sales Manager
Coherent, Inc., Semiconductor Division has named David Black North American Sales Manager. Black began his new position September 27, 2001. Black comes to Coherent from Continu...
Pill-Size Camera Approved for Endoscopy
The Food and Drug Administration (FDA) has approved the M2A Swallowable Imaging Capsule from Given Imaging Ltd. of Yokneam, Israel, for use with gastrointestinal endoscopy. The 27-...
Products
PULSE ACQUISITION
Designed for high-speed laser pump-probe spectroscopy, the femtosecond laser pulse acquisition system from Infrared Systems Development Corp. provides 16- to 1024-channel simultaneous sampling from multi-element HgCdTe detector arrays. The company says it integrates and captures detector signals from short-pulse, high-energy laser systems with excellent linearity and true 16-bit resolution. The...
Infrared Systems Development Corp.
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OPTICAL SWITCHING CARD
The model 7090 optical switching card from Keithley Instruments Inc. is available in 1 x 4 and 1 x 8 switching configurations for the assembly of systems that can accommodate up to four or eight...
Keithley Instruments Inc.
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OPTICAL COATING
The Spectore electron beam optical coating system is part of the expanded Spector family of products from Veeco Instruments Inc. Suitable for high-throughput antireflective coatings for DWDM filters,...
Veeco Instruments Inc.
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ADD/DROP MULTIPLEXERS
Alliance Fiber Optic Products Inc. has launched all-passive filter-based, optical add/drop multiplexers that achieve 50-GHz bandwidths over telecommunications operating conditions without temperature...
Alliance Fiber Optic Products Inc.
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FO SOURCE MODULE
The FOS-79800E fiber optic source module designed by ILX Lightwave for use with its FOM-7900B multichannel fiber optic test system is suitable for active and passive wavelength division multiplexing...
Newport - ILX Lightwave, Photonics
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COATED LENSES
NIR I- and telecom-NIR-coated versions of Edmund Industrial Optics' microplanoconvex lenses are now available. They come in diameters ranging from 1.0 to 3.0 mm with effective focal lengths from 0.6...
Edmund Optics Inc.
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REMOTE-HEAD CAMERA
The 1K-7XD remote-head video camera from Toshiba Imaging Systems features a 1/2-in. progressive-scan CCD with square pixels. Designed for use in machine vision applications, it produces 490 x 480...
CANON MEDICAL COMPONENTS U.S.A., Video Sensing Devices
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AUTOFOCUS ZOOM CAMERAS
The high-resolution 20Z704 and medium-resolution 20Z714 autofocus zoom cameras from Videology Imaging Solutions Inc. feature mirror mode, gain and gamma control, negative image option and variable...
Videology Industrial-Grade Cameras
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7-W DIODE LASER
The Avia 355-7000, introduced by Coherent Laser Div., is a frequency-tripled, Q-switched, diode-pumped solid-state UV laser. Offering power greater than 7 W at 40 kHz, the laser is suitable for...
Coherent Inc.
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DATA ACQUISITION
National Instruments has unveiled the high-speed NI 6115 data acquisition device for PXI/CompactPCI. It features four differential 12-bit analog input channels, each able to simultaneously sample at...
National Instruments Corp.
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DIGITAL AMPLIFIER
Boston Electronics Corp. offers the model 442 digital lock-in amplifier from Scitec Instruments. It comprises a 100 x 160-mm PC board that can be used alone or embedded in an instrument. The...
Boston Electronics Corp.
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HIGH-HEAT ADHESIVE
Aremco Products Inc. has developed Ceramabond 618, a high-temperature, silica-based ceramic adhesive for bonding low-expansion ceramics, glasses and quartz. It is used in the assembly of infrared...
Aremco Products Inc.
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FIBER RIBBON STRIPPER
The portable FiberStrip 7035 semiautomatic fiber ribbon stripper available from Schleuniger can be used in production or during the installation of cable systems with fiber ribbons. It serves as a...
Schleuniger Inc.
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SIX-AXIS ROBOT
The AdeptSix 300 six-axis robot, available from Adept Technology Inc., is suitable for applications including assembly, packaging, machine load/unload, quality inspection and sorting. It can be...
Adept Technology Inc.
DIODE LASER
A broad-area, 810-nm OEM diode laser is available from Coherent Photonics Group, Semiconductor Div. This 500-µm emitting device is suitable for integration into direct diode thermal medical...
Coherent Inc.
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ULTRAFAST LASER
Imra America Inc. has introduced the FCPA-2 ultrafast all-fiber-based laser, which can reach the microjoule pulse energy range without need for a Ti:sapphire amplifier. It provides 200-fs, 2-µJ,...
IMRA America Inc.
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FIBER OPTIC LASER
A pulsed Nd:YAG fiber optic laser system for welding applications has been released by Lasag AG. The SLS 200 C has a working range of up to 220 W and a compact design that integrates into new or...
Rofin-Lasag AG
LASER PROFILE SCANNER
A compact, computer-controlled, noncontact laser profile scanner is available from Optical Gaging Products Inc. Its low-power laser produces high-resolution, 2-D profiles that can be analyzed using...
OGP (Optical Gaging Products)
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OPTICAL DESIGN SOFTWARE
Optical Research Associates (ORA) has released version 9.0 of its Code V Windows-based optical design software featuring menus and toolbars that can be customized to meet user needs. Functions...
Synopsys Inc., Optical Solutions Group
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BLUE LEDS
MegaBright blue LEDs from Cree Inc. exhibit a typical brightness of 10 mW. This is a level that, the company says, matches the highest brightness of comparable sapphire-based devices. Applications...
Wolfspeed Inc.
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UV LIGHT SOURCES
Dymax Corp. has released a line of modular flood and focused beam light sources, including reflectors, power supplies, shields and stands, and shutters. Constructed of lightweight brushed aluminum,...
Dymax, Headquarters
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WHITE LED MODULES
White LED ringlights and line lights from StockerYale Inc. produce uniform bright white light for gray-scale and color machine vision applications. Designed primarily for assembly, inspection,...
ProPhotonix Ltd.
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UV/VIS CURING
A mercury-free, pulsed UV/VIS curing system designed by Xenon Corp. features two lamp housings that can be independently operated at separate locations in manual, semiautomated or fully automated...
XENON Corporation
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OPTICAL COMPONENTS
Custom-engineered components molded from engineering plastics for precise photonics applications are available from Matrix Inc. Included are optical subassemblies that have integral lenses and...
Matrix Inc.
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OPTICAL DESIGN
Oslo 6.1 optical design software offered by Lambda Research Corp. provides enhanced zoom lens design support, an expanded graphical user interface and an improved HTML-based online help system. The...
Lambda Research Corp.
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SPATIAL PHASE MODULATORS
Hamamatsu Corp. has introduced programmable spatial phase modulators for real-time correction of optical aberrations in adaptive optics applications. The X8077 and X8267 offer display resolutions of...
Hamamatsu Corporation
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QUAD TRANSCEIVER
Vitesse Semiconductor Corp. has added model VSC7216-02 to its family of CMOS serial communications integrated circuits (ICs). The device is a quad multigigabit interconnect IC that consumes 700 mW,...
Vitesse Semiconductor Corp.
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OPTICAL DESIGN SOFTWARE
Optical Research Associates (ORA) has released version 9.0 of its Code V Windows-based optical design software featuring menus and toolbars that can be customized to meet user needs. Functions...
Synopsys Inc., Optical Solutions Group
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MOTION CONTROL
Performance Motion Devices Inc. has released the Pilot MC3410, a single-chip instrument designed to control motion of a single axis in microstepping applications. It outputs a selectable 10-bit,...
Performance Motion Devices Inc.
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FIBER PACKAGING
The PosMaster system for fiber optic component manufacturing saves time by synchronizing measurement and motion, according to its manufacturer, ficonTec GmbH. Manual and automatic positioning is...
ficonTEC Service GmbH
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MOTION CONTROL
An RS-232 to RS-422 serial adapter for use with its motion control products is available from Advanced Micro Systems Inc. The SIN-10 supports speeds of up to 115k baud and has both input and output...
Advanced Microoptic Systems GmbH
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X-Y-Z MICROSCOPE STAGE
A microscope stage from Applied Scientific Instrumentation (ASI) provides submicron accuracy for the X, Y and Z positions. All axes of the MS2000 X-Y-Z use closed-loop direct-current servomotors with...
Applied Scientific Instrumentation Inc.
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VISION PROCESSING
Sarnoff Corp. and Pyramid Vision Technologies have introduced three software development kits for the Acadia I vision card for PCs. The kits enable six real-time video-processing applications,...
SRI International, Integrated Systems & Solutions
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MEASUREMENT & INSPECTION
Newport Corp. offers a product line composed of two systems that are based on its Chameleon technology. The Cognito I, II and III are suitable for use in ultrahigh-precision measurement and...
MKS/Newport
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IP CORE
Furaxa Inc. has developed a method for generating a string of picosecond-range electrical sampling apertures and pulses, requiring only a single transition of a control input signal. The...
Furaxa Inc.
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POWER METER
A multifunctional, handheld optical power meter with an integrating-sphere-based detector has been released by Gigahertz-Optik Inc. Designed for telecommunications testing, the P-9710 optometer and...
Gigahertz-Optik Inc.
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DEVELOPMENT PLATFORM
Infineon Technologies AG has unveiled its development platform for the multitenant/multidwelling unit (MTU/MDU) market. Combining the company's 10BaseS and Ethernet switching technologies, the system...
INFICON
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PROCESS ANALYZER
The UV-P ultraviolet process analyzer from Ocean Optics Inc. is a fully integrated fiber-based system, configurable for hazardous or nonhazardous environments and designed for remote online...
Ocean Optics - Part of Ocean Insight
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SIMULATION SOFTWARE
Comsol Inc. has released Femlab 2.1 for 1-, 2- and 3-D simulations of physical phenomena in science and technology. The software offers a numerical solver for computing problems with components on...
COMSOL Inc.
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WAVEFRONT ANALYSIS
A wavefront analyzer that enables beam quality testing of fiber optic devices during manufacture has been introduced by Optikos Corp. The WavePro system, based on Shack-Hartmann technology, is...
Optikos Corporation
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TRANSCEIVER EVALUATION
Finisar Corp. has unveiled an evaluation system for 10-Gb/s optical transceiver modules. The FXES-1030 is a stand-alone unit with bit-error-rate testing functionality and a standard 300-pin,...
II-VI Finisar
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