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Advantages of VPH Gratings

Author: Dominic Speer, Cicely Rathmell
Monday, January 13, 2020
Wasatch Photonics Inc.

Transmission gratings open up many design options for the optical designer. In this tech note, we consider one special type: volume phase holographic (VPH) gratings. With benefits ranging from superior optical performance and design flexibility to robustness and consistency, VPH gratings are ideal for applications like optical coherence tomography, spectroscopy, hyperspectral imaging, laser pulse compression, and astronomy. These transmission gratings lend themselves well to special diffractive elements like grisms, and can be fabricated in sizes from

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