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diode lasers News
Diode Lasers Power Growth in Sales
Feb 1, 2000 — A study by market consultants Frost & Sullivan of San Antonio reports worldwide revenues of $3.8 billion for the laser systems market in 1998. Sales of diode lasers were responsible for nearly half of that total. The communications industry represented the largest segment of end-user consumers of diode laser systems. The study forecasts robust growth in laser systems, following the continued use in materials processing, demand in the recovering Asian markets and predicted application ...
Inventor of Blue Diode Laser Leaves Nichia
Feb 1, 2000 — Citing a personal desire to pursue his research in an academic environment, Shuji Nakamura has left Nichia Corp. (formerly Nichia Chemical Industries Ltd.) of Anan, Japan. While he expressed gratitude for the opportunities at Nichia, he accepted a...
Polarized Laser Light Helps Reveal Porous Structures
CAMBRIDGE, Mass. -- CAMBRIDGE, Mass. -- As a rule, nuclear magnetic resonance (NMR) imaging has relied on liquid probes because gases are too low in density to return a strong signal. Scientists at the Harvard-Smithsonian Center for Astrophysics have challenged that...
Heat Sink Offers Better Cooling
COLUMBUS, Ohio — Microchannel heat sinks are commonly used to cool solid-state radar systems, diode lasers, and mainframe and supercomputers. They can remove heat 50 times more efficiently than conventional methods using liquid cooled cold plates. Recently, a...
Fiber Amplifier Pumps Reach 200-mW Level
Dec 1, 1999 — Scientists announced in the Sept. 20 issue of Applied Optics that they have fabricated 200-mW, 980-nm pump laser modules for erbium-doped fiber amplifiers. The diode lasers are coupled to single-mode fiber without epoxy or solder, making them...
Physicists Use Lasers to Achieve Fermi Degeneracy
BOULDER, Colo. — It was almost five years ago that Eric A. Cornell and Carl E. Wieman achieved Bose-Einstein condensation at the Joint Institute for Laboratory Astrophysics, cooling bosons to almost absolute zero. Now two other researchers at the same lab, which is...
FDA Panel Recommends Approval of Coherent Laser
Nov 22, 1999 — SANTA CLARA, Calif., Nov. 22 -- The Ophthalmic Drugs Subcommittee of the US Food and Drug Administration has recommended approval of Coherent Inc.'s Opal Photoactivator and Visudyne Therapy for use in treating the wet form of age-related macular...
Diode Lasers Seen Driving Growth of System Market
Nov 16, 1999 — SAN ANTONIO, Nov. 16 -- The growth of the global laser system market to $3.8 billion in 1998 was due in large part to diode laser systems, according to a report from market researcher Frost & Sullivan. The report predicts that increased...
Biolase Obtains FDA Clearances for New Diode Lasers
Oct 1, 1999 — SAN CLEMENTE, Calif., Oct. 1 -- Biolase Technology Inc. has obtained clearances from the US Food and Drug Administration to market the company's new lightweight diode lasers, TwiLite and HyLite, for use in dental cosmetic and soft tissue procedures....
German Researchers Employ Fiber Laser to Weld a Fine Seam
Oct 1, 1999 — Scientists from the Laserzentrum Fachhochschule Münster in Steinfurt, Germany, and the Technische Universitat Chemnitz reported that they seam welded stainless steel foil with a joint smaller than 70 µm. They employed a fiber laser that...
Competition Heats Up for the Blue Laser Market
Aug 1, 1999 — The race to corner the market for blue diode lasers recently picked up some new contenders, with the US military funding both company and university research programs. The first blue laser diode with 10,000-h continuous-wave operation was...
Palomar Gets FDA Clearance for Laser Hair Reduction
Apr 16, 1999 — LEXINGTON, Mass., April 16 -- Palomar Medical Technologies, Inc. announced that it has received clearance from the US Food and Drug Administration to market its LightSheer diode laser system as providing permanent hair reduction. Coherent, Inc. is...
Lessons from the Battlefield: Technology Transfer Cuts Both Ways
Apr 1, 1999 — As an industry, photonics can testify to the value of technology transferred out of the military. Charge-coupled devices, diode lasers and infrared imaging all owe much of their early development to defense basic research fueled by the Cold War and...
Diode Laser Turns up the Power in the Mid-IR
Feb 1, 1999 — Research at Northwestern University has introduced new options for semiconductor lasers operating in the mid- infrared range. Led by professor Manijeh Razeghi, scientists at the university's Center for Quantum Devices have developed high-power...
Tunable Diode Lasers Stand Up to Research and Commercial Applications
Jan 1, 1999 — 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...
Scientists Report High Efficiency in Semiconductor Diode Laser
Jun 1, 1998 — Researchers at Semiconductor Laser International Corp. in Binghamton, N.Y., recently demonstrated an 808-nm, high-power semiconductor diode laser with an efficiency of 56 percent operating at 25 °C. The company's engineers altered the design of...
Solid-State Lasers Join the Space Race
Jun 1, 1998 — In the 60s and 70s, scientists had carte blanche to develop space instruments. However, in todayis cost-conscious space programs, laser designers look towards Earth and improving commercial technologies to meet cost guidelines and accomplish mission...
Blue Lasers Meet Tough Commercial Requirements
May 1, 1998 — Light-emitting diodes (LEDs) and laser diodes with wavelengths below the red ( Gallium nitride and other III-V nitride-based semiconductors have a direct band gap that is suitable for blue light-emitting devices. The band gap energy of aluminum...
Photorefractive Volume Gratings Stabilize Wavelengths
May 1, 1998 — A research team from the National Research Laboratory of Metrology in Tsukuba, Japan, has stabilized the wavelengths of two diode lasers by using two photorefractive volume gratings in one lithium niobate (LiNbO3) crystal. Both wavelengths exhibited...
Quantum Cascade Laser Lights a Fire at Photonics West
Apr 1, 1998 — Lighting a match with a laser doesn't seem like that big a deal, unless it's done at room temperature using far-IR light from a diode laser. It was in such a fashion that the inventor of quantum cascade laser diode architecture, Federico Capasso of...
Are We On Exactly The Same Wavelength?
Mar 1, 1998 — If you have been using lasers for more than a few years, you can recall the days when the wavelength specified on a commercial diode laser was a rough estimate rather than a precise figure. As recently as the early 1990s, it was not unusual to buy...
Crystal Eases Blue Laser Production
Feb 1, 1998 — TROY, N.Y. -- Researchers at Rensselaer Polytechnic Institute have revived a bit of history in time for the first commercial blue-diode lasers. Companies hoping to manufacture blue lasers face several significant obstacles, including structural and...
Microlasers:
Feb 1, 1998 — The progressive replacement of gas lasers and flashlamp-pumped solid-state lasers by more efficient diode-pumped solid-state lasers started in laboratories more than a decade ago. Pumped with a 1-W CW diode laser, passively Q-switched microlasers...
All Solid-State Lasers:
Jan 1, 1998 — All-solid-state sources are comparable to high-power diode lasers with a few notable exceptions: they provide improved mode quality, energy storage for Q-switched applications, mode-locking for ultrashort pulses and alternative wavelengths. Going...
Diode Lasers:
Jan 1, 1998 — For years, scientists have searched for the secret to cheap, compact blue lasers for high-density optical storage. Blue diode lasers' short wavelength offers a small focused spot size, which would maximize the density and transfer rate of stored...
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April 2024
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