Laser Focus World articles from May 2002

Laser Focus World archives from May 2002

Editor's desk.
May 1, 2002... Photonics and optoelectronics technologies cut a broad swath through the science and technology universe. Just how broad is evident from a brief look at the advanced program of this month's Conference on Lasers and Electro-Optics (CLEO) to be...

Doped vanadate upconverts infrared to visible. (news breaks).
May 1, 2002... Solid-state vanadate lasers emitting in the visible may be possible based on research done by a group at the Polish Academy of Sciences (Warsaw, Poland). The researchers codope a vanadate crystal with ytterbium (Yb) and holmium (Ho) and subject...

Intracavity Dove prism boosts OPO beam quality. (news breaks).
May 1, 2002... Optical parametric oscillators (OPOs) pumped with nanosecond pulses typically have poor beam quality as a result of the required short cavities and large beam diameters. Researchers at Sandia National Laboratories (Albuquerque, NM) are reducing...

Plasmon waveguide converts far-field to near-field light. (news breaks).
May 1, 2002... As optical integrated circuits grow in complexity, their features must shrink in dimension to limit overall circuit size. Researchers at the Tokyo Institute of Technology (Yokohama, Japan) and the Japan Science and Technology Corp. (Tokyo,...

Optically pumped lead-salt VCSEL operates at 320 K. (news breaks).
May 1, 2002... Mid-infrared lasers with wavelengths that match the absorption spectra of gases are valuable for atmospheric monitoring. Electrically pumped edge-emitting lead-salt diode lasers cover these wavelengths, but cannot achieve room-temperature...

All-Raman-amplified spans transmit at 10 petabit-km/s. (news breaks).
May 1, 2002... In the field of fiberoptic communications, so-called hero experiments do have their place. Though it is sometimes difficult to sort through the various combinations of transmission length and data rate, multiplying data rate by distance gives a...

Quadrant-APD-equipped laser tracker compensates to 1 [micro]rad. (news breaks).
May 1, 2002... A group at the Communications Research Laboratory (Tokyo, Japan) is studying the effectiveness of silicon quadrant-type avalanche photodiodes (APDs) for use in laser tracking systems. As in non-APD quadrant detectors, the device under test,...

Far-infrared quantum detector bests bolometers. (news breaks).
May 1, 2002... A far-infrared (FIR) optical detector developed by a group at the University of Tokyo (Tokyo, Japan) exploits the cyclotron resonance of two-dimensional electrons in doped aluminum gallium arsenide/gallium arsenide heterojunctions. Fabricated...

Chalcogenide glass is highly nonlinear at 1.55 [micro]m. (news breaks).
May 1, 2002... Glasses with high optical nonlinearities have potential applications in ultrafast all-optical switches (AOSs), in which a phase shift induced in a waveguide Mach-Zehnder interferometer by a change in intensity causes switching. For a nonlinear...

Experiment and theory agree for self-written waveguides. (news breaks).
May 1, 2002... Researchers at Osaka University (Osaka, Japan) and Australian National University (Canberra, Australia) have constructed self-written waveguides in a photopolymer and have developed an analytical model of their creation, thereby aiding the...

Market is bigger than represented. (Letters).
May 1, 2002... Your review of the diode-laser market ("Laser Marketplace 2002," February, p. 61) pays very little attention to the high-peak-power pulsed-diode market. Your comments are limited to a sentence about the weapons simulation market. While the...

Reported dye concentration known for many years. (Letters).
May 1, 2002... In your article on a dendrimer dye lasers ("High-gain media leads to potent dendrimer laser," February, p. 37), (1) it is stated that, "Conventional organic laser dyes produce large fluorescence yield, but typically are limited to low dye...

Correction.
May 1, 2002... The photo of the laser guide-star system at the Keck II telescope (April, p. 30) should have been credited to A. Contos, W. M. Keck Observatory.

CLEO/QELS 2002 propagates knowledge. (Conference Preview).
May 1, 2002... This year, the Conference on Lasers and Electro-Optics and the Quantum Electronics and Laser Science Conference (CLEO/QELS; May 19-24; Long Beach, CA) will continue to be a strong forum for scientific paper presentations regarding...

Femtosecond fiber laser is energetic. (optoelectronics world news).
May 1, 2002... Fiber lasers allow for high-power, diffraction-limited emission, the generation of short pulses, and multicolor emission. Researchers at Friedrich-Schiller University (Jena, Germany) have raised the output of a femtosecond fiber laser by almost...

Iris-recognition technology goes to Heathrow. (Biometrics).
May 1, 2002... London's Heathrow Airport is hosting a five-month trial of a new passenger-processing service based on iris recognition. The Jet-Stream Travel Manager system, supplied by EyeTicket Corp. (McLean, VA), allows a passenger to be identified in...

SHG lights path toward molecular electronics. (Nonlinear Optics).
May 1, 2002... As semiconductor devices get smaller and smaller, the silicon dioxide layers at junctions get thinner and increasingly susceptible to breakdown due to electron tunneling. So a lot of research is directed toward developing organic dielectrics...

Alice and Bob grow apart. (Quantum Cryptography).
May 1, 2002... Quantum-key distribution may soon be possible from Earth to satellite. Two experiments have demonstrated that quantum cryptography can be used in practical, nonlaboratory situations, with single photons traveling through miles of free space. In...

Many-layered laser emits from 5 to 8 [micro]m. (optoelectronics world news).
May 1, 2002... Creating semiconductor lasers that emit over a broad range of wavelengths is a challenge; attempts have been numerous and fraught with limitations. Recently, scientists at Lucent Technologies' Bell Laboratories (Murray Hill, NJ) have thwarted...

Solder bonds directly to optical fiber. (Fiberoptics).
May 1, 2002... Used almost universally to bond electronic components to circuit boards or to each other, solder has desirable properties apart from its electrical conductivity: it solidifies in seconds, and has the rigidity of metal. In contrast, the epoxy...

Scaled-back OFC returns to its roots. (Conference Review).
May 1, 2002... Last year's Optical Fiber Communications (OFC) conference was a spectacle of venture-capital proportions; this year's was nearly mundane by comparison, reflecting the growing pains the optical-networking industry has endured the last 12 months....

Light sheet illuminates microbes. (Microscopy).
May 1, 2002... Catch a butterfly in a bottle, and any chance to observe its real-life behavior is lost. The same is true for aquatic microbes, which are traditionally studied by filtering them onto a membrane that is then placed under a conventional...

Light modulates magnetism in organic material. (Optical Storage).
May 1, 2002... Researchers at Ohio State University (Columbus, OH) and the University of Utah (Salt Lake City, UT) have observed photoinduced magnetism in an organic material, manganese tetracyanoethylene. Polycrystalline samples of the material were applied...

Holograms identify metal parts. (optoelectronics world news).
May 1, 2002... The advent of color inkjet printers has given counterfeiters and brand pirates a straightforward and inexpensive means to ply their trade. For this reason, holograms and other diffractive optical elements--which require an expensive laser...

Deformable mirror boosts coupling efficiency. (Optical Switching).
May 1, 2002... Researchers at the University of Neuchatel (Neuchatel, Switzerland) have demonstrated a micro-optical switch that has better performance for applications where a signal from a single input fiber must be switched into one of many receivers. The...

Biodetectors give early warning of anthrax. (Security).
May 1, 2002... Real-time detection of biological agents will be possible with the recent development of portable biological detectors built by Environmental Technologies Group (ETG; Baltimore, MD). Scientists at Lawrence Livermore National Lab (Livermore, CA)...

Bistable emitters make parallel readout easy. (optoelectronics world news).
May 1, 2002... Organic electronic devices that can be fabricated on flexible plastic sheets are lightweight and potentially inexpensive to make. Although organic diodes and a few other types of elements have been created, complete organic electronic circuits...

Laser monitors atomic-force microscope. (Japan watch).
May 1, 2002... TOKYO--Hideki Kawakatsu and colleagues at the University of Tokyo Institute of Industrial Science, Neo Ark Corp., and JEOL Ltd. have jointly developed a scanning-probe microscope (atomic-force microscope, or AFM) using a laser Doppler...

Integrated sensor resolves to 10 nm. (Japan watch).
May 1, 2002... TOKYO---Engineers at NTT Electronics have developed an optical sensor that measures position to a resolution of 10 nm. All its optical elements are integrated on a single silicon chip, making the sensor highly compact, Light-diffraction effects...

Perjury allegation enters blue-LED patent scrape. (laser industry report).
May 1, 2002... Just weeks before Shuji Nakamura was scheduled to receive the Benjamin Franklin Medal in Engineering for the inventiveness that led to a highly efficient blue-light-emitting diode, a federal judge recommended that he be prosecuted for perjury...

ISMT purchases its first EUV microstepper. (laser industry report).
May 1, 2002... International Sematech (ISMT; Austin, TX) has a purchase order for an MS-13 extreme ultraviolet (EUV) microstepper, to be built by Exitech (Oxford, England) and installed at ISMT during the fourth quarter of 2003. It will incorporate a dense...

Rockwell Scientific licenses coatings from Thales Optical. (laser industry report).
May 1, 2002... Rockwell Scientific Company (RSC; Thousand Oaks, CA) has obtained a license from Thales Optics (North Wales) for thin-film optical coating technology to be used in RSC's laser protective eyewear products for defense and commercial applications....

Wearable displays to be used in construction. (laser industry report).
May 1, 2002... Microvision (Bothell, WA) has signed a reseller distribution agreement with Laser Control (Bloomington, MN) for the Nomad Personal Display System. Laser Control will market the Nomad wearable display as part of its line of surveying and...

Fujitsu Quantum Devices (Yamanashi, Japan) and Sumitomo Electric Industries (Osaka, Japan) have entered a multisource agreement for a 10-Gbit/s transmission laser-diode module. (Also in the news ...).
May 1, 2002... Fujitsu Quantum Devices (Yamanashi, Japan) and Sumitomo Electric Industries (Osaka, Japan) have entered a multisource agreement for a 10-Gbit/s transmission laser-diode module that enables the conversion of electric signals to optical signals...

Intel (Santa Clara, CA), Picolight (Boulder, CO), and Infineon Technologies, have established a multisource agreement. (Also in the news ...).
May 1, 2002... Intel (Santa Clara. CA), Picolight (Boulder, CO), and Infineon Technologies North America, a wholly owned subsidiary of Infineon Technologies, have established a multisource agreement to define a smaller, more cost-effective form factor for...

JMAR Technologies. (Also in the news ...).
May 1, 2002... For the year 2001, revenues at JMAR Technologies (San Diego, CA) were $18.7 million compared with $19.6 million for 2000. The 5% year-to-year decline in overall revenues was attributable to a 45% decrease in sales of the company's positioning...

IQE forms strategic partnership with CST. (optics industry report).
May 1, 2002... IQE (Cardiff, Wales) has announced a strategic partnership with CST Global (Glasgow, Scotland), the compound-semiconductor optoelectronic foundry. The partnership extends the existing close working relationship between the companies to provide...

Light Management Group subsidiary wins distribution contract. (optics industry report).
May 1, 2002... The South American subsidiary, Optico Luz SA, of Light Management Group (Norcross, GA) has procured a contract to distribute NetScreen Technologies (Sunnyvale, CA) products for Esoluciones S.A. According to the terms of the contract, Optico Luz...

Meikle Automation makes strategic moves. (optics industry report).
May 1, 2002... Meikle Automation (Kitchener, Ont., Canada) has entered an agreement with Agilent Technologies (Palo Alto, CA) that calls for cooperation initially based on integration of equipment and technologies, and a cooperation of sales and marketing...

Schott Lithotec acquires DuPont Photomasks unit. (optics industry report).
May 1, 2002... Schott Lithotec USA, a wholly owned subsidiary of Schott Lithotec AG (Jena, Germany), has acquired the photoblank business unit of DuPont Photomasks (Round Rock, TX). DuPont Photomasks has also entered a long-term supply agreement with Schott...

Tektronix signs agreement to acquire Profile. (optics industry report).
May 1, 2002... Tektronix (Beaverton, OR) has signed an agreement to acquire Profile Optische Systeme (Munich, Germany), a manufacturer of optical-component test and measurement equipment. Profile will be integrated with Tektronix's optical business, expanding...

Opto Speed. (Also in the news ...).
May 1, 2002... Opto Speed (Mezzovico, Switzerland) has secured nearly US$17.6 million in a second round of financing.

The Society for Imaging Science & Technology (Springfield, VA) and SPIE (The International Society for Optical Engineering; Bellingham, WA) are relocating the jointly sponsored Electronic Imaging conference to Santa Clara. (Also in the news ...).
May 1, 2002... The Society for Imaging Science & Technology (Springfield, VA) and SPIE (The International Society for Optical Engineering; Bellingham, WA) are relocating the jointly sponsored Electronic Imaging conference to Santa Clara, CA, on Jan. 20-24,...

Olympus Optical Company. (Also in the news ...).
May 1, 2002... Olympus Optical Company (San Jose, CA) has launched Olympus's MEMS (microelectromechanical systems) Foundry Services.

Flextronics Photonics (San Jose, CA) and Peregrine Semiconductor (San Diego, CA). (Also in the news ...).
May 1, 2002... Flextronics Photonics (San Jose, CA) and Peregrine Semiconductor (San Diego, CA) have announced a joint marketing, manufacturing, and development agreement.

Teem Photonics. (Also in the news ...).
May 1, 2002... Teem Photonics (Grenoble, France) has opened a subsidiary located in New York City.

Ultratech Stepper (San Jose, CA), has joined Global Care. (Also in the news ...).
May 1, 2002... Ultratech Stepper (San Jose, CA), has joined Global Care--an industry-wide environmental health and safety initiative offered by SEMI (Semiconductor Equipment and Materials International; San Jose, CA).

Investment brings eMagin to Rohm. (imaging & detector industry report).
May 1, 2002... eMagin (Hopewell Junction, NY), and Rohm Company (Kyoto, Japan) have announced a strategic investment by Rohm in eMagin. Rohm is purchasing 1.28 million shares of eMagin common stock at $0.78 per share, as well as warrants to purchase an...

Analogic receives open-ended order for 1000 imagers. (imaging & detector industry report).
May 1, 2002... Analogic (Peabody, MA) has received an open-ended order for up to 1000 of its explosive assessment computed tomography (EXACT) systems from an original equipment manufacturer (OEM), according to a company announcement, which describes EXACT as...

Face-recognition system identifies `Afghan Girl'. (imaging & detector industry report).
May 1, 2002... Viisage Technology (Littleton, MA) has announced that its face-recognition technology was used by National Geographic to help verify the identity of the "Afghan Girl," Sharbat Gula, who graced the cover of the magazine in 1984. Because at least...

Coreco focuses new division on expansion of end-user base. (imaging & detector industry report).
May 1, 2002... Coreco Imaging (Montreal, Que., Canada) has formed an Intelligent Products Division to provide easy-to-use, prepackaged machine-vision products to end users. Headquartered in Billerica, MA, this wholly owned subsidiary of Coreco Imaging will...

InfoTrends Research Group. (Also in the news ...).
May 1, 2002... A new report, "Document Imaging Scanner Forecast," from InfoTrends Research Group (Boston, MA) projects that unit shipments of document imaging scanners will grow at a projected 33% annually through 2006, with revenues growing 12%.

DRS Technologies. (Also in the news ...).
May 1, 2002... DRS Technologies (Parsippany, NJ) has received a contract to design and manufacture dual-display sonar consoles for the Sonar 2087 Project of the United Kingdom's Royal Navy.

FLIR Systems Inc. (Also in the news ...).
May 1, 2002... FLIR Systems Inc. (Portland, OR) has launched seven new handheld infrared-camera models to support the company's high-end professional customer base as well as enable entry into new commercial-market applications.

Luna Innovations. (Also in the news ...).
May 1, 2002... Luna Innovations (Blacksburg, VA)is launching a fourth company, Luna Energy, focusing on development and commercialization of sensors for the oil and gas industry.

Dainippon Screen Manufacturing Co. (Kyoto, Japan) and Agfa (Mortsel, Belgium) are planning to deploy the Silicon Light Machines (San Jose, CA). (Also in the news ...).
May 1, 2002... Dainippon Screen Manufacturing Co. (Kyoto, Japan) and Agfa (Mortsel, Belgium) are planning to deploy the Silicon Light Machines (San Jose, CA) grating light-valve device in their next-generation and latest computer-to-plate printing systems,...

Universal Display. (Also in the news ...).
May 1, 2002... Universal Display (Ewing, NJ) has been awarded a $69,951 Phase I contract by the U.S. Army to demonstrate the feasibility of using three of its proprietary organic light-emitting diode (OLED) technologies--high-efficiency phosphorescent,...

Intel expands optical-networking business. (fiberoptics industry report).
May 1, 2002... Intel (Santa Clara, CA) is expanding its optical-networking business to include photonics design and manufacturing. Intel recently completed a 70,000-sq-ft design, fabrication, and assembly/test facility in San Jose, CA, built specifically for...

Worldwide metro DWDM market to approach $12.6 billion by 2006. (fiberoptics industry report).
May 1, 2002... The market opportunity for metro DWDM systems will increase from almost $1.4 billion in 2001 to nearly $12.6 billion by 2006, according to a market and technology assessment report from Pioneer Consulting (Boston, MA), "Metro DWDM: Global...

BT and Lucent launch global optical-transport network. (fiberoptics industry report).
May 1, 2002... British Telecommunications (BT; London, England) and Lucent Technologies (Murray Hill, NJ) have announced successful implementation of a high-capacity optical network to support BT's international requirements and expansion into the services...

Electronic Connections opens cable facility. (fiberoptics industry report).
May 1, 2002... Electronic Connections (Englishtown, NJ) has acquired a cable-assembly operation in Hatfield, PA. Cables and Assembly Technology (CAT) is housed in a 10,000-sq-ft facility. "By acquiring this facility, we are able to provide total design and...

Photonic IC vendor makes commercial debut. (fiberoptics industry report).
May 1, 2002... Intense Photonics (High Blantyre, Scotland) made its commercial debut at OFC, demonstrating the first ICs fabricated at its new compound semiconductor plant, and unveiling details of a comprehensive range of indium phosphide devices for dense...

Two-thirds of DSL market resides in Europe and Asia-Pacific. (fiberoptics industry report).
May 1, 2002... Global service-provider spending on digital subscriber line (DSL) equipment topped $2.3 billion in 2001, according to RHK (South San Francisco, CA). Europe and Asia-Pacific led the global market with 66% of ports shipped. Alcatel remained the...

Alcatel Optronics (Paris, France), JDS Uniphase (San Jose, CA, and Ottawa, Ont., Canada), and Kamelian (Oxfordshire, England) have announced a multi-source agreement for semiconductor optical amplifiers. (Also in the news ...).
May 1, 2002... Alcatel Optronics (Paris, France), JDS Uniphase (San Jose, CA, and Ottawa, Ont., Canada), and Kamelian (Oxfordshire, England) have announced a multi-source agreement for semiconductor optical amplifiers, defining common mechanical and optical...

Essex (Columbia, MD) and Fiberspace (Woodland Hills, CA) have signed a memorandum of understanding. (Also in the news ...).
May 1, 2002... Essex (Columbia, MD) and Fiberspace (Woodland Hills, CA) have signed a memorandum of understanding to comarket the Essex hyperfine WDM technology and Fiberspace's Gridlocker laser source.

NEC Compound Semiconductor Devices (Kanagawa, Japan) and Sumitomo Electric Industries (Osaka, Japan) have joined into a multisource agreement. (Also in the news ...).
May 1, 2002... NEC Compound Semiconductor Devices (Kanagawa, Japan) and Sumitomo Electric Industries (Osaka, Japan) have joined into a multisource agreement to set a common architecture for 10-Gbit/s receiver modules used in optical networking.

Iolon (San Jose, CA) has expanded its worldwide presence with the opening of its Tokyo office. (Also in the news ...).
May 1, 2002... Iolon (San Jose, CA) has expanded its worldwide presence with the opening of its Tokyo office and a distribution agreement with leading Japanese telecommunications distributor MTT-ME (Tokyo, Japan).

Scientists from Bell Labs, the research and development arm of Lucent Technologies (Murray Hill, NJ), have sent 2.56 Tbit (trillion bits) of information per second over a distance of 4000 km (2500 mi). (Also in the news ...).
May 1, 2002... Scientists from Bell Labs, the research and development arm of Lucent Technologies (Murray Hill, NJ), have sent 2.56 Tbit (trillion bits) of information per second over a distance of 4000 km (2500 mi)--roughly the distance between Orlando, FL,...

Optiwave (Ottawa, Ont., Canada) has entered into an OEM agreement with Corning (Corning, NY). (Also in the news ...).
May 1, 2002... Optiwave (Ottawa, Ont., Canada) has entered into an OEM agreement with Corning (Corning, NY) whereby Optiwave's EDFA Design LITE software tool for the design of optical amplifiers and lasers will be distributed with Corning PureMode...

Essient Photonics. (Also in the news ...).
May 1, 2002... Bringing with it eight years of photonic research, Essient Photonics (Glasgow, Scotland) has announced its first round of funding totaling US$7 million.

Should I leave my job to pursue an MBA degree? (business forum).
May 1, 2002... Q: I have been in sales/marketing in a laser company. Should I go full-time for my MBA or continue my current job and earn an MBA over time? A: My suggestion is to attend full-time unless your financial situation does not allow you to do...

Sustaining the corporate family. (comment).
May 1, 2002... Is running a company like running a family? Executives struggle with this question as they attempt to lead their companies through a recession. Companies promoting the family concept face the dilemma of how to explain to their employees that...

Ultrafast technology delivers OEM lasers. (Ultrafast Laser Applications).
May 1, 2002... The first applications for any new class of laser are usually as tools in scientific research. Industrial applications do not develop until there are robust lasers available from original equipment manufacturers (OEMs) that feature reliable,...

Sealed C[O.sub.2] lasers find new applications; radio-frequency-excited sealed carbon dioxide lasers are increasingly being used to mark, cut, drill, and weld inorganic materials. (Low-Power C[O.sub.2] Lasers).
May 1, 2002... It is well-known that low-power radio-frequency (RF)-excited sealed carbon dioxide lasers can cut plastics, engrave rubber, mark wood, and process many other organic materials. Less well-known is the fact that these lasers can mark and weld...

Laser displays move from the amphitheater toward the living room; solid-state systems are making laser displays and light shows economical for smaller audiences and are paving the way for laser TV in the home. (Focus on: entertainment).
May 1, 2002... At the dawn of electrical technology, electric illumination by arc lamps was suitable only for high intensity outdoor applications. Edison "subdivided the electric light" by inventing the light bulb and making electric lighting available for...

Dichroic filters provide color stability; maintaining constant transmission even under very high temperatures, dichroic filters produce reliable color for stage, television, and film lighting. (Focus on: entertainment).
May 1, 2002... Although dichroic filters have long been commonplace in technical industries, they were seldom used in entertainment lighting until about 20 years ago. It has always been the case that the residential and commercial lighting industries have...

Liquid-crystal film eclipses the sun artificially. (Spatial Light Modulators).
May 1, 2002... It's a challenging task to block direct sunlight in an optical system while retaining the ability to observe scenery surrounding the sun. A compelling need for such an artificial solar eclipse arises in many surveillance and reconnaissance...

Thin films improve 50-GHz DWDM devices; the high performance and simple structure of 50-GHz thin-film filters provide an effective alternative to arrayed-waveguide-grating and fiber-Bragg-grating technologies. (IR Optics).
May 1, 2002... Given its low cost and high reliability, it is not surprising that thin-film-filter technology has come to dominate the 200- and 100-GHz dense-wavelength-division-multiplexing (DWDM) markets. (1) Competing solutions such as...

Novel VCSEL designs deliver high single-mode output power; improvements in VCSEL technology have generated innovative designs for applications requiring high single-mode powers, including the selectively oxidized VCSEL and the [I.sup.2]-VCSEL. (Vertical-Cavity Lasers).
May 1, 2002... Used in a wide variety of applications, compact, efficient, and manufacturable lasers operating in the milliwatt-level output-power range are increasingly in demand. Applications include high-speed laser printing (780 nm), optical storage...

Evolutionary design process ponders optoelectronic eye; tunnel junction and vertical integration of phototransceiver provide alternative to CCDS for mass-producible, monolithically integrated image sensors. (Detector Arrays).
May 1, 2002... Image sensors for many high-performance applications are based on high-performance--but relatively expensive--charge-coupled devices (CCDs). Moreover, a primary cost factor in CCD-based sensors is the incompatibility between CCD technology and...

Computed tomography adds third dimension to terahertz imaging; unlike traditional x-ray CT, which only measures the amplitude of the transmitted radiation, t-ray CT measures the transmitted pulse shape to reveal more information about the sample. (Terahertz Imaging).
May 1, 2002... Terahertz radiation occupies a large portion of the electromagnetic spectrum between the infrared and microwave bands from 0.1 to 10 THz. This frequency range presents the next frontier in imaging science and technology. Compared to the...

Creating high-power optical coatings is complex; fabricating high-power thin-film optical coatings challenges every step of the manufacturing process and requires great attention to cleanliness. (Optical Fabrication).
May 1, 2002... High-power thin-film optical coatings are typically required for optics that must handle sustained high-power output from lasers. These coatings can be reflecting, transmitting, polarizing, or beamsplitting; it is important to note that "high...

Time to break out: years of research have positioned several emerging types of diode lasers for commercial release: tunable devices, those with true blue output, and long-wavelength VCSELs. All have enormous market potential. (Back to basics: semiconductor lasers).
May 1, 2002... The announcement of the gallium nitride (GaN) blue diode laser by Nichia Industries (Anan, Japan) in 1999 perhaps drew as much attention inside and outside of the industry as any development since the invention of the laser itself. But...

Mitigating nonlinear effects is essential to long-haul transmission systems; approaches to control nonlinearities are based on maintaining reduced power densities, but a long-term solution may require full signal regeneration. (Optical Networking).
May 1, 2002... Nonlinear effects can impose significant performance limitations on fiberoptic systems. Although glass itself is a highly linear material, fiberoptic transmission pushes nonlinear thresholds in two important ways. First, fiber geometry strongly...