Our Custom PPLN service

Our custom design and fabrication capability provides application-specific service with specialist grating design and manufacture, resulting in a wavelength conversion solution tailored to your needs.

We offer a range of custom design packages including; one-off crystals, OEM prototyping and large-volume manufacture.

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Key features of Custom PPLN

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  • Magnesium-doped PPLN
  • Poled periods: 3µm – 37µm(+)
  • Crystal lengths: 0.3mm – 50mm
  • Grating width: 0.5mm – 6mm
  • Multiple different poled periods in a single crystal
  • Variable grating aperture and spacing
  • Various crystal thicknesses
  • Custom optical coatings
  • Flexible service; one-off crystals to large scale production
  • Technical consultation and advice
  • Crystal modeling and design service
  • PPLN crystals from stock


All of our crystals are supplied clip-mounted, ready for use in our ovens and controllers.

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A Complete Solution

Discover our range of PPLN accessories, allowing for easy integration of our crystals into your optical arrangement.

PPLN Accessories

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If you cannot find a stock item that matches your requirements, you can use our online calculator or submit an enquiry.

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