Photonics/Optics

Laser Diode Module

Roithner Lasertechnik GmbH (Vienna, Austria) has introduced the ULV-445-300 laser diode module with 300 mW of optical cw power. The module emits a 445 nm blue collimated laser beam. The driver board, designed for a supply voltage of 12 VDC, is separated from the 30 × 30 × 62 mm3 laser head, and it supports TTL modulation up to 20 kHz. The ULV-445 laser module is also readily available with 600 mW of cw power.

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Blue Laser Diodes

Power Technology (PTI) (Little Rock, AR) has released new blue laser diode wavelengths and power levels. The new options include: 375nm 200mW, 395nm 120mW, 415nm 120mW, 420nm 120mW, and 460nm 100mW. The laser diodes also feature active temperature control, the availability of beam circularization and modulated versions, and an adjustable focus.

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Custom Microminiature Optics

Bern Optics (Westfield, MA) offers custom optical elements with dimensions as small as 0.20 mm. They can be custom engineered, ground, and polished to micron tolerances in a variety of configurations, including lenses, prisms, axicons, filters, windows, domes, and mirrors, as well as special components with combinations of plano, spherical, and cylindrical surfaces. Typically created from optical and filter glasses, these tiny elements can be produced to submillimeter dimensions, with or without specialized coatings.

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PFC and Ballast Control ICs

International Rectifier Corp. (El Segundo, CA) has introduced the IRS2580DS Combo8, an IC that integrates power factor correction (PFC) and ballast control in an 8-pin SO-8 package. To provide power factor correction, the IRS2580DS includes a boost converter control circuit operating in critical-conduction free-running frequency mode. The new IC also includes a 600V half-bridge control circuit working at 50 percent duty-cycle. It has variable frequency for driving the resonant mode lamp output circuit.

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Power MOSFETs

STripFET VI DeepGATE power MOSFETs from STMicroelectronics (Geneva, Switzerland) withstand maximum voltages up to 80V. Transistor options include the 60V STP260N6F6 and STH260N6F6-2, the 75V STP210N75F6 and STH210N75F6-2, and the 80V STL75N8LF6. The voltage ratings permit operation in 48V telecom applications. The STH260N6F6-2 has an Ohm on-state resistance of 0.0016, and the STx260F6N6 has a 180A current rating.

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Light Engine

Lumencor (Beaverton, OR) has released the SOLA light engine. The device offers solid state illumination and continuous white light from 380 to 680nm, allowing the user simple integration with existing filter cubes and hardware configurations. The SOLA, which can be controlled by microscopy software, couples to all major brands of microscope via 3 mm liquid light guide and adapters. Expected lifetime is greater than 15,000 hours.

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Photovoltaic Metallization Paste

DuPont Microcircuit Materials (MCM) (Bristol, UK) has introduced the low temperature processing DuPont™ Solamet® PV414 photovoltaic (PV) metallization paste designed for rotary screen printing to enable high-speed, roll-to-roll processing of thin and flexible solar cells and modules. The new offering was recently qualified at Flexcell, a leading Swiss producer of flexible amorphous silicon thin film modules, for building integrated photovoltaics (BIPV) and mobile solar chargers. Solamet® photovoltaic metallization pastes are key to higher efficiency and lower system costs for both crystalline silicon (c-Si) and thin film PV.

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