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ENHANCED GRATING

Photonics Spectra
Jul 2004
Wasatch Photonics Inc.Request Info
 
The Dickson WP-1200 from Wasatch Photonics is an enhanced-volume phase holographic grating that operates from 1525 to 1565 nm, with polarization-dependent loss of <0.3 dB, insertion loss of <0.8 dB and dispersion of 7.13°. The company says that the >80-channel, small-footprint device is rugged, scratch-resistant and easy to integrate. It offers parallel channel separation, athermal stability and, as an option, hermetic sealing.


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GLOSSARY
holographic grating
The generation of a grating on a blank by the holographic process. A series of interference fringes, corresponding to the grooves of the desired grating, are recorded on a photosensitive layer, and the subsequent chemical treatment forms a modulated profile on the surface of the blank by selective dissolution.
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