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Photonics Spectra - March 1999
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Issue Library
Features
Making it Bigger:
Many manufacturing processes utilize on-line microscopy. Microscopes (optical systems with magnification greater than one) align, inspect and guide robotic assembly of precision parts. Microscopes...
Catch a Wave:
Light travels in straight lines, as evidenced by shadow-casting phenomenon, and the pinhole camera. The pinhole camera also helps define a "ray" of light. A point source emits light rays in all...
The Small World of Medical Devices Gets Smaller
In many ways, the medical device industry is operating by the same adage the semiconductor industry has followed for years: smaller is better. This trend toward miniaturization is attributed to the...
Lasers in the Chemistry Lab
Physicists may explore the fundamental interactions between light and matter, but in the chemistry lab these interactions get put to work. The intense monochromatic light from lasers has found...
Tech Pulse
Tethered AFM Offers Operators More Flexibility
A researcher at the National Research Council of Canada has adapted a commercial atomic force microscope (AFM) to perform near-field scanning in a tethered mode. This could have a significant impact on testing photonic devices such as waveguides and ridge diode lasers that do not fit under conventional AFMs. Several years ago, senior scientist Rod Taylor began converting an AFM from Digital...
Atomic Force Microscope Could Draw Tiny Circuits
Scientists at Northwestern University in Evanston, Ill., have found a new application for atomic force microscopes: fabricating nanoelectronic circuitry. Researchers at the university discovered that...
Ballast Water Purified with UV Waves
If "bioinvasions" has a futuristic sound to it, the future is now. With the speed and volume of global travel, even organisms can find themselves quickly transplanted to a new environment. In some...
Nichia's Blue Diodes Find a Home
Barely a month after Nichia Chemical Industries Ltd. announced the first shipments of its blue laser diodes, a second company has rushed to incorporate the diodes into a laser system touted as a more...
Uncooled IR Detector Could Enable Cheaper Cameras
MSI engineers are working to develop an uncooled infrared detector that will enable the production of inexpensive IR cameras. Such a detector could penetrate such markets as vision assistance systems...
All-Photonic Circuits at Hand
Nanovation Technologies Inc. has entered the testing phase of its development of a fully integrated optical circuit, a technology that promises to deliver faster, higher-capacity communications to...
Phased out by Coherent Control
A "textbook" laboratory demonstration of a basic quantum physical principle could lay the groundwork for practical applications in photochemistry, forensics, quantitative analysis and quantum...
School of Optics Hosts Inaugural Conference
The Center for Research and Education in Optics and Lasers (CREOL) kicked off an inaugural conference Jan. 11 and 12 to celebrate the opening of its School of Optics at the University of Central...
UV Light Reveals Dinosaur Organs
A team of scientists has used UV radiation to examine the internal organs of a baby dinosaur fossil discovered in Italy more than 15 years ago. The fossil was originally found embedded in a limestone...
Company Promises Painless Glucose Monitoring
Diabetics around the globe have yearned for an alternative to the lancet and needle to monitor blood glucose levels. The wait may soon be over. Norcross, Ga.-based SpectRx Inc. has developed a device...
Polishing System Takes Pressure off Making Aspheres
As the use of aspherical optical components broadens, the industry is trying to overcome the challenges that the processing of those surfaces present. Researchers at the Delft University of...
Thomson Scattering Made Relative
In what is being hailed as groundbreaking research that could provide hints about how light and matter interact, physicists at the University of Michigan Center for Ultrafast Optical Science have...
Spectrometer Made Smaller, Less Expensive
Scientists at the University of Ulm in collaboration with LaserSpec Analytik GmbH have unveiled an atomic absorption spectrometer that uses a laser diode as a light source and a tungsten coil to...
Tuning Diodes
A burgeoning fiber optic communications industry is nourishing advances in support devices, not the least of which is the development of tunable laser diodes. Research groups are exploring methods to...
Volcanic Gas Measured at a Safe Distance
Volcanic gases offer important clues to atmospheric and subsurface processes, but methods that have proved safe have not proved easy. Scientists using ground-based IR remote-sensing techniques to...
light speed
British Aerospace Flies off with GEC's Marconi
This home to renowned air shows recently saw some stratospheric maneuvering of another sort when British Aerospace plc announced it would sign a deal to merge with the Marconi Electronics Systems...
New Technical Program to Highlight Aerosense
SPIE has announced that Aerosense '99 will take place in Orlando from April 5 to 9. The symposium this year offers a largely revised series of technical conferences for component and system designers...
Multimillion-Dollar Project Aims at Improving Weather Forecasting
One of the most significant limitations in weather forecasting is the inability to predict cloud formation in the atmosphere. To better understand this phenomenon, NASA has earmarked $119 million...
Laser Firm Disputes Diode Order
Semiconductor Laser International has acknowledged that its largest customer has canceled the bulk of an order for 500 diode lasers, citing defects in products it has received. According to a...
US Restricts Exports to Three More Russian Institutions
US National Security Adviser Samuel R. Berger announced recently that three Russian research institutions have been added to the "denied entity" list maintained by the US Bureau of Export...
Digital Optics Corp. Enters 'Fast 500'
Deloitte & Touche has named Digital Optics Corp. to its Fast 500 program, a ranking of the 500 fastest-growing technology companies in the US. Rankings are based on revenues over the five-year...
GE Lighting and Emcore to Make White LEDs
GE Lighting and Emcore Corp. of Somerset, N.J., have embarked on a joint venture to produce white light-emitting diodes (LEDs). The agreement creates Gelcore LLC in Cleveland and signals GE's entry...
Miniature Display Market Set for Record Growth
Total shipments for microdisplays reached 431,900 units last year with an estimated average annual growth rate of 43.2 percent over the next five years. That's the projection from a recently released...
Robotic Vision Systems Sheds Ice-Detection Unit
Robotic Vision Systems Inc. in Canton, Mass., has sold the assets and technology of its wide-area ice-detection product line to BF Goodrich Aerospace's Aircraft Sensors Div. Six years ago, Robotic...
JDS Fitel and Uniphase Are Engaged
JDS Fitel Inc. of Nepean, Ontario, Canada, and Uniphase Corp. have signed a merger agreement to combine their fiber optic component supply businesses into a single company called JDS Uniphase Corp....
Methode Buys Connector Manufacturer
Methode Fiber Optic Products of Chicago has acquired Stratos Ltd. of Haverhill, UK. Formerly AB Stratos Ltd., the company manufactures fiber optic connectors capable of withstanding harsh...
Fiber Optic Backlighting Rivals Join Forces
Lumitex Inc. of Strongsville, Ohio, has merged with Poly-Optical Products Inc., combining technologies and product offerings to expand their presence in the electronic display markets. The two...
Medical Sciences Improve 'Market Share' of Academic R&D
The medical science sector has shown the largest increase in "market share," according to a recent brief from the National Science Foundation, which tracked academic R&D spending between 1973 and...
Wyant Named Director of Optical Sciences Center
James C. Wyant, professor of optical sciences at the University of Arizona in Tucson, assumed the role of director of the school's Optical Sciences Center. He replaces Richard C. Powell, who is now...
Accent on Applications
CCD Camera Enables High-Resolution Image Analysis
The quick image capture and archiving ability of video-based imaging systems has lured materials analysts away from film-based documentation methods. More high-end technologies, such as...
Rugged Interferometer Built for Spaceflight
Some things just aren't made for this earthly existence. Scientists at the University of California at Irvine hope to prove that growth of macromolecular protein crystals and large biological...
Femtosecond Camera Takes Telecom System's Pulse
The Optical Communications Research Group at the University of Bristol carries out research on optical components and subsystems for communications applications. As in most telecommunications...
Tripled Nd:YAG Fills Gap by Drilling Holes
Like everything else on microelectronic circuitry boards, the diameters of microvias are shrinking. Mechanical drilling methods, still the most common, are limited to creating hole diameters greater...
Presstime Bulletin
Telescope Installed at Air Force Base
The US Air Force installed a $2.5 million telescope Jan. 22 at a new research laboratory site in White Sands, N.M. The telescope is part of a system for improving the Air Force's ability to track missiles and destroy them with lasers. The 1-m telescope will send and receive laser light to and from the site and Salinas Peak, another White Sands site 35 miles away. They will track how the...
Intel and Analog Devices Form Communications Chip Venture
Computer chip maker Intel Corp. in Santa Clara, Calif., and Analog Devices Inc. in Norwood, Mass., have formed a venture to design and manufacture digital signal processors for communications and...
Photonics Lab Opens in Colorado
The Colorado Advanced Photonics Technology Center at the former Lowry Air Force Base in Aurora opened in January. The center is the result of a collaboration of the Colorado Advanced Technology...
Airborne Digital Sensor Makes Maiden Voyage
LH Systems LLC in San Diego, in cooperation with the German Aerospace Center in Berlin, completed the first test flight of its airborne digital sensor. The sensor can record data at high resolution...
Companies at Risk of Stock Delisting
The Nasdaq Stock Market Inc. has notified Stocker & Yale Inc. of Salem, N.H., and Semiconductor Laser International Inc. of Binghamton, N.Y., that they are out of compliance with the listing...
Products
SIGNAL DETECTION
New Focus Inc. has improved its balanced photoreceivers to offer more than 25-dB common-mode rejection ratios and high gain. Three photocurrent monitors are provided, one for each photodiode and...
Newport - New Focus
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FUSED FIBER COUPLERS
Alliance Fiber Optics Products Inc. (AFOP) has introduced ultralow polarization-dependent-loss (PDL) fused fiber couplers that the company says offer exceptional performance with less than 0.5-dB PDL...
Alliance Fiber Optic Products Inc.
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FIBER OPTIC ISOLATORS
Micro-Optics Inc. has announced low-loss, high-extinction-ratio, polarization-maintaining fiber optic isolators for the 1310- and 1550-nm wavelengths. These devices are available in single- and...
Micro-Optics Inc.
VISION PROCESSING
The MVS-8200 embedded machine vision series from Cognex Corp. consists of hardware platforms for PCI, CompactPCI and VME architectures. Each has a 200-MHz on-board Intel MMX processor for...
Cognex Corp.
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FIBER TESTER
Laser Components GmbH developed its Fibercheck-LC test laser to identify breaks in optical fibers and to recognize abnormally high attenuation levels. Similar in appearance to a laser pointer, the...
Laser Components Germany GmbH
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IMAGING BOARDS
Euresys s.a. has introduced its Multi family of frame grabbers and frame processors that feature a modular architecture, a choice of acquisition modules and optional embedded digital signal...
Euresys SA
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CCD CAMERA SENSOR
Sony Electronics Inc. introduces the Exwave Had sensor for outdoor applications. It offers 1/50 the smear and more than twice the sensitivity of the company's previous Had cameras. The 1/2-in. sensor...
Sony Electronics Inc., Visual Imaging Products Group
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HIGH-SPEED IMAGING
Oxford Lasers has launched its VisiSizer, a system that enables not only the simultaneous measurement of droplet size and velocity, but also visualization of the droplets. The VisiSizer software...
Oxford Lasers Inc.
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VIDEO OBJECTIVES
The HLML series video objectives from Titan Tool Supply Co. Inc. have high magnification with working distances of more than 5 in. Designed for industrial and electronic applications and quality...
Titan Tool Supply Inc.
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AUTOMATION SOFTWARE
National Instruments has released Version 5.1 of the LabView development environment. The new version streamlines the development of Web-enabled applications. Users can create smaller executables for...
National Instruments Corp.
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RECIRCULATING CHILLERS
The Kodiak chillers from Lytron Inc. come in 600-, 1100-, 2200- and 4500-W versions with electrical, pump and controller options for customization. Designed for reliable cooling for analytical,...
Boyd Corp.
LAB INSTRUMENTS
A bidirectional reflectometer from Surface Optics Corp., Model SOC-200, maps the bidirectional reflectance distribution function (BRDF) of surfaces, paints, coatings, liquids and particles. This lab...
Surface Optics Corp.
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OPTICAL MODELING
Optical Research Associates issues LightTools Version 2.0.3 for PC and Sun platforms. It offers new features and an expanded ability to accurately represent real-world light sources and to trace rays...
Synopsys Inc., Optical Solutions Group
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POLISHING PITCH
Meller Optics Inc. is offering ready-to-use optical lapping pitch manufactured by Gugolz that eliminates the need for screening or filtering. The pitch is made from wood resin rather than petroleum...
Meller Optics Inc.
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LASER DIAGNOSTICS
The TimeWarp autocorrelator designed by Elliot Scientific Ltd. is available from Positive Light. Suitable for mode-locked Ti:sapphire lasers, the device is based on the Michelson interferometer...
Elliot Scientific Ltd.
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LASER DIODE BARS
Coherent Inc.'s Semiconductor Group has announced a tripled wavelength range for its high-power laser diode bars. The 40-W bars come in wavelengths from 780 through 840 nm. Placed on a passively...
Coherent Inc.
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DIODE LASER ARRAYS
Opto Power Corp. offers a line of diode laser arrays that uses fiber bundle technology. With 90% of the power in a 0.12 NA, the enhanced brightness of the FB series increases power density and depth...
Opto GmbH
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DIODE DRIVER
Analog Modules Inc. has introduced its model 7701 high-power OEM laser diode driver. Designed to drive pulsed or CW diode loads for diode-pumped solid-state laser applications, the model 7701...
Analog Modules Inc.
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INDUSTRIAL LASER
Rofin-Sinar Inc. is offering its DL series of high-power compact diode lasers. The company says the lasers' small size, low weight and lack of moving parts make them suitable for integration with...
Rofin-Sinar Inc.
LASER MARKING
The VectorMark from Trumpf Inc.'s Laser Technology Center is a compact, diode-pumped laser marking system. Its small size and 110/230-V electrical installation makes it suitable for positioning on a...
TRUMPF Inc., Laser Technology Center
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TUNABLE LASER
Newport Corp. has unveiled its model 2010 series external-cavity tunable laser. Based on a Littman-Metcalf cavity, the laser is available in more than 20 diode modules, so the user can scan...
MKS/Newport
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LENS ACCESSORIES
Fiber optic collimating lens accessories designed to increase the proficiency and convenience of the optical interface in a spectrometer system are available from Ocean Optics Inc. The 74-90-UV...
Ocean Optics - Part of Ocean Insight
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TELECENTRIC LENS
The Wide-Eye from Light Works is a telecentric lens system with a 145-mm clear aperture for use with matrix and linear array cameras. Depth of field can be up to 12 in., depending on the aperture...
II-VI Aerospace & Defense
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MOTION PROCESSOR
Performance Motion Devices Inc. has unveiled its MC1231A advanced multiaxis motion processor that promises to improve brushless motor stability by directly providing sinusoidal commutation. A...
Performance Motion Devices Inc.
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SERVOMOTORS
The BLMH series of brushless linear servomotors from Aerotech Inc. feature a magnetic circuit design that provides continuous force ratings from 249 to 716 N in a 114 x 51-mm package. The company...
Aerotech Inc.
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NIR ANALYZER
The LabSpec Pro from Analytical Spectral Devices Inc. is a truly portable quality control instrument for the chemical, pharmaceutical, petrochemical and food industries. It weighs 15 lb and has a...
ASD Inc.
NIR SPECTROPHOTOMETER
McPherson Inc. has released a stray-light-rejecting NIR spectrophotometer that can be used for reflectance and transmittance measurements at varying angles. It features a single-beam optical geometry...
McPHERSON
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RAMAN MICROSCOPE
Renishaw Inc.'s Raman Imaging Microscope combines 2-D imaging and scanning spectroscopy in one system. Suitable for research and quality inspection of semi- and superconductors, carbon fibers and...
Renishaw Inc.
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