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Photonics Spectra - June 2000
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Issue Library
Features
Small Block Cameras Tackle Tough Tasks
They go where humans can’t. Sometimes they go where no camera has gone before. Often they go where they can’t be seen. And what they see (and enable us to see) is revolutionizing the use of video cameras in the industrial, law enforcement, scientific, recreational and related environments. They are block video cameras -- so named because, in essence, they’re the blocklike guts...
A Model of Efficiency
Product advances based on classical illumination technology have primarily correlated with advances in lamp technologies: higher brightness, shorter arc and/ or higher pressure. But rethinking the...
To Manufacture More, Automate
The rapid expansion of dense wavelength division multiplexing telecommunications networks has created a worldwide demand for optoelectronic devices that is becoming increasingly more difficult to...
Small Optics Offer Big Correction
At the heart of many photonics projects is a microlens or an array of microlenses. Whether one is attempting to design and fabricate a laser diode corrector, optical fiber coupler, optical storage...
Managing Polarization Mode Dispersion
The increasing demand for bandwidth is driving most telecommunications operators toward the deployment of large-capacity transmission systems. Systems based on 10-Gb/s channel rates are being...
Integrating Spheres Create ’Artificial Sunshine’
When testing a camera system or a material’s weathering performance, researchers need a stable, uniform light source that closely mimics the conditions that the product will encounter in its...
Telecom Test Equipment Takes to the Outdoors
The ever-growing demand for more bandwidth is creating a breakneck pace in the development and implementation of new optical telecommunications technologies. And when we compare transport capacity...
Tech Pulse
3-D Crystals Created for the Visible Spectrum
OXFORD, UK -- One of the main challenges the photonics industry faces is the development of a three-dimensional crystal for the visible spectrum that will act on photons much as silicon devices act...
Bell Labs Extends 3-Tb/s Transmission
Bell Labs in Murray Hill, N.J., has announced successful long-distance transmission at triple-terabit speeds. The researchers displayed transmission of 82 wavelengths at 40 Gb/s over three 100-km...
Biocavity Laser Could Fill a Void
ALBUQUERQUE, N.M. -- Today’s surgeons are, in some ways, blind. Because they can’t see how deep cancer cells may have spread, during an operation they remove not only the tumor, but also...
Butterfly Aids Color Research
EXETER, UK --What do a TV set, a Georges-Pierre Seurat painting and an emerald swallowtail butterfly have in common? The cathode-ray tube, the pointillist painting and the insect all mix tiny points...
Chalmers Develops 49-dB Optical Parametric Amplifier
A team at Chalmers University of Technology in Göteborg, Sweden, has developed a fiber-based optical parametric amplifier for use in broadband telecommunications. The device produces an internal...
New Material Cools to -100 °C
EAST LANSING, Mich. -- Many applications await the development of efficient, inexpensive, low-temperature thermoelectric coolers. Current passing through a thermoelectric material carries away heat,...
Film Selectively Darkens Light
UNIVERSITY PARK, Pa. -- Intense light sources can cause damage to eyes and other optical sensors: a welding arc to a welder’s eyes or a robot’s vision system, a laser to a sensor, or even...
LEDs Benefit from Interface Engineering
A research group from the UK, Germany and Singapore describes the production of efficient polymer LEDs by molecular-scale interface engineering in the March 30 issue of Nature.A series of...
Through the Left-Handed Looking Glass
SAN DIEGO -- Researchers at the University of California have constructed a breakthrough material that exhibits novel photonic properties. It puts into practice what scientists had previously only...
A Little Hard Time Does Photochemistry Good
NEW ORLEANS -- A technique under development at Tulane University and the University of British Columbia in Vancouver, Canada, promises to advance asymmetric photochemistry. Although current...
Lucent Upgrades WaveStar to 320-Channel, 800-Gb/s Transmission
Lucent Technologies Inc. of Murray Hill, N.J., has announced an upgrade to its WaveStar OLS 400G dense wavelength division multiplexing system. The OLS 800G quadruples the number of available...
Optics Center Refines Confocal Grinding
The University of Rochester’s Center for Optics Manufacturing in New York is testing a prototype conformal optics grinder produced by Nanotechnology Systems of Keene, N.H. The device is the...
New Process Developed for Telescope Mirror Manufacture
HUNTSVILLE, Ala. -- Advanced Optical Systems Inc. has teamed with Oak Ridge National Laboratory in Tennessee to develop a promising alternative means to manufacture lightweight mirrors for telescopes...
Astronomers Discover Distant Quasar
Astronomers with the Sloan Digital Sky Survey at Apache Point Observatory in New Mexico have announced the discovery of the most remote object in the known universe, a quasar with a red shift of 5.8....
Researchers Find New Uses for an Old Semiconductor
ALBUQUERQUE, N.M. -- Scientists at Sandia National Laboratories are putting an old alloy to work in new applications. Indium gallium arsenide nitride was developed almost 10 years ago, but it had...
Physicists Play Ring-Around-the-Atom
NORMAL, Ill. -- Electrons racing about their atomic nuclei at nearly the speed of light bring new perspectives to the development of x-ray lasers. High-power, short-pulse lasers can coax electrons to...
Schott Turns Out Glass for Ignition Facility
Following months of cooperative research with Hoya Corp. of Fremont, Calif., Schott Glass Technologies Inc. of Duryea, Pa., has achieved continuous production of laser glass slabs for Lawrence...
Scientists Observe Motion of Individual Atoms
PASADENA, Calif. -- In a development that could have far-reaching ramifications for single-atom science, physicists have created an "atom-cavity microscope" that uses single photons from a laser beam...
SDL Tests Raman Amplifiers
Researchers from SDL Inc. of San Jose, Calif., and AT&T Labs-Research of Red Bank, N.J., have reported that their field tests show that distributed Raman amplification improves the performance of...
Small Particles Could Find Big Uses
URBANA, Ill. -- At the University of Illinois, a researcher may be on the way to something big by starting small. Physics professor Munir Nayfeh has developed a technique for creating nanoparticles...
Space-Based Laser Boosts Power
An April 24 test of the megawatt-class hydrogen-fluoride chemical laser known as Alpha increased the output of the device by approximately 25 percent and improved its beam characteristics. Alpha was...
Synchrotron Produces Femtosecond Pulses
A team at Lawrence Berkeley National Laboratory’s Advanced Light Source in Berkeley, Calif., reported in the March 24 issue of Science that it had produced 300-fs x-ray pulses with the...
Laser Tweezers Test Kramers’ Theory
EAST LANSING, Mich. -- Nearly 60 years after Hendrik A. Kramers described the thermally driven transitions of Brownian particles, researchers at Michigan State University have experimentally verified...
Computer Vision-Based System Gauges Fuel Levels
UNIVERSITY PARK, Pa. -- Most conventional fuel gauges rely on a sensor with low-voltage electrical leads that come in contact with the fuel, which some suspect have contributed to recent explosions...
light speed
Electronic Display Materials Push Ahead
Business Communications Co. Inc. of Norwalk, Conn., predicts that global shipments of electronic display materials will grow by 10.9 percent annually and reach $12.9 billion by 2004. Growth in flat panel display technologies in handheld and large-screen applications is expected to be responsible for nearly 55 percent of that total. Projections for the value of materials for flat panel displays...
Los Alamos Donates Equipment
Los Alamos National Laboratory in New Mexico will donate its excess labora-tory equipment to nonprofit organizations, colleges and universities under the US Department of Energy’s Laboratory...
Tantalum Basks in Telecom Spotlight
ARLINGTON, Va. -- It’s nice to be sought after -- especially when you’re named for the king of frustration and disappointment. An undistinguished No. 73 on the periodic table of elements,...
Surveillance Booms
Business Communications Co. Inc. of Norwalk, Conn., predicts that the visual surveillance market in the US will display an annual growth rate of 10.7 percent and reach $4.3 billion in 2004. The...
Calimetrics Licenses Near-Field Technology
Polaroid Corp. of Cambridge, Mass., has granted Calimetrics Inc. of Alameda, Calif., an exclusive license to its near-field embedded optics technology. Calimetrics plans to implement the technology...
Corning to Acquire Datacom Company
Corning Inc. of Corning, N.Y., has agreed to purchase the remaining equity in NZ Applied Technologies Corp. of Woburn, Mass., for up to $150 million in Corning common stock, contingent on the latter...
Free-Space Optical Network Planned
Lucent Technologies Inc. of Murray Hill, N.J., and TeraBeam Networks of Seattle have announced that they have agreed to jointly develop and deploy TeraBeam’s free-space optical system for...
Nakamura Orders GaN Platform
The University of California at Santa Barbara’s Shuji Nakamura, the inventor of the blue, green and white LED and the blue diode laser, has ordered a metallorganic chemical vapor deposition...
Newport Receives Orders Totaling $7 Million for Specialized Precision Optics Products
Newport Corporation has announced that it has received orders totaling $7 million from three major semiconductor capital equipment companies for high-precision optical products. The customers plan to...
Lucent: For Sale to Good Owner
MURRAY HILL, N.J. -- Lucent Technologies Inc. has announced plans to sell about a dozen of its 17 US manufacturing facilities to contract manufacturing partners. It will retain five chip and fiber...
Vision Suit Continues
US District Court Judge Philip Pro in Reno, Nev., denied three motions of the Lemelson Medical, Education and Research Foundation LP related to a lawsuit filed against it in September 1998 by Cognex...
Survey: Mergers Displace Business Leaders
ALEXANDRIA, Va. -- Chamber of commerce executives are generally upbeat folks, faithfully pitching their local economies. But in a recent national survey, 60 percent of the executives polled said that...
Trimedyne Insider Trading Proves Too Tempting
IRVINE, Calif. -- The events of one day in March 1996 proved just too tempting for two individuals. They would be accused of parlaying their insider knowledge of pending government approval for a...
Projectors Brighten Texas Instruments’ Future
Texas Instruments Inc. of Dallas has announced that first-quarter shipments of its Digital Light Processing subsystems were up more than 250 percent from the same period in 1999. It expects to double...
’Weird’ Science Grants Announced by Innovation Initiative
An initiative by the government, universities and scientific organizations in The Netherlands will give 130 young scientists the ability to pursue research according to their own discretion. The...
Accent on Applications
Hyperspectral Imaging Leads to New Art Form, Greener Lawns
England’s fields may soon stay green even when the grass is dead, thanks to hyperspectral imaging genetics -- and avant-garde art. For a decade, British artists Heather Ackroyd and Dan Harvey...
Plant-Monitoring Fluorometer Has Its Day in the Sun
Through the ages, plants -- and particularly crops -- have evolved to survive adverse conditions, not to be highly productive. Agricultural research, however, strives to improve both the stamina and...
Optical Sensor Bridges Gap for Robotic Welders
Two robotic welders at Vauxhall Motors Ltd. complete about 300 wheel arches a day on models such as the Astra. Before the robots' installation, production was slightly faster, but about 40 percent of...
Superdry Optics Stand up to Er:YAG Energy
Emitting at 2.94 µm, Er:YAG lasers offer some very promising solutions for a broad range of medical applications. Because of their wavelengths’ very high absorption by water, these lasers...
Presstime Bulletin
Consortium Advances Fiber-Based Local Area Networks
Fourteen Taiwanese networking manufacturers, representing approximately 25 percent of the global production of hardware for local area networks, have formed a consortium to promote the adoption of fiber-based solutions for local area networks. The consortium has adopted the VF-45 interconnect from 3M Telecom Systems Div. of Austin, Texas, as its standard and expects to ship products as early as...
Flir to Supply Cameras for Inspection
Flir Systems Inc. of Portland, Ore., has signed a $4.7 million deal to supply multispectral imaging camera systems to Iris Systems of Vancouver, British Columbia, Canada. Iris will use the cameras in...
JDS Uniphase Announces Plans to Acquire Casix
JDS Uniphase Corp. of Nepean, Ontario, Canada, has announced an agreement to purchase Casix Laser Inc. of Fuzhou, Fujian, China, which will operate as a wholly owned subsidiary. Other terms of the...
Nortel Consolidates Components Businesses
Nortel Networks Corp. of Brampton, Ontario, Canada, has formed High Performance Optical Components Solutions. The new unit consolidates Nortel’s optical components group with its design and...
Polaroid Sells Laser Business
Boston Laser Inc. of Norwood, Mass., has agreed to purchase the laser diode development and manufacturing business of Polaroid Corp. of Cambridge, Mass., in a cash and securities exchange. It will...
Products
PHOTOSENSOR MODULES
Hamamatsu Corp. has unveiled light sensor modules that incorporate a compact metal package photomultiplier tube and a built-in power supply. The H6779 and H6780 modules feature spectral responses between 185 and 880 nm, an anode pulse rise time of 0.78 ns, a sensitivity adjustable range of 1:104 and a radiant sensitivity between 17 and 40 µA/nW at 420 nm. Typical dark current ranges from...
Hamamatsu Corporation
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PHOTON COUNTER
Two digital photon counting systems from C&L Instruments connect to transistor-transistor-logic-output photomultiplier tube modules for performing low-light intensity measurements. The systems...
C & L Instruments Inc.
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QUADRANT PHOTODIODE
Pacific Silicon Sensor Inc. developed its quadrant silicon photodiode with a spectral response from 350 to 1000 nm. The PSS-QP50-6SD has a diameter of 7.8 mm and includes a 42-µm gap between...
First Sensor Inc.
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BROADBAND SOURCE
The EBS-4022 from MPB Technologies Inc. is a 22-dBm broadband source that is flattened within 1 dB over its 40-nm-wide C-band spectrum. It is suitable for replacing tightly packed distributed...
MPB Communications Inc.
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COLOR CCD
Basler Vision Technologies' L320C camera extends the company's series of line-scan CCD cameras into trilinear color. The sensor consists of three rows of 2098 pixels, each row with a red, green or...
Basler AG
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OPTICAL ADHESIVE
EP39-2 is a fast-curing optical adhesive for bonding to a variety of substrates such as glass, metals and plastics. Master Bond Inc. designed the transparent adhesive, sealant and coating to resist...
Master Bond Inc.
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TEMPORARY ADHESIVE
Summers Optical has developed a solvent-free temporary adhesive for precision optics. Lens Bond type DB-99 cures in 90 s under UV light at room temperature and can provide structural integrity during...
Summers Optical
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DC POWER AMPLIFIER
Model P0923A is a high-voltage power amplifier designed to provide precise control of output voltages ranging from 0 to ±2 kVDC. Developed by Trek Inc., it has an output current range of 0 to...
TREK Inc.
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PULSED UV-VIS CURING
Xenon Corp.'s CoolCureXL is a low-temperature UV/VIS curing system for OEM applications. It combines high-speed electronics with a mercury-free pulsed lamp for high-peak, broadband light pulse...
XENON Corporation
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LOW-SCATTER INFRARED LIGHT PIPES
Light pipes coated with electrochemically deposited gold are suitable for use in gas spectrometers, infrared temperature measurement instruments and lasers, and oxygen, carbon monoxide and carbon...
Epner Technology Inc.
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TEMPERATURE CONTROLLER
Wavelength Electronics Inc. has released the LFI-3751 temperature controller designed for sensitive applications. The device features a proportional integral derivative Autotune to calculate settings...
Wavelength Electronics Inc.
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DIODE LASER MODULES
Limo GmbH offers laser modules that operate at 976 and 980 nm. The HLU15F200-980 fiber-coupled module has an output of 15 W, and its 200-µm fiber has an NA of 0.22. It measures 79 x 25 x18 mm...
LIMO GmbH
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LASER STARTER KIT
A quantum cascade laser starter kit intended to give research engineers plug-and-play access to this technology is available from Alpes Lasers SA. For applications in optics, spectroscopy and...
Alpes Lasers SA
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LASER PROCESSING SYSTEM
The BluWave laser processing system is available from PhotoMachining Inc. with a 12 x 12-in. X-Y table, fixed beam delivery, off-axis camera alignment and Coherent Avia frequency-tripled laser. The...
PhotoMachining Inc.
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RING-BEAM DRILLING
The Pow-R-Ring laser beam delivery system from National Aperture Inc. can drill holes in metals and ceramics up to 0.10 in. thick with tolerances of less than ±0.001 in. The device uses laser...
National Aperture Inc.
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VIOLET DIODE LASER
The PDL 800-B violet diode laser has ultrashort pulses down to 50 ps at full width half maximum, with repetition rates from single shot to 40 MHz and peak power up to 400 mW. PicoQuant designed it...
PicoQuant GmbH
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DARK-FIELD ILLUMINATION
A system that can detect imperfections in clear and translucent objects has been released by Stocker & Yale Inc. The dark-field illumination system includes the company's fiber optic ringlight...
ProPhotonix Ltd.
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SOLID-STATE CHILLER
The T-501P solid-state recirculating chiller from ThermoTek Inc. features temperature control with ±0.1 °C stability in a 20-kg housing measuring 500 x 340 x 320 mm. It has 500 W of...
ThermoTek Inc.
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BALL LENSES
Tech Spec high-index ball lenses are made from LaSFN9 glass that has an index of refraction of 1.850. Edmund Industrial Optics designed the lenses to help increase the efficiency of coupling light...
Edmund Optics Inc.
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DWDM GRATING
Kaiser Optical Systems Inc.'s UltraSpec-C is an enabling component for high-spectral-resolution DWDM devices and analyzers. The Volume Phase Technology holographic transmission grating is recorded in...
Endress+Hauser Optical Analysis Inc.
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INTEGRATING SPHERES
Integrating spheres as large as 3 m in diameter are available for optical radiation measurement. Labsphere Inc. designed the spheres and sphere systems for laser power and lamp flux measurement,...
Labsphere Inc.
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OPTICS POLISHING
A polishing system from Meller Optics Inc. features Microlux alumina abrasive powders in regular and deagglomerated grades and in seven particle sizes, and as water-based calcined suspensions in...
Meller Optics Inc.
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QUARTZ LENSES
Quartz lenses for imaging in the ultraviolet have been released by Universe Kogaku (America) Inc. The 25-mm UV2528 will cover a 16-mm imager and has adjustable focus and a fixed f/2.8 aperture. The...
Universe Kogaku (America) Inc.
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MINI GUIDEWAY
Schneeberger Inc. has developed the Minirail two-row guideways with a ball-retainer design and guideway lengths of 360 mm for the 7-mm-wide model, 700 mm for the 9-mm-wide model and 950 mm for the...
Schneeberger Inc.
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POSITIONING SYSTEMS
Nanopositioning systems that offer up to 100 µm of closed-loop travel with subnanometer precision have been developed by Mad City Labs Inc. The through hole, which can be up to 4 in. in...
Mad City Labs Inc.
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UV DOSE MEASUREMENT
The Con-Trol-Cure Rad Check system from UV Process Supply Inc. can measure UV energy doses from curing systems that are inaccessible to conventional radiometers. Designed for web offset, flexo,...
UV Process Supply Inc.
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EDFA/DWDM TEST AND MEASUREMENT INSTRUMENT
ILX Lightwave Corp. offers the FTS-9200 high-density comb source for the test and measurement of erbium-doped fiber amplifiers and dense wavelength division multiplexers. It features up to 48...
Newport - ILX Lightwave, Photonics
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HIGH-FREQUENCY SWITCH
National Instruments Corp. has introduced quad 4:1 switches that route signals for high-frequency test-and-measurement products such as digitizers, oscilloscopes and waveform generators. The...
National Instruments Corp.
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ION/PHOTON COUNTING
Fast ComTec GmbH's P7888 is designed to count ions and photons at burst rates up to 1 billion per second. With two inputs, the device has 1-ns time resolution with counting rate capabilities of 1...
Fast ComTec GmbH
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