Features

Light-Emitting Diodes

OSRAM Opto Semiconductors (San Jose, CA) offers an enhanced line of Power TOPLED® light-emitting diodes (LEDs) that features the company’s thin-film chip technology within the packages that produces brighter light. Lensed Power TOPLED 30° and 60° devices provide matched radiation patterns in all colors, delivering higher intensity light in a more uniform and focused beam. Available indium gallium nitrite (InGaN) colors include blue and true green in all radiation patterns, along with InGaN white devices in the standard package.

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Optical Design Software

RSoft Design Group (Ossining, NY) offers Optical Communication Design Suite Version 4.6 software, including OptSim and a multimode add-on called ModeSYS. The new release provides support for new applications including Electronic Dispersion Compensation, 40-Gigabit-per-second systems, RF Photonics (Radio-over-Fiber links), DPSK systems, FTTx PON, and high-power optical amplifiers. The BER estimation technique for accurate treatment of noise statistics is based on Karhunen-Loeve series expansion for optical signal and noise.

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Regenerative Laser System

ELS Electronic Laser System (Fort Worth, TX) has released the PowerDisk regenerative laser system that produces pulses with up to 25 mJ energy and 10-ns duration at 1 kHz. The repetition rate can be selected between 1 kHz and 100 kHz. The system is based on the VersaDisk thin-disk laser as a seed laser. The fundamental wavelength can be set between 1010 nm and 1055 nm. To narrow the linewidth of the seed laser to 5 MHz, an etalon is inserted into the optical cavity.

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High-Power LEDs

American Bright Optoelectronics Corp. (Chino, CA) has introduced the BWL-3B series of 3-watt, high-power LEDs in a 9 × 9-mm package that consists of multiple dice in a single multi-leaded package. This packaging allows for each die to be both independently addressable and assignable. The design allows for stage powering of the device in 1-watt increments, providing three separate flux intensities without the need for complex controllers or specialty drivers.

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Spectroscopic Reflectometer

HORIBA Jobin Yvon (Edison, NJ) offers the DigiScreen spectroscopic reflectometer capable of measuring film thickness deposited on a large-area glass substrate in less than one second. With a spectral range of 400 nm to 800 nm, the DigiScreen can measure film thickness from 100 nm to several microns, and accepts sample sizes up to 2.5 × 2.7 m. The sample is manually loaded on a vertical, large-area motorized stage tilted at an angle of 10°. A Quartz Tungsten Halogen (QTH) light source coupled to an optical fiber is focused onto the sample, giving a spot size of 2 mm in diameter. A second optical fiber collects the light reflected from the sample. A 2048-pixel CCD coupled with a spectrograph measures the reflectance of the sample. The system can characterize materials such as SiN, SiON, a-Si(n+), a-Si (HDR, LDR), LTPS, c-Si, Silane-based SiOx, and TEOS.

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Photo Integrated Circuits

Hamamatsu Corp. (Bridgewater, NJ) offers a transmitter-receiver pair of photo integrated circuits (ICs) for use in MOST-compliant automotive multimedia networks. The L10063-01 transmitter and S10064-01 receiver provide a maximum data communications rate of 50 Mbps over plastic optical fiber links. The transmitter offers an operating mode that reduces the optical output level by half, reducing power consumption. The receiver has a low-power-consumption “sleep mode” and can shift into normal operating mode by detecting a light trigger. The receiver also features a wide dynamic range and is immune to external noise. Both components are housed in a clear plastic package and have an operating temperature range of -40°C to +105°C. Signal transfer between the components is performed digitally via a TTL interface.

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Ethernet CCD Camera

The TM-1405GE from JAI PULNiX (San Jose, CA) is a high-resolution, 1.4-megapixel CCD camera. The interline transfer CCD permits full vertical and horizontal resolution with shutter speeds up to 1/16,000 sec. Asynchronous test, combined with a no-delay, pulse-width controlled shutter, provides flexible triggering and exposure control for machine vision applications. The camera is combined with a standard 1/2" image sensor and captures 30 frames per second at full resolution of 1392 × 1040. The camera features 100-meter cables, standard ports, and a look-up table that allows full dynamic range control of the CCD by externally selectable knee slopes. The camera has both digital Gigabit Ethernet and analog output for interfacing with other equipment.

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