Title:
Prototype CO₂ laser-induced long-period fiber grating variable optical attenuators and optical tunable filters

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Braiwish, Mohammad I.
Bachim, Brent L.
Gaylord, Thomas K.
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Abstract
Prototype devices capable of variable attenuation at a fixed wavelength, wavelength tuning at a constant attenuation, and combinations of these spectral characteristics are demonstrated in CO₂ laser-induced long-period fiber gratings (LPFGs). These devices are based on controlled flexure by means of a piezoceramic platform. CO₂ laser-induced LPFG characteristics along with the fabrication and testing processes of these gratings are discussed. Devices with a optical attenuation of 13 dB and a wavelength tuning of 7 nm are reported.
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2004-03
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