Abstract
The main characteristics required for a diffraction grating used for (de)multiplexing functions in spectral equalizing systems are investigated, both theoreticaly and experimentally. We show that volume-phase holographic (VPH) gratings can be used as dispersive elements instead of classic reflection surface-relief gratings presently employed in most optical telecommunication devices. A design method for this type of diffraction grating and experimental results are presented, confirming that VPH gratings are well suited for such applications.
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