Features | Photonics Spectra

Features

Many scientific, medical and industrial imaging applications rely on camera systems that contain high-performance charge-coupled device sensors (CCDs). These applications require sensors that provide high signal levels and very low noise. This capability allows users to acquire images more quickly or identify features that would otherwise not be clearly discernable. For example, amateur astronomers use very long exposures with filters, especially in the blue, to achieve correct balance for a...

Photonics Spectra, February 1999

Laser Chillers:

Some like it hot. Even some lasers don't mind the heat as much as others. But the laser user that disregards thermal management altogether is asking for trouble. Laser users might not put a whole lot of thought into cooling their systems, relying on...

Photonics Spectra, February 1999

Speed Demons: Is 'Faster' Better and Cheaper?

If you need to produce X amount of work, you have two options: Hire a roomful of average workers to do pieces of the work, or hire a few fast, efficient people to do the same work. The fast workers will, of course, demand higher salaries; but the...

Photonics Spectra, February 1999

Telecommunication Systems Minimize Laser Risks

The rapid development and implementation of optical telecommunication technology have significantly aided the growth of Information Technology in the 1990s. Ready access to the Internet and the decreasing cost of telephone calls, both nationally and...

Photonics Spectra, February 1999

Wavelength Lockers Keep Lasers in Line

Dense wavelength division multiplexing (WDM) transmission systems have taken on a level of sophistication never before seen in the telecom industry. Wavelength spacings of 100 GHz (0.8 nm) and 50 GHz (0.4 nm) are challenging system manufacturers to...

Photonics Spectra, February 1999

Calibration Technology:

The decreases in channel spacing for dense wavelength division multiplexing telecommunications systems is driving advances in calibration and measurement technology because current technologies often come up short when faced with measuring the high...

Photonics Spectra, January 1999

Diode and Fiber Lasers Penetrate Materials Processing and Graphic Arts

During 1999 diode lasers and fiber lasers will continue their trend toward improved performance and lower cost, resulting in the further penetration of these sources into material processing and graphic arts applications.

Photonics Spectra, January 1999

Diode-Pumped Solid-State Lasers Continue Expansion into Industrial Applications

Technological development has created distinct market segments for flashlamp-pumped, laser diode end-pumped and laser diode side-pumped solid-state lasers. We foresee continued growth in all these product areas, as long as end users clearly...

Photonics Spectra, January 1999

F2 Lasers:

Excimer lasers working at 308, 248 and 193Ynm are well-established tools for high-precision micromachining. However, some new applications are demanding even higher resolution or higher photon energies. One solution that keeps them in the optical...

Photonics Spectra, January 1999

IEEE-1394 Hooks Cameras Straight to PCs

1999 will be the breakthrough year for IEEE-1394 as recently introduced products find applications across a wide variety of imaging environments. IEEE-1394 provides a universal solution for connecting computer processors, peripherals and other...

Photonics Spectra, January 1999

Image Quality:

An overwhelming majority of image quality discussions center on resolution. The term "resolution" has been in use so long that it is thought to be something fundamental that uniquely determines system performance. Subconsciously, we think that a...

Photonics Spectra, January 1999

Innovations in Optical Scanning Probe Microscopy

The combination of optical and scanning probe microscopy offered by near-field scanning optical microscopes allows researchers to image the light response from small optically active surfaces such as gallium nitride structures, quantum dots, laser...

Photonics Spectra, January 1999

Integrated Micro-optics and Digital Optics Answer Telecom Demands

The telecommunications revolution is dramatically impacting the entire photonics industry. The need for higher bandwidth is requiring entirely new categories of photonic devices ranging from wavelength division multiplexing (WDM) devices to optical...

Photonics Spectra, January 1999

Optical Coatings with Amorphous Character Enable New Products

Can the optical coatings industry keep pace with the designer's continual need for better coatings? The answer, so far, is still yes. Many optical products that have entered the market in the past few years are possible only because of recent...

Photonics Spectra, January 1999

Optical Fiber Meets the Growing Telecommunications Demand

The public's voracious appetite for email and the Internet is fueling an explosion in the demand for information capacity over the backbone optical transmission network. Data traffic that 10 years ago was approximately 5 percent of total bandwidth...

Photonics Spectra, January 1999

Photonics Commercialization Efforts Stall at the Border

As photonics manufacturers transfer their once-military technologies into global industrial and medical markets, they face a bevy of sometimes confusing -- and potentially expensive -- export restrictions. In the days of Cold War tensions, the...

Photonics Spectra, January 1999

Sapphire Optical Fibers:

Improvements in sapphire optical fiber has aided the expansion of the Er:YAG laser in medical applications, such as dentistry. The fiber's rugged characteristics, such as its high melting point, also make it useful for sensor applications in hostile...

Photonics Spectra, January 1999

Smart Cameras Keep Their Brains on One Chip

Just as human eyes capture images and the brain recognizes and processes the information, a camera and computer system together can provide artificial intelligence. The latest developments have opened up the potential of significant progress towards...

Photonics Spectra, January 1999

Telecommunications Needs Drive Laser Improvements

This year, dense wavelength division multiplexed (DWDM) systems will expand from typical networks of 16 2.5-Gb/s channels to those with 80 or more 2.5-Gb/s channels, or up 40 10-Gb/s channels. This expansion will drive an increase in laser power for...

Photonics Spectra, January 1999

Thin-Film Coating Applications Heat Up

Optical coatings are one means of controlling heat in lighting applications such as film projectors and microscope illumination systems. Unfortunately, suppliers of multilayer dielectric coatings have primarily emphasized spectral performance,...

Photonics Spectra, January 1999

Tunable Diode Lasers Stand Up to Research and Commercial Applications

Tunable external-cavity diode lasers have become more reliable since their introduction five years ago. Now, more demanding telecommunications, spectroscopy and metrology applications are driving improvements in specifications for the next...

Photonics Spectra, January 1999

Tunable Filters Move to the Mainstream

Our society feeds on ever increasing volumes of data and on the compact, cogent presentation of this information, usually in the form of still or video images. Tunable filters are increasingly viable candidates for use in the collection,...

Photonics Spectra, January 1999

Chip Makers Weigh Benefits and Costs of Laser Marking Systems

In the fledgling days of the semiconductor industry, chip makers encoded serial numbers and dates on integrated circuit packages using conventional pad printed or ink-jet techniques. These methods offered users a high-contrast mark at a relatively...

Photonics Spectra, December 1998

Image Is Everything

In choosing image sensors, charge-coupled devices (CCDs) have long been the benchmark for image quality, offering significantly higher resolution than their competitors. But manufacturers are making great strides with complementary metal oxide...

Photonics Spectra, December 1998

Machine Vision Offers User-Friendly Error Detection

As semiconductors continue to become more complex, and manufacturers look for ways to improve their processes, machine vision is creeping into more places in the production chain. Acting as the watchful eyes of precision processes, vision systems...

Photonics Spectra, December 1998

<
1
2
3
...
107
108
109
110
111
...
115
116
117
>

(2,924 results found)

November 2024 Subscribe Advertise
Issue Library

Excelitas Technologies Corp. - X-Cite Vitae HP 11/24