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Photonics Spectra - August 2000
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Issue Library
Features
Appearances Can Be Deceiving
Most commercial lens assemblies such as lenses for cameras and microscope objectives are reasonably priced (on the order of several hundred dollars) and are available immediately. A custom-designed...
Defining Performance
In laser applications such as materials processing, environmental monitoring and confocal microscopy, understanding the laser’s performance is critical. A laser that operates erratically as it...
Great Gratings
Dense wavelength division multiplexing (DWDM) is the most effective means for expanding communications capacity in optical networks. The technology places several closely spaced wavelengths of light...
How Photons Work
The study of light has been inextricably linked to the advancement of scientific thought for more than 2000 years. From Euclid to Newton to Einstein, many of the great treatises of science have been...
For Pixels, Size Matters
In the rat race for ever-higher pixel counts for the digital still camera market, it is clear that, if the chip size must remain constant, then "more pixels" inherently means "smaller pixels." The...
Photonics Rules of Thumb
Scientists and engineers tend to want to answer simple relational questions with a blackboard covered with equations, even when questioners just want a rough estimate to gauge whether a change would...
Squelch the Noise
The silicon positive-intrinsic-negative (PIN) photodiode is a ubiquitous component that detects light in photometric devices from fluorescence instruments in the laboratory to laser speed guns on the...
High-Tech ’Vision’ Test
Modulation transfer function is the predominant measure of the performance of image-forming lenses and systems. It can be measured objectively and calculated from lens design data, enabling...
Tech Pulse
Laser Aims to Reduce Ceramic Costs
WEST LAFAYETTE, Ind. -- Because of their exceptional hardness, resistance to wear and stability at high temperatures, advanced ceramics are becoming popular for precision parts in aerospace,...
1.8-W Diode to Pump Fiber Amplifiers
CANBERRA, Australia -- Researchers at Australian National University have created a high-power 980-nm diode laser specially designed to pump the erbium-doped fiber amplifiers crucial to...
Laser Display Challenges Cathode-Ray Tubes
ORLANDO, Fla. -- A new display technology is looking to upstage the cathode-ray tube. Researchers at the University of Central Florida have developed a display that features a plastic screen peppered...
Dopant Level Improves Organic LEDs
A team from Ludwig Maximilian Universität in Munich, Institut Ackermannweg in Mainz and Universität Potsdam, all in Germany, has announced the results of a study of organic LEDs that may...
Glasses Make Versatile Crystals
SOUTHAMPTON, UK -- Photonic quasicrystals with complete bandgaps can be made in glasses that are typically used for fiber optic telecommunications. Researchers at the University of Southampton have...
Gold Clusters Are Optically Active
ATLANTA -- Metals, as a rule, do not display optical activity. So researchers at the Georgia Institute of Technology were surprised to find that their gold nanocrystals did so intensely and across...
IR Imager Uses Missile Technology
WEST LAFAYETTE, Ind. -- A form of infrared imaging developed by the military for heat-seeking missiles is helping researchers rapidly identify catalysts that could improve chemical manufacturing...
Old LPs Find New Use in X-Ray Optics
STOCKHOLM, Sweden -- In trying to develop a cheap way to focus x-rays, perhaps it should be no surprise that researchers turned to German technopop group Kraftwerk for help. The scientists bought one...
Lunar Glass Beads Offer Clues to Craters
BERKELEY, Calif. -- Comets and asteroids have bombarded the moon and Earth over the last 3 billion years, leaving craters in their wake. But the frequency of these bombardments -- and whether...
New Technology: Pen on Paper
LUND, Sweden -- Let’s face it. No matter how much technology advances in the computer world, many users still feel more comfortable with good old-fashioned pen and paper. Although a new pen...
Plastic Film Makes for Light Travel
ALBUQUERQUE, N.M. -- Moving mass into space is an expensive proposition. The Next Generation Space Telescope, tentatively scheduled for launch in 2008, will weigh 15 kg/m2 of mirror surface, lean...
Polymers Improve Electro-Optics
SEATTLE -- Larry Dalton runs short treks into the future. It’s a world of unlimited bandwidth, a place with steerable microwaves where aircraft and ships are all wired with fiber optic cable....
Raman Spectroscopy Opens the Earth’s Core
Researchers from the Carnegie Institution of Washington and Ecole Normale Supérieure de Lyon in France have announced the results of experiments that will enable geophysicists to better...
Readers Bridge the Net and Print Gap
A microelectromechanical scanning reader under development by Microvision Inc. of Bothell, Wash., promises to link print media to the Internet. The company has announced that it will ship samples of...
Silicon Crystal Is Cheap, Simple
TORONTO -- Researchers in Canada and Spain have overcome the obstacles to develop a three-dimensional photonic crystal that can be easily manufactured on a large scale at a low cost. Fabricated with...
Laser Spot Aims at Storage Market
MURRAY HILL, N.J. -- A relatively simple solution to the problem of reducing a laser’s spot size using near-field optics may lead to an optical storage system that could store as much as 500...
Sputtering Yields 3200-GHz Filter
Advanced Lighting Technologies Inc. of Cleveland has announced that its subsidiary Deposition Sciences Inc. of Santa Rosa, Calif., has produced a 3200-GHz optical bandpass filter using its reactive...
Strip Coating Makes the Grade
A study of the reformulated Opticlean strip coating, distributed by Dantronix Research and Technologies of Platteville, Wis., suggests that the product removes fresh surface contaminants from silicon...
light speed
Buyout Boosts Coreco’s Market Share
MONTREAL -- The crowded machine vision industry got only slightly less so in June when Coreco Inc. announced that it had bought Imaging Technology Inc. of Bedford, Mass., for $14.5 million in cash....
Forum Addresses Photonics Labor Shortage
Representatives from the Coalition for Photonics and Optics met in Washington with public policy-makers and human resource managers to discuss the labor shortage in the photonics industry. Of...
Good Times Ahead for Optical Interconnects
A report from ElectroniCast Corp. of San Mateo, Calif., predicts an explosion in the global market for internal optical interconnect components and subsystems through 2008. Components witnessed sales...
Growth Expected for Materials Processing
Optech Consulting of Bisingen, Germany, foresees continued double-digit growth in the global laser materials processing market. The company predicts that worldwide sales of laser processing machinery...
Growth Expected for Dispersion Compensators
A report released by ElectroniCast Corp. of San Mateo, Calif., predicts that the global consumption value of dispersion-compensator modules will grow from $36.6 million in 1999 to $435.5 million by...
Industrial Laser Shipments Up in 2000
The Laser Systems Product Group of the Association for Manufacturing Technology in McLean, Va., has reported that shipments of industrial lasers for North America and US export in the first quarter...
JDS Uniphase Courts Regulators to Win SDL
SAN JOSE, Calif. -- JDS Uniphase Corp.’s $41 billion play for rival optical telecommunications supplier and sometimes technical superior SDL Inc. would give the merged company about two-thirds...
Laser Supplier Supports Charity
The MedicAlert Foundation of London announced that it has received a charitable donation of £10,000 from YAG laser marker supplier Baasel Lasertech (UK) Ltd. of Daventry, UK. The contribution...
LEDs Shrink Displays
Microvision Inc. of Bothell, Wash., has completed the initial tests of its miniature retinal-scanning display. The device, which uses micromirrors to focus the output of three edge-emitting LEDs into...
Murnane Receives ’Genius Grant’
Margaret M. Murnane has been awarded a John D. and Catherine T. MacArthur Foundation fellowship, also known as a "genius grant." Murnane, a professor of physics at the University of Colorado in...
Nanogen Settles Patent Dispute
San Diego-based Nanogen Inc. announced that it has settled a complaint with Beckman Coulter Inc. of Fullerton, Calif., regarding the latter’s patent for optical and electrical methods of...
Photonics Not Lost in Space
LAUREL, Md. -- The "better" part of "faster, better, cheaper" as it applies to NASA’s mandate for low-cost space missions is better technology to send back ample information from those...
Presstek Creates Diode Unit
TUCSON, Ariz. -- Digital imaging company Presstek Inc. of Hudson, N.H., is solving a supply problem by becoming its own supplier. Presstek announced in June that it had formed Lasertel Inc., a...
Up, Up and Away
WASHINGTON -- Helium is so cheap and plentiful that it is used to fill Mickey Mouse balloons for children’s parties. That’s the finding, however obvious, of a report issued in May by the...
Accent on Applications
Micromirrors Enable Microprojectors
E-commerce notwithstanding, much of today’s work force is still mobile. Thousands of consultants, salespeople and trainers spend a substantial amount of time traveling from one client to another. The tools of the trade for these "road warriors" include a mobile phone, a laptop computer and, increasingly, a projector with which to deliver presentations. Obviously, the smaller and more...
Ringlight Remains Stable When Put on the Spot
Not too long ago, computer enthusiasts were predicting that all business communication would occur electronically and that printed documents would become obsolete. This vision didn’t seem to...
Software Models Electromagnetic Waves
Software programming is a tedious, thankless job. Bill Gates notwithstanding, it isn’t likely that the title "software developer" will become sexy any time soon. The most programmers can hope...
Presstime Bulletin
Boeing Plans Acquisition of SVS
Boeing Co. of Seattle has announced plans to purchase photonics manufacturer SVS Inc. of Albuquerque, N.M., following a series of partnerships between the companies. SVS would be renamed Boeing SVS...
CVI Opens New Manufacturing Facility
CVI Laser Corporation announced the ribbon cutting on August 26, 1999, for its $4 million manufacturing expansion. Founded in 1972 in Albuquerque, N.M., by Dr. Yu H. Hahn, CVI has grown from two...
Lambda Physik Teams with European Consortium to Develop Colored Laser Decorating of Plastics
Using its Diode Pumped Solid-State 1-kHz laser system, capable of emitting three wavelengths, Lambda Physik has built a highly flexible marking technology capable of marking various plastic...
Lucent Licenses Quantum Cascade Laser
Applied Optoelectronics Inc. of Sugar Land, Texas, has signed a licensing agreement under which it will produce and distribute the quantum cascade lasers developed by Lucent Technologies Inc. of...
Melles Griot Announces New Business Unit Director, Capital Equipment
Stephen Kidd, Ph.D, has been selected to take on the responsibilities of marketing and product management for the Melles Griot line of nanopositioning and machine vision products used for...
Melles Griot Welcomes Tricia Dunn, SPHR as Vice President of Human Resources
Tricia Dunn has been appointed to the position of Vice President of Human Resources at Melles Griot. She will be responsible for all aspects of the human resources function for the company including...
Contract Manufacturing
Melles Griot announces contract manufacturing capability for custom photonics modules. The range of capability includes optics, lasers, opto-mechanical hardware, electronics, positioning, and...
Newport Receives Precision Optics Orders
Irvine, Calif.-based Newport Corp. has received orders for its precision optics and optomechanical subassemblies from three capital equipment companies in the semiconductor industry. The equipment,...
Spectra-Physics and GSI Lumonics Sign Supply Agreement
Spectra-Physics Lasers of Mountain View, Calif., has signed an agreement with GSI Lumonics Advanced Manufacturing Systems of Wilmington, Mass., under which it will provide high-power, diode-pumped,...
Photon Tunneling Microscope Reveals Singularities
A team at the University of Twente in Enschede, the Netherlands, has developed a technique that may aid the design and analysis of photonic structures. Reporting in the July 10 issue of Physical...
Products
LARGE-AREA DETECTORS
A series of large-area quadrant PIN photodiodes for light beam positioning can be customized for OEM and military applications. Advanced Photonix Inc. says the large active area allows detection of greater beam movement and provides a wider field of view, while the low dark current and noise characteristics enhance the positional sensitivity. Packaging options include TO-5, TO-8 and TO-18 cans,...
Advanced Photonix
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SILICON PHOTODIODE
The S7516 Si PIN photodiode from Hamamatsu Corp. incorporates a preamplifier that is compatible with a wide bandwidth and a 3-mm-diameter active area, which make the device suitable for spatial light...
Hamamatsu Corporation
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FIBER AMPLIFIERS
BaySpec Inc. has introduced erbium-doped fiber amplifiers designed for OEM integration into applications that require high gain and a low noise figure. The Metro-AE modules operate on 5 VDC and meet...
BaySpec Inc.
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FIBER SWITCHES
Fiber optic switches are available from piezosystem jena GmbH for optical measurement, transmission technology and spectroscopy applications. The F-SM19 has one input channel and can be switched to...
piezosystem jena GmbH
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FO GYRO EVALUATION
KVH Industries Inc. has issued an evaluation kit that provides information on integrating its fiber optic gyros into systems for robotic vehicle guidance, pointing and stabilization of cameras, and...
KVH Industries Inc.
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INSPECTION SYSTEM
The O.C. White Co. offers the benchtop 3-D BGA Inspection System with three-chip camera technology. Its lens design provides 50x to 200x magnification and its metal-halide light source includes four...
O.C. White Co.
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MACHINE VISION OUTPUT
Basler Vision Technologies, Machine Vision Components, has developed FireWire technology for its machine vision cameras. The FireWire output complies with the IEEE 1394-1995 digital camera...
Basler AG
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PROGRESSIVE-SCAN CAMERA
The CV-M40 progressive-scan camera can capture 60 full progressive frames per second, producing 120 frames of readout per second with vertical binning. It has a 1/2-in. Hyper HAD charge-coupled...
JAI A/S
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CONNECTOR ADHESIVE
Fiber Optic Center Inc. offers Anaebond 202 for bonding glass, ceramics, metals and plastics. The adhesive is injected into the back of the connector before the fiber is inserted. It can cure in 2 to...
Fiber Optic Center Inc.
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DIFFUSE REFLECTANCE
A thermoplastic material developed by Labsphere Inc. maintains consistent reflectance in a variety of extreme conditions. Spectralon, available in optical, space and laser grades, provides 99%...
Labsphere Inc.
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WIRE SAW
Logitech Ltd. has unveiled a wire saw that slices samples up to 4 in. square. The AWS1, designed for use in photonics, semiconductor and geological applications, can slice gallium arsenide, silicon...
Logitech Ltd.
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3000-W LASER
A 3000-W laser from PRC Laser was developed for processing thin and thick materials and providing deep penetration welds. The CO2 fast-axial-flow device includes a Turboflow compressor and uses the...
PRC Laser Corp.
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INDUSTRIAL LASER
Coherent Inc., Laser Group, says its Avia 355-3000 can withstand continuous three-shift manufacturing. It provides more than 3 W of average power at 20 kHz and more than 2 W from 10 to 35 kHz. The...
Coherent Inc.
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LASER DIODE MODULE
The PMH laser module from Power Technology Inc. offers 100-MHz beam modulation, 2-ns rise-and-fall time and a propagation delay of 5 ns. It features a glass aspheric focusing or collimating lens, and...
Power Technology Inc.
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PICOSECOND DIODE LASER
The PDL 800 is suitable for time-resolved fluorescence spectroscopy, fiber-based distributed temperature measurement, wafer inspection systems, time-response characterization of optoelectronic...
PicoQuant GmbH
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COMPACT UV LAMPS
Spectronics Corp.'s high-intensity UV lamps for nondestructive testing feature 0.8-kg heads that measure 14 x 20 cm at their widest. The Spectroline C-100 and SSC-100 deliver 4000 µW/cm2 of UV...
Spectronics Corp., Spectroline
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HIGH-ENERGY LEDs
A line of 5-mm discrete LEDs from LEDtronics Inc. are water-clear T1-3/4 devices that incorporate optical-grade epoxy to produce bright illumination in direct sunlight. The Super Blue and Cool White...
LEDtronics Inc.
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DATA TRANSFER
Lumex Inc. has released the optolinks family of optoisolators and -couplers for data transfer in medical equipment, computer terminals and high-speed line receivers. The devices also are suitable for...
Lumex
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LASER DIODE DRIVER
The model 8800D from Analog Modules Inc. provides continuous-wave (CW) or pulsed output currents to drive laser diodes for pumping solid-state lasers. It can be configured with a 1.5- or 3.0-kW...
Analog Modules Inc.
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LOW-LIGHT LENSES
Lenses for low-light and intensified imaging applications have been released by Universe Kogaku (America) Inc. HI-speed lenses range from 25-mm f/0.95 to 75-mm f/1.3 and are designed to cover an...
Universe Kogaku (America) Inc.
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SAPPHIRE C-PLANE SUBSTRATES
Meller Optics Inc. fabricates custom single-crystal sapphire substrates with a smooth, polished surface finish suitable for epitaxy. The c-plane substrates are surface-oriented 2-in.-diameter wafers,...
Meller Optics Inc.
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STEERING OPTIC
Renishaw Inc.'s laser steering optic is designed to help users speed up linear, angular and straightness measurements for calibration of machine tools and coordinate measurement machines. The LS350...
Renishaw Inc.
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THIN-FILM POLARIZERS
Thin-film polarizers for use in the UVA range are available from Linos Photonics GmbH. They are optimized for the 340- to 440-nm range and have an extinction ratio better than 5000:1 at 355 nm for...
Qioptiq Photonics GmbH & Co. KG
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COATED WINDOWS
Quarter-wave window coatings from Edmund Industrial Optics reduce reflections and distortions in laser and electronic imaging applications. The units have a maximum peak-to-valley surface roughness...
Edmund Optics Inc.
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ALIGNMENT KIT
The Microgage 1000 Complete Kit operates over a range of 30 ft with 0.00002-in. precision. Pinpoint Laser Systems designed the system for machinery alignment, measuring runout, monitoring travel...
Pinpoint Laser Systems
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LASER POWER METER
Ophir Optronics Inc. has introduced a meter for measuring the power of static and scanned laser beams with up to 20 mW of average power. The BC20 scans up to 30,000 in./s with NIST-traceable accuracy...
MKS Ophir, Light & Measurement
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MEASURING DISPLACEMENT
The LaserMax DMI 500 is a displacement measuring interferometer for machine tool control and calibration, integrated circuit wafer processing and micropositioning. LaserMax Inc.'s device is capable...
LMD Power of Light Corp. dba LaserMaxDefense
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NIR SPECTROGRAPH
A near-infrared spectrograph from Control Development Inc. uses a 256-element thermoelectrically cooled InGaAs array with spectral response to 2.6 µm. It features f/3 optics, fiber optic input...
Control Development Inc.
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POLARIZATION EXTINCTION RATIOMETER
Santec Europe Ltd. offers a device for measuring polarization extinction ratio, optical power and polarization angle in real time. The PEM-310 simultaneously displays the measurements on the front...
Santec Corp.
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PRODUCTION SPECTROMETER
The GDA series of glow discharge spectrometers has been released by Spectro Analytical Instruments. The Spectruma GDA 150, suitable for the production environments of heat-treating and coating...
Spectro Analytical Instruments Inc.
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TRACKING SOFTWARE
SMXInsight4 software for coordinate measuring machines can be used to enhance the line of Laser Trackers from SMX Corp. The latest version includes a faster tracker compensation module and an...
FARO Technologies Inc.
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