MTE Corp.    Menomonee Falls, WI 53051 9013
May 24, 2011 Supplied in wall mount configuration, 480 V Matrix PureSine® Active Harmonic Filter is used for coordinated variable load PFC, phase imbalance, and harmonic mitigation. Modular unit operates up to 51st harmonic with up to 12 harmonic orders selected individually. Supporting parallel operation, device features full-time DSP control system, shunt connection to facilitate maintenance, and LCD control panel with both English and Spanish text.

Dicon Fiberoptics Inc.    Richmond, CA 94804
Feb 24, 2011 Fitted with 4 MEMS Tunable Filters, Filter Array multiplies wavelength selection, optimizing metro and regional optical networks. After multi-wavelength signal passes through Tunable Filter, MEMS mirror tilts precisely to tune single wavelength channel to output fiber. Mirror features Gaussian-shaped pass-band optimized for 50 or 100 GHz channel spacing, ±50 pm wavelength setting accuracy within C or L Bands, and tuning speed of less than 30 ms.

Semrock Inc.    Rochester, NY 14624
Dec 09, 2010 Featuring wavelength tuning range of over 100 nm, TBP01-800/12 offers tunability over wavelengths from 390-800 nm, at >12% of normal incidence wavelength, by adjusting angle of incidence with no change in spectral performance. Rectangular filter is available in 25 x 36 x 2.0 mm sizes. It is suited for fluorescence microscopy and measurement applications, while polarization insensitivity, and high optical quality and damage threshold suit product for use in laser applications.

Dicon Fiberoptics Inc.    Richmond, CA 94804
Sep 16, 2010 Suitable for any application that requires wavelength tuning, MEMS Tunable Optical Bandpass Filter can be optimized for either 50 or 100 GHz channel plan. Unit features both continuous scan and channel parking capability. It can act as optical channel monitor for DWDM systems, optical spectrum analyzer for test and measurement, or tunable demultiplexer at ROADM node. Filter also meets needs of military and defense avionic systems.

Edmund Optics    Barrington, NJ 08007
Aug 17, 2010 By adjusting angle of incidence, Tunable Bandpass Filters offer tunability over broad wavelength range with essentially no change in spectral performance. Tuning range is greater than 12% of normal-incidence wavelength. Filters are suited for applications ranging from fluorescence imaging and measurements to hyperspectral imaging and high-throughput spectroscopy. With polarization insensitivity and high damage threshold, units are also suitable for laser applications.

Semrock Inc.    Rochester, NY 14624
Feb 01, 2010 Available in 25.2 x 35.6 x 2.0 mm sizes, VersaChrome(TM) bandpass filters offer tuning range of greater than 12% of normal-incidence wavelength and average transmission of greater than 90% with steep edges and wideband blocking. Applications include fluorescence microscopy, imaging, and quantitation, as well as spectral imaging. Due to their polarization insensitivity, optical quality, and damage threshold, filters are also suited for wide range of laser applications.

Edmund Optics    Barrington, NJ 08007
Oct 26, 2009 Continuously Variable Apodizing Filters include standard Bull's Eye versions, available in 25 and 50 mm diameters, with end densities that decrease radially from center. Reverse Bull's Eye filters feature high optical density coating on edge of filter, which increases from uncoated center, optimizing dynamic range in imaging systems. Both are suited for design wavelength range of 400-700 nm and create even illumination profile in optical systems.

Schaffner EMC, Inc.    Edison, NJ 08837
Apr 17, 2009 In addition to providing real-time mitigation of harmonic currents up to 50th order, ECOsine Active Filters immediately compensate for voltage dips and reactive power surges. Units continuously measure and analyze disturbances in power network and provide exactly opposite compensation current, responding in less than ½ ms. Filters are available in 3-phase/3-wire as well as 3-phase/4-wire configurations for 480 and 400 V grids, respectively, and with rated compensation currents from 30-300 A.

Linear Technology Corp.    Milpitas, CA 95035
Jan 08, 2009 Broadband active filters/ADC driver amplifiers include LTC6603, LTC6601-1, LTC6605-7, LTC6605-10, and LTC6605-14. Model LTC6603 features dual matched programmable ninth-order switched capacitor linear-phase filter and ADC driver, where as LTC6601-1, is low noise 0.5% tolerance lowpass active filter and ADC driver with configurable bandwidth from 5-28 MHz. LTC6605-7/-10/-14, are second-order linear phase dual matched lowpass active filters having bandwidths of 7, 10, and 14 MHz, respectively.

ABB Inc.    Auburn Hills, MI 48326
Sep 03, 2008 PQF series is designed for active harmonic filtering, load balancing, and reactive power compensation. Designed to solve harmonic and neutral current related problems, wall-mount PQFS range works equally with 3-phase, 3-wire or 3-phase, 4-wire systems. PQFM range, suited for active filtering of lower-capacity, 3-phase industrial loads, can comprise one master and up to 7 slave units. It is suitable for direct connection up to 600 V.

XP Power    Sunnyvale, CA 94085
Sep 14, 2007 Suited for harsh electrical environments, 500 W Model DSF500 protects DC-DC converters from surges, spikes, and ripples found on electrical system of any military platform. Input voltage is 10-34 Vdc, while output voltage is tracked and clamped to below 36 Vdc. Measuring 2.28 x 2.28 x 65 in., unit also protects against over-current conditions. Should demand exceed 28 A, warning signal can be used to disable DSF500 or turn off attached devices to reduce current.

Vicor Corp.    Andover, MA 01810 5424
Jul 08, 2004 Providing attenuation from 150 kHz to 30 MHz, Model QPI-4 delivers over 40 dB common-mode and more than 70 dB differential-mode noise attenuation at 500 kHz. It meets specifications for international 36–76 Vdc telecom bus, including 100 V, 100 ms surge requirement. Rated at 7 A, unit supports single or multiple dc-dc converters requiring up to 336 W of input power at 48 V input. Surface mount LGA package is rated for -40° to +100°C with 99% efficiency.

TDL Technology    Las Cruces, NM 88012-9736
Oct 02, 2002 Model 601 contains tunable 8-pole Butterworth highpass filter followed by tunable 8-pole Butterworth lowpass filter. Both filter responses are flat in pass band (unity gain) and roll off at 96 dB per octave beyond corner frequency. Corner frequencies can be set from 100 Hz to 40 kHz at front panel or over serial link from PC. Unit includes input analog anti-aliasing lowpass filter, variable gain output amplifier, and analog lowpass output filter.