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T-GP3509N - VPH Transmission Grating, 930 nm DWL, 900 Lines/mm, 25° AOI, 50 mm x 30 mm

Fosco Connect Part No.: T-GP3509N

  • $ 1,328.00 or



T-GP3509N - VPH Transmission Grating, 930 nm DWL, 900 Lines/mm, 25° AOI, 50 mm x 30 mm

Product Drawing

  • Design Wavelength 930 nm
  • Spatial Frequency 1200 lines/mm 
  • Angle of Incidence at the Design Wavelength 34°
  • Diffraction Efficiency 885 nm: S-Pol > 75%; P-Pol > 80%
    930 nm: S-Pol > 80%; P-Pol > 80%
    975 nm: S-Pol > 80%; P-Pol > 70%
  • BBAR Coating 750 - 1050 nm Ravg < 0.75%
  • Cover Plate Substrate or Equivalent
  • Dimensions 50.0 mm x 30.0 mm x 6.0 mm
T-GP3509N Specifications
Design Wavelength 930 nm
Spatial Frequency 900 ± 2 lines/mm
Line Perpendicularity ±1° Off of 50 mm Edge
Angle of Incidence (AOI)a 25° ± 1°
Diffraction Efficiencyb 892 nm: S-Pol > 85%; P-Pol > 88%
930 nm: S-Pol > 88%; P-Pol > 88%
968 nm: S-Pol > 88%; P-Pol > 85%
BBAR Coatingc 750 - 1050 nm
Ravg < 0.75%
Transmitted Wavefront Error (RMS) <λ/4 at 632.8 nm
Grating Film Dichromated Gelatin
Cover-Plate Substrate N-BK7d or Equivalent
Surface Quality 40-20 Scratch Dig
Dimensions (L x H x T) 50.0 mm x 30.0 mm x 6.0 mm
Clear Aperture >42 mm x 22 mm
Length Tolerance +0.0 mm / -0.2 mm
Height Tolerance +0.0 mm / -0.1 mm
Thickness Tolerance ±0.2 mm
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