Features

Photodarkening-Resistant Fibers

nLIGHT (Vancouver, WA) has released highly doped, photodarkening-resistant ytterbium fibers with up to 60% higher absorption at 920nm and pump conversion efficiencies routinely over 75%. The LIEKKITM Yb2000 fibers are available in core/clad geometries ranging from 7/125 μm to 30/250 μm in non-polarization and polarization maintaining versions. The large mode area (LMA), low numerical aperture (NA) fibers exhibit a five-fold decrease in loss under accelerated stress testing conditions.

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UV LEDs

OPTEK Technology (Carrollton, TX) introduces OUE8A ultraviolet LEDs in the UV-A spectrum. OUE8A UV LEDs are offered in a variety of wavelengths and are housed in hermetic TO-46 metal can packages. The UV LEDs are suitable for medical and industrial applications including phototherapy treatment; dental applications; fluorescence and ultraviolet-visible spectroscopy; photo-catalyst curing of inks; coatings and adhesives; and paper currency and document validation.

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Ambient Light Sensor ICs

ROHM Semiconductor (San Diego, CA) releases analog and digital Ambient Light Sensor (ALS) ICs for the control of LED backlighting for LCD-equipped devices. Featuring ROHM’s proprietary trimming process and use of multiple photodiodes with different junction depths, the ALS ICs provide an accurate output with little variation between various light sources. They offer uniform visibility for LCDs over a range of ambient light levels and sources, from incandescent or fluorescent light to full sunlight.

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Digital Wavefront Analyzing System

DataRay (Boulder Creek, CA) introduces PhaseProTM, a Digital Wavefront Analyzing system that measures intensity and wavefront phase with high resolution in real-time in one shot. PhasePro employs patented data reduction techniques and custom optics to process simultaneous beam images from two planes in z. The system incorporates a compact, port-powered USB 2.0, 2/3" CCD camera. PhasePro operates under Windows XP or Vista (32) and offers Active X & LabVIEWTM interfacing.

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DUV Dynamic Interferometer

The FizCam DUV interferometer from 4D Technology (Tucson, AZ) provides accurate measurement of optics and optical systems at 193 nm wavelength (deep ultra-violet), even in the presence of vibration and air turbulence. The FizCam DUV incorporates a single camera, high-speed optical phase sensor that measures in less than 5 milliseconds. Motorized controls include 2X discrete optical zoom, focus, polarization, input beam alignment, transmission flat tip/tilt, and optional return flat tip/tilt. FizCam DUV components are stainless/electroless nickel-plated.

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Thin Film Measurement Instrument

The Craic Technologies QDI 2010 FilmTM is available from Elliot Scientific (Hertfordshire, UK). The QDI 2010 Film is a specialized instrument developed from the existing QDI 2010 UV-VIS-NIR microspectrophotometer, combining UV microscopy and microspectroscopy into one tool. The QDI 2010 Film can measure the thickness of thin films covering sub-micron or larger sampling areas, by either transmission or reflectance in a rapid and non-destructive fashion. The instrument can analyze the film on both transparent and opaque substrates.

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LED Color Correction Filters

Abrisa (Santa Paula, CA) has introduced color correction filters for energy-efficient LEDs. The durable LED filters are ideal for interior and architectural lighting design, and can be easily interchanged to achieve color variations, subtle diffusion, or to create a specific lighting atmosphere. The color correction filters are available in transparent or antireflective (AR) coatings, to maximize LED light output. Available in sizes ranging from micro-optics up to 27 inches in diameter, the filters operate between -60°C and +100°C.

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Marking Laser

The TruMark 3010 marking laser from TRUMPF (Farmington, CT) is suitable for users who need to mark small batches or individual workpieces. The marking laser features user-friendliness, compact size, and low maintenance. Due to a convection-cooled laser head, the TruMark 3010 is a silent companion without creating unwanted air-flow close to the workpiece. Its NAVIGATOR software determines the optimal laser settings for marking, such as pulse frequency, pulse power, or scanner speed. The diode-pumped, solid-state laser has a wavelength of 1064 nm.

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Organic Photovoltaic Technology

Cytec Industries (Woodland Park, NJ) and IMEC (Leuven, Belgium) have collaborated to develop a commercially viable technology for organic photovoltaic devices with enhanced stability and extended lifetime. The operational lifetime of organic solar cells must be improved to extend beyond 5 years. Intrinsic stability issues of organic solar cells will be addressed by stabilizing the nanomorphology of the active material blend. The ingress of extrinsic degradation sources of oxygen and water vapor will be suppressed by the development of an appropriate barrier, encapsulation technology.

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Specialty Fibers for Er:YAG Lasers

Infrared Fiber Systems (Silver Spring, MD) produces HPTM Fiber, a Germanium Oxide glass fiber for use with Er:YAG and Er:YSGG lasers. Transmission range is from visible to 3.0 microns, with typical absorption of 0.5 dB/m at 2.94 microns and 0.25 dB/m at 2.79 microns. HP Fiber is non-toxic, has good flexibility, high mechanical strength, and can handle up to 20 watts of laser power.

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