Register
Sign In
Subscribe
Advertise
Publications
Photonics Spectra
BioPhotonics
Vision Spectra
Photonics Showcase
Photonics Buyers' Guide
Photonics Handbook
Photonics Dictionary
Newsletters
Bookstore
News & Features
Latest News
Latest Products
Features
All Things Photonics Podcast
By Technology
Lasers & Light Sources
Optics
Materials & Coatings
Imaging
Sensors & Detectors
Test & Measurement
Integrated Photonics
Spectroscopy
Biophotonics
Machine Vision
Marketplace
Supplier Search
Product Search
Career Center
Webinars & Events
Webinars
Photonics Media Virtual Events
Industry Events Calendar
Resources
White Papers
Videos
Contribute an Article
Suggest a Webinar
Submit a Press Release
Subscribe
Advertise
Become a Member
Publications
Photonics Spectra
BioPhotonics
Vision Spectra
Photonics Showcase
Photonics Buyers' Guide
Photonics Handbook
Photonics Dictionary
Newsletters
Bookstore
News & Features
Latest News
Latest Products
Features
All Things Photonics Podcast
By Technology
Lasers & Light Sources
Optics
Materials & Coatings
Imaging
Sensors & Detectors
Test & Measurement
Integrated Photonics
Spectroscopy
Biophotonics
Machine Vision
Marketplace
Supplier Search
Product Search
Career Center
Webinars & Events
Webinars
Photonics Media Virtual Events
Industry Events Calendar
Resources
White Papers
Videos
Contribute an Article
Suggest a Webinar
Submit a Press Release
Subscribe
Advertise
Become a Member
Register
Sign In
Photonics Spectra - May 2002
Subscribe
Advertise
Issue Library
Features
Not All Multiplexing Technologies Are on the Same Wavelength
Until recently, the development of dense wavelength division multiplexing (DWDM) technology has focused solely on scaling to higher channel counts, following pundits’ predictions that future high-bandwidth applications would create a bandwidth shortage. This shortage has proved largely illusory so far, and DWDM development has had to adapt to meet additional demands.One example is...
Microdisplays, Macro-Impact
Despite their name, microdisplays are making a big impact, and it’s getting bigger. The size of a computer chip, a microdisplay employs photonics technology to create a magnified image large...
Diode-Pumped Solid-State Lasers
They slice, they dice, they weld. Diode-pumped solid-state lasers offer an ever-increasing degree of processing flexibility and beam quality. These factors alone continue to strengthen their position...
Modeling Telecommunications Components
The term "crosstalk" describes the phenomenon of power leaking from one channel of a wavelength division multiplexing (WDM) system into a neighboring one. One of the most important design issues for...
Broadband Spectrophotometry
Designing devices that incorporate ultrathin films is an important means of enhancing yields. However, characterizing ultrathin films can be extremely challenging for mainstream metrology tools such...
Tech Pulse
Passive Mode-Locking Is Achieved in Ytterbium Laser
Using an ion-implanted semiconductor saturable absorber mirror researchers at Australian National University in Canberra and Macquarie University in Sydney, Australia, have achieved passive mode-locking in a diode-pumped, self-frequency-doubling Yb:YAB laser. As reported in the March 15 issue of Optics Letters, the locking resulted in transform-limited IR pulses with widths of 198 fs to 1.4 ps...
Widely Tunable Terahertz Generator Developed
Researchers at Riken's Photo Dynamics Research Center in Sendai, Japan, have developed a 0.7- to 2.4-THz, 125- to 430-µm terahertz wave parametric generator (right) that is injection-seeded by an...
Two-Photon Absorption Enables Microfabrication
Two-photon absorption tech-niques that have proved beneficial to biological imaging are spilling over into the industrial realm. Researchers at Osaka University in Suita, Japan, are using two-photon...
Laser Ultrasound Tests Train Tracks
A train accident occurs in the US every 90 minutes, many of which are attributable to undetected cracks in the tracks. Ultrasound techniques are used to test for cracks, but they are limited in...
Nanosecond Pulses Improve Laser Nitriding
Nanosecond excimer laser pulses yield better results than femtosecond pulses when laser nitriding iron, according to a paper published in the Feb. 11 issue of Applied Physics Letters. Laser...
Mid-IR VCSEL Operates at Room Temperature
An optically pumped vertical-cavity surface-emitting laser (VCSEL) that emits in the mid-IR at above room temperature in pulsed mode could have far-reaching implications for chemical analysis and...
Team Moves Bose-Einstein Condensates 44 cm
A team from Massachusetts Institute of Technology in Cambridge has moved gaseous Bose-Einstein condensates as far as 44 cm using an optical tweezer method. As described in the Jan. 14 issue of...
Simpler Technique Measures Group Velocity Dispersion
Group velocity dispersion in optical fiber degrades the quality of transmitted data and limits the data rate. If the dispersion in the system is known, it can be compensated, but measuring it takes...
Laser Emits Broadband Radiation
Think laser, and odds are that you'll think monochromaticity. A quantum cascade laser developed at Lucent Technologies Inc.'s Bell Labs in Murray Hill, N.J., however, threatens to overturn this...
Coastal Imager Provides Linear Results
Tests performed by the Naval Research Laboratory in Washington have found that the Ocean Portable Hyperspectral Imager for Low-Light Spectroscopy produces highly linear spectral and radiometric...
Doppler Lidar Maps High-Altitude Winds
According to Bob Dylan, the answer is blowing in the wind. That's certainly true for weather prediction, as winds throughout the atmosphere steer weather patterns and are an essential parameter for...
Photodetector Developed with 1.5-µm Sensitivity
Silicon-based photodetectors may benefit high-speed optical communications technologies because of their potentially simple integration. But developing a cost-effective, efficient detector that...
CARS Limits Background Interference
Coherent anti-Stokes Raman scattering (CARS) microscopy allows viewing of live biological samples -- without photoluminescent labeling or staining -- by using three laser beams to induce...
Microscopy Techniques Image Organic LED Bubble Formation
Scientists from the Institute of Materials Research and Engineering in Singapore have examined the formation of dark spots in organic LEDs caused by dome-shaped bubbles at the interface between an...
InAlGaN Quantum Wells Boost UV Emission
Using InAlGaN-based multiple quantum wells fabricated on SiC, Japanese researchers from Riken in Saitama, Waseda University in Tokyo and Tokyo Institute of Technology in Yokohama have produced...
Lasers Induce Transformation of Benzene
Multiple 70-mW continuous-wave laser sources have been used by researchers from the Università di Firenze and the European Laboratory for Nonlinear Spectroscopy and INFM, both in Florence, Italy, to...
Raman Imaging Probes Ancient Rocks
The microscopic structures discovered in the 3.5 billion-year-old rocks of Western Australia known as the Apex cherts, are among the earliest known signs of life on Earth. Or are they? The cherts...
light speed
Collaboration: Fiber Networks' New Link
Adversity, it appears, breeds fraternity. Since the beginning of the year, the once-cutthroat optical networking industry has undergone an epidemic of brotherly love and cooperation in the form of...
Can Calcium Fluoride Handle New Demand?
Although the demand for semiconductor lithography equipment decreased in the past year, system manufacturers struggled to advance their technology closer to the 193-nm and 157-nm nodes. For calcium...
Accent on Applications
Profilometer Inspects Microlenses
The absence of an accepted standard for microlens wafer formats, which may include microlenses ranging from microns to several millimeters in size, has resulted in a demand for profilometers that can satisfy the metrology requirements of characterizing the radius of curvature and the deviation from sphere. They must also accommodate aberrations of microlenses embedded on a variety of wafer...
Machine Vision Gives Meat a Safety Inspection
Following the epidemic of mad cow disease that struck the UK and the recent outbreaks of foot-and-mouth disease in Europe, the meatpacking industry is looking for improved methods of screening and...
Spectroscopy Technique Detects Carbon
Concern about climatic changes has researchers from Los Alamos National Laboratory examining ways to sequester carbon in the ecosystem. There are basically two ways of dealing with the problem:...
Presstime Bulletin
'Microgear' Has Low Threshold, High Q
At Yokohama National University in Hodogaya, Japan, researchers have demonstrated that the application of a Bragg grating to a microdisc laser enables the device to operate with a threshold of 17 µW...
New CCD Camera Utilizes Revolutionary Signal-Multiplication Process
Roper Scientific, Inc. has announced the release of the Photometrics CascadeO digital imaging system for low-light applications. The new Cascade:650 high-performance CCD camera features...
Laser Trap Produces Degenerate Fermi Gas
Although Bose-Einstein condensates have not exactly become commonplace, intensive research over the last decade has greatly expanded scientists' understanding of this state of matter. Now researchers...
Digital Video Captures Images of 'Blue Jet'
Meteorologists have long speculated about the existence of electrical discharges between the tops of thunderclouds and the upper atmosphere. Now a team from Pennsylvania State University in...
Nanocrystal Laser Emits Blue
Researchers at the University of Michigan in Ann Arbor have reported continuous-wave 404.1-, 408.1- and 409.6-nm laser emission at room temperature from an electrically pumped nanocrystalline powder...
Bell Labs Displays 4000-km, 2.56-Tb Transmission
Bell Labs scientists in Holmdel and Murray Hill, both in New Jersey, have transmitted 64 40-Gb/s channels over 4000 km of fiber without regeneration. They reported the work in a postdeadline session...
Products
AlN SUBSTRATES
Ferrotec (USA) Corp. offers aluminum nitride substrates as an option on all of its thermoelectric modules. The higher thermal conductivity that is delivered by AlN, compared with the more common Al2O3, enables an increased temperature differential across the module and, thus, a greater heat-pumping capacity. Its lower coefficient of thermal expansion reduces thermal stresses during operation,...
Ferrotec (USA) Corp.
Request info >
FIBER OPTIC SENSOR
Automatic Timing and Controls (ATC) has announced an addition to its fiber optic sensor family. Designed for small-object detection at long distances, the 7087 is a fiber optic amplifier with a...
Automatic Timing & Controls
Request info >
OPTICAL FIBERS
INO says its aluminum-coated optical fibers prevent outgassing and reduce the amount of damage to fibers used in harsh environments. The fibers are manufactured with high tensile strength for use at...
INO
Request info >
X-RAY IMAGING
The C7921 3-in. flat panel sensor has 50 x 50-µm pixels and a CsI flipped scintillator plate for producing x-ray images in real time. This sensor from Hamamatsu Corp. provides 1056 x 1056-pixel...
Hamamatsu Corporation
Request info >
ULTRACOMPACT CAMERA
The XC-555 color video camera from Sony Electronics offers 768 x 494 effective pixels with a horizontal resolution of 470 TV lines and a signal-to-noise ratio of 48 dB. This interline transfer CCD...
Sony Electronics Inc., Visual Imaging Products Group
Request info >
MICROSCOPE STAGE
Prior Scientific offers a motorized stage for use with Nikon Instruments' TE2000 microscope. The stage is suitable for use with various types of specimens and offers repeatability, submicron...
Prior Scientific Inc.
Request info >
INDUSTRIAL IMAGING
The VC 2028 smart camera from Vision Components GmbH is a complete image processing system with a computational power of 1200 MIPS. The camera, which is designed for industrial applications, has...
Vision Components GmbH
Request info >
FRAME GRABBER
A Camera Link frame grabber that simultaneously acquires images from two line-scan or area-scan digital cameras is available from Euresys sa. The EureCard GrabLink Expert has 16 MB of onboard memory...
Euresys SA
Request info >
CONFOCAL IMAGING
Nikon Instruments Inc. is offering a confocal imaging attachment for use with the Eclipse L200 series microscopes. The confocal module provides two modes: one with larger pinholes for brightness and...
Nikon Instruments Inc.
Request info >
MACHINE VISION CAMERAS
Industrial Vision Systems Ltd. has announced a line of cameras that can be used with NeuroCheck frame grabbers in machine vision applications. The NeuroCheck cameras include the V10 monochrome,...
Industrial Vision Systems Ltd.
Request info >
IMAGING BOARDS
Foresight Imaging has introduced frame grabber and video streamer imaging boards suitable for such applications as military imaging, radar displays and monitor/display testing. The I-RGB 165 and...
Foresight Imaging, TIMS Medical
Request info >
TELECOM SOLDERING
Coherent Inc.'s Laser Processing Center launches a soldering technique that uses high-power diode lasers to solder gold-tin telecommunications fibers to gold-plated substrates. The system's engine is...
Coherent Inc.
Request info >
PHOTON COUNTING
Version 4.0 of the driver dynamic link library (DLL) for the TimeHarp time-correlated single-photon-counting PC board offered by PicoQuant GmbH allows the implementation of custom measurement...
PicoQuant GmbH
Request info >
LOCK-IN AMPLIFIERS
Femto Messtechnik GmbH has announced its LIA-MV-200 series of compact lock-in amplifiers, suitable for such applications as spectroscopy and luminescence, fluorescence, phosphorescence and...
Femto Messtechnik GmbH
Request info >
PUMP LASER DIODE
Anritsu Co.'s AF4A709 laser diode module operates at 1480 nm and is designed for use with high-power erbium-doped fiber amplifiers and multipump combinations for Raman amplification. The company says...
Anritsu Co.
Request info >
DIODE LASER
LightStone, a high-power diode laser based on the industry-standard macrochannel-cooled platform, has been launched by Coherent Inc.'s Semiconductor Div. It provides more than 50% power conversion...
Coherent Inc.
Request info >
WAFER POLISHING
Plan Optik GmbH has developed structuring and polishing methods for glass and fused silica wafers. The ultrasonic high-speed drilling method can be used for prototypes and for high-volume production....
Plan Optik AG
Request info >
ASPHERIC MIRRORS
Customized aspheric mirrors for use in beam expanders and telescopes are available from Space Optics Research Labs (SORL). Designed for applications with a narrow field of view, the aspheric mirrors...
SORL/Space Optics Research Labs LLC
Request info >
DIFFRACTION GRATINGS
A line of diffraction gratings designed for use in multiplexers, demultiplexers, optical spectrum analyzers and tunable lasers has been introduced by StockerYale Inc. The company says the gratings...
ProPhotonix Ltd.
Request info >
OPTICAL COATING
SwissOptic AG has announced a coating process that can be applied to optical interference filters. The application can be repeated to define multiple areas of different filters on one substrate...
SwissOptic AG
Request info >
OPTICAL ANALYSIS
The OPM512 optical performance monitor from Ocean Optics Inc. measures the wavelength, amplitude and signal-to-noise ratio of multiple laser lines for C- and L-band analyses. This 512-element...
Ocean Optics - Part of Ocean Insight
Request info >
POSITIONING STAGE
The LC-9.5 from Del-Tron Precision Inc. is an automated positioning stage and motor that can fit into a 10 x 40 x 10-mm envelope. It provides a straight-line accuracy of 0.0005 in. per inch of travel...
Del-Tron Precision Inc.
Request info >
OBJECTIVE POSITIONING
A micro-objective positioning system designed for adjusting microscope objectives has been announced by piezosystem jena GmbH. The MIPOS 4 offers maximum motion in the Z-axis of 330 µm in an...
piezosystem jena GmbH
Request info >
MOTION CONTROL
A motion control module for use with Measurement Studio software is available from National Instruments. The module offers interactive task windows for point-and-click programming of a series of...
National Instruments Corp.
Request info >
VIBRATION ISOLATION MODULE
Designed for Gimbal Piston air vibration isolation tables, the Q-Damp module from Technical Manufacturing Corp. is suitable for use in electrophysiology research, metrology devices, atomic force...
TMC
Request info >
MOTION CONTROL
A family of closed-loop motorized stages for increased efficiency in manufacturing applications has been introduced by New Focus Inc. These movable platforms offer accurate, high-resolution motion...
Newport - New Focus
Request info >
FIBER OPTIC TESTING
A scalable test platform for fiber optic manufacturing has been launched by Exfo Electro-Optical Engineering Inc. The IQS-500 intelligent test system can run up to 100 test modules with one...
EXFO Inc.
Request info >
Latest News
Exail Signs LLNL Contract, Partners with Eelume
Apr 26, 2024
Menlo Moves U.S. HQ: Week in Brief: 4/26/2024
Apr 26, 2024
Optofluidics Platform Keys Label-, Amplification-Free Rapid Diagnostic Tool
Apr 25, 2024
DUV Lasers Made with Nonlinear Crystals Enhance Lithography Performance
Apr 25, 2024
Teledyne e2v, Airy3D Collaborate on 3D Vision Solutions
Apr 24, 2024
One-Step Hologram Generation Speeds 3D Display Creation
Apr 24, 2024
Innovation Award Winners for Laser Technology Honored in Aachen
Apr 23, 2024
Intech 2024: AI Arrives on the Shop Floor
Apr 22, 2024
Imageomics Applies AI and Vision Advancements to Biological Questions
Apr 22, 2024
Photonic Chip Enables 160 TOPS/W Artificial General Intelligence
Apr 22, 2024
Latest Products
Robotic Guidance Vision Solution
Teledyne FLIR Integrated Imaging Solutions
Ultraviolet Camera
XIMEA GmbH
100W LED Pattern Projectors
Opto Engineering S.p.A.
AI Imaging Video Processor
Teledyne FLIR
Optical CMM 3D Scanners
Creaform Inc.
Wireless 3D Scanner
Scantech (Hangzhou) Co. Ltd.
Imaging Colorimeter
Radiant Vision Systems, Test & Measurement
OSFP Transceiver
Approved Networks
12MP Polarization Camera
Alkeria srl
3D Lidar Solutions
Quanergy Solutions Inc.
Explore Our Content
News
Features
Latest Products
Webinars
White Papers
All Things Photonics Podcast
Videos
Our Summits & Conferences
Industry Events
Bookstore
Join Our Community
Subscribe
Advertise
Become a member
Sign in
Contribute a Feature
Suggest a Webinar
Submit a Press Release
Mobile Apps
About Us
Our Company
Our Publications
Contact Us
Career Opportunities
Teddi C. Laurin Scholarship
Terms & Conditions
Privacy Policy
California Consumer Privacy Act (CCPA)
©2024 Photonics Media
100 West St.
Pittsfield, MA, 01201 USA
[email protected]
We use cookies to improve user experience and analyze our website traffic as stated in our
Privacy Policy
. By using this website, you agree to the use of
cookies
unless you have disabled them.