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Lasers News
Fiber-Free Laser Communications Soar to 'Unheard of' Heights
Feb 1, 1997 — When telecommunications companies first looked for solutions to the overcrowded world of wired, electronic communication, coherent light and fiber optics were there. Fiber optics brought high-bandwidth communications without the electromagnetic interference common to coaxial and twisted pair cables. Now, fiber optic communications stand on the brink of yet another physical evolution -- keeping the laser and dumping the fiber.Recent advances in laser diode output power and silicon avalanche...
High-Power Diode Lasers Earn a New Image
Feb 1, 1997 — The growth and development of continuous-wave high-power diode lasers in the last few years has been phenomenal, enabling many advances in a wide range of applications. Diodes’ efficiency, compactness and cost-effectiveness make them an excellent...
Laser Gyro To Monitor Rotation of the Earth
Feb 1, 1997 — OBERKOCHEN, Germany -- Carl Zeiss has built what it calls the world's largest ring-laser gyro. Designed for measuring the Earth's rotation, the device will be installed in a subterranean cave on the Banks Peninsula in New Zealand early this year....
Quantum Dot Lasers Emerge from Semiconductor Rejects
Feb 1, 1997 — OTTAWA -- With an eye toward more powerful and smaller diode lasers, researchers at the National Research Council of Canada in Ottawa recently turned something semiconductor manufacturers consider undesirable into quantum dot lasers capable of...
Laser Fusion: An Old Dream Nears Realization
Jan 1, 1997 — When completed in 2002, the National Ignition Facility will culminate more than a decade of research on laser ignition: the controlled implosion of a small, hydrogen-isotope-filled target by laser beams of sufficient energy and quality to create...
Microlasers Can Anticipate Expanding Market
Jan 1, 1997 — The air-cooled argon-ion laser remains the most widely used source OEM applications requiring blue or green light. However, its shortcomings in efficiency, size, operating life and cost have inhibited the growth and development of applications....
PC-Based Laser Analyzers: New Uses Require Improved Devices
Jan 1, 1997 — Over the past few years the beam-profile quality of lasers has risen dramatically. Nevertheless, competitive pressures and demanding applications require even higher beam quality and are pushing the capabilities of many lasers. The only way to...
Russian Laser at Duke University Pumps out UV, Gamma Rays
Jan 1, 1997 — DURHAM, N.C. -- After settling in at Duke University, the Russian free-electron laser (FEL), has been brought to life emitting UV beams. The OK4 optical klystron FEL, developed at the Budker Institute of Nuclear Physics in Novosibirsk, Russia, was...
Boeing Wins $1.1 Billion Contract to Build Laser-Armed Warplane
Dec 1, 1996 — The US Air Force awarded a $1.1 billion contract to Boeing Defense Space Group to manufacture a prototype laser-armed warplane that would target enemy ballistic missiles. The plane, a modified 747 freighter, will carry a weapons-class laser that can...
Candela Medical Laser Systems Approved for Use in Japan
Dec 1, 1996 — Japan's Ministry of Health has approved two laser systems developed by Candela Corp. of Wayland, Mass., for the treatment of skin lesions. The devices, the AlexLAZR and the PLTL Pigmented Lesion/TATULAZR, use the company's alexandrite laser...
Coherent Ships Glaucoma-Treating Lasers Overseas
Dec 1, 1996 — Coherent Inc. of Santa Clara, Calif., announced that it will begin shipment outside the US of a medical laser used in primary open-angle glaucoma treatment. The company designed its Selecta 7000 specifically to perform selective laser...
Diode-Pumped Solid-State Lasers Find Their Place in the Lab
Dec 1, 1996 — The $100 million-plus annual scientific laser market continues to be a prime area of opportunity and focus despite limited research and development expenditures in recent years. Historically dominated by gas, lamp-pumped solid-state and dye lasers,...
Holographic Interferometry Helps Make Beautiful Music
Dec 1, 1996 — This is the time of year when one hears the pealing of holiday bells. We take the sounds for granted, but how do bell makers know that their musical instruments are producing the best possible sound? One manufacturer teamed up with Northern Illinois...
IBM Laser Scientist-Sleuths Solve an Old Astronomy Mystery
Dec 1, 1996 — YORKTOWN HEIGHTS, N.Y. -- Two IBM scientists, calling on their years of expertise in lasers, believe they have solved the missing starlight mystery -- a.k.a. the diffuse interstellar bands, or DIBs. Astronomers have long known that light from...
Laser Advances Spark Ultrafast Studies
Dec 1, 1996 — Advances in solid-state short-pulse laser oscillators, amplifiers and ultrafast optics have sparked an explosion in the number of studies of ultrafast phenomena. These experiments include direct control of chemical reactions, direct observations of...
Laser Chemistry Moves Toward Smaller and Faster Probes
Dec 1, 1996 — Molecular-level studies examine the effect of individual molecules on the properties of chemistry and materials. Recent progress in such studies has relied on some new laser techniques: Ultrafast lasers have recently reduced the time scale to break...
Laser Firm Gets University License for Marketing Al-Free Laser Diodes
Dec 1, 1996 — EVANSTON, Ill. -- Northwestern University has granted an exclusive license to Semiconductor Laser International Corp. (SLI) of Endicott, N.Y., to develop, manufacture, market and sell aluminum-free high-power semiconductor lasers worldwide for...
Lasers Control Molecular Motion
Dec 1, 1996 — In quantum mechanics, interest has turned toward controlling, rather than explaining, atomic, molecular and electronic processes. The technology of coherent control employs light-induced interference to affect the dynamics of matter and assist in...
Lasers Offer Coherent Control of Material Behavior
Dec 1, 1996 — The goals of laser control in chemistry include manipulation of collective and molecular properties. Femtosecond lasers have already helped study crystal lattices, and more extensive manipulations are expected because of advances in laser pulse...
SDL Introduces Solid-State Blue Laser for Printing, Biosensing Applications
Dec 1, 1996 — SDL Inc. of San Jose, Calif., unveiled a new solid-state blue laser during the Photonics East conference and exhibition in Boston last month. According to published specifications, the 450-nm "product preview" device is an air-cooled, waveguide...
Shattered Beamlet Lens Blamed on Timing Error
Dec 1, 1996 — LIVERMORE, Calif. -- A high-power experiment on Lawrence Livermore National Laboratory's Beamlet laser destroyed one of the setup's lenses and damaged another. No injuries were reported, but officials say that the September incident caused $70,000...
Toshiba Develops Blue-Purple Laser for Next-Generation Digital Storage
Dec 1, 1996 — Scientists at Toshiba Corp. have generated 417-nm pulses using a GaN semiconductor laser powered at room temperature. The company's metallorganic chemical vapor deposition technique made the development possible by controlling the phase boundary of...
Lambda Physik Fills $1 Million Order from US Diamond-Film Firm
Nov 1, 1996 — Lambda Physik GmbH of Göttingen, Germany, has delivered a $1 million order of excimer lasers to QQC Inc. of Detroit, for use in multiplexed laser cell diamond-film production. In QQC's laser technique, a substrate is heated by pulsed laser beams of...
LEOMA/OSA Schedule Human Resources Seminar for Photonics Industry
Nov 1, 1996 — A seminar targeting human resource problems that confront the photonics industry is being offered by the Laser and Electro-Optics Manufacturers' Association (LEOMA) and the Optical Society of America (OSA) at the Stanford Park Hotel in Menlo Park,...
Research Corporation Technologies Patents Blue Laser Advance
Nov 1, 1996 — Research Corporation Technologies (RCT) has patented a technology developed by scientists at Brown and Purdue universities that the company says will solve a major problem in the development of blue lasers. The technology overcomes the Schottky...
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