VPH Gratings at the Heart of Everything We Do
At the heart of everything we do at Wasatch Photonics is a volume phase holographic transmission grating.
Finding the Right VPH Grating for You
Durable, highly efficient, low polarization dependence
For 25 years, Wasatch Photonics has designed, manufactured, and supplied gratings, with over 250,000 integrated into customer products, demonstrating proven reliability.
Our VPH transmission gratings provide high efficiency, low polarization dependence, and uniform performance across broad bandwidths and large clear apertures in a robust, field-tested design. Wasatch multiple patented technologies enable us to offer you flexible, application-specific grating solutions.
Products & Solutions
Design & Consulting
Collaborate with our optical experts to choose the right grating
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Custom & OEM Gratings
Bring your project to life with Custom & OEM Grating tailored to your needs
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Design Capabilities
Explore the 3 principal VPH grating methodologies
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Online Shop
Browse and order ready-to-ship grating products directly from our Online Shop
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lifetime gratings
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VPH Gratings Benefits
Volume phase holographic (VPH) gratings are created by holographically recording a periodic refractive index pattern in dichromated gelatin sealed between optical windows. Their flexible manufacturing process enables cost-effective customization of groove density, bandwidth, polarization sensitivity, and other parameters for each application.