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Enhanced FFP Tunable Filters

Photonics.com
Feb 2008
Micron Optics Inc.Request Info
 
ATLANTA, Feb. 22, 2008 -- Micron Optics Inc. said enhancements made to its current line of fiber Fabry-Perot (FFP) tunable filters include an available finesse value of 16,000, widely tunable filters with PM (polarization maintaining) fiber, and improved bandwidth variation.

The fiber Fabry-Perot tunable filter, the FFP-TF2, is now commercially available with a finesse value of 16,000, Micron Optics said, more than tripling previously offered standard finesse values. These very high finesse filters can be used for applications requiring filter response curve with a sharp top and very steep sides; typical contrast values are at 80 dB. Certain applications which previously required two filters cascaded to achieve this high finesse will now only need one FFP-TF2 filter.

Users can also select a widely tunable filter equipped with PM fiber. Micron Optics said it was the first company to introduce a one-peak 340-nm-wide tuning range Fabry-Perot filter; now this same filter is also available in a PM fiber version.

The company said it has also made significant improvements in the bandwidth variation of the FFP-TF2. Bandwidth variation over a single order is now a tight +/-5 percent, which it said is unheard of in widely tunable filter performance.

For more information, visit: www.micronoptics.com; e-mail: telecomsales@micronoptics.com

Micron Optics Inc.
1852 Century Place NE
Atlanta, GA 30345
Phone: (404) 325-0005
Fax: (404) 325-4082



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GLOSSARY
filter
1. With respect to radiation, a device used to attenuate particular wavelengths or frequencies while passing others with relatively no change. 2. See digital filter.
finesse
For a Fabry-Perot interferometer or etalon, a value for the transmission bandwidth which can be calculated as the ratio of the free spectral range to the full width half maximum of the transmission peaks. For an etalon, a high finesse is dependent on high reflectivity. Defects in the reflective surface will result in a lower finesse.
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
polarization
With respect to light radiation, the restriction of the vibrations of the magnetic or electric field vector to a single plane. In a beam of electromagnetic radiation, the polarization direction is the direction of the electric field vector (with no distinction between positive and negative as the field oscillates back and forth). The polarization vector is always in the plane at right angles to the beam direction. Near some given stationary point in space the polarization direction in the beam...
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