Typical VP Grating Parameters

• Line density: 300 to 6000 l/mm

• Index modulation (Dn): 0.02 to 0.10

• Ave. index (n): 1.5

• Grating depth (d): 4 to 30 mm

• Wavelength range: 0.4 to 1.5 mm

  • may be viable from 0.3 to 2.8 mm.

• Grating size: 75 by 100 mm

  • limited by holographic exposure system
  • expandable to 500 by 700 mm

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