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T-GP3508U - VPH Transmission Grating, 1300 nm DWL, 800 Lines/mm, 31° AOI, 50 mm x 30 mm

Fosco Connect Part No.: T-GP3508U

  • $ 1,352.00 or



T-GP3508U - VPH Transmission Grating, 1300 nm DWL, 800 Lines/mm, 31° AOI, 50 mm x 30 mm

Product Drawing

  • High First-Order Diffraction Peak Efficiency (See Tables Below)
  • Uniform Performance Over Broad Bandwidths (See Diffraction Efficiency Graphs Below)
  • Extremely Low Scatter Between Orders (No Ghosting)
  • Dichromated Gelatin (DCG) Film Between Two Glass Substrates
  • Ideal for Spectroscopy, Optical Coherence Tomography (OCT), and Laser Pulse Compression
T-GP3508U Specifications
Design Wavelength 1300 nm
Spatial Frequency 800 ± 2 lines/mm
Line Perpendicularity ±1° Off of 50 mm Edge
Angle of Incidence (AOI)a 31° ± 1°
Diffraction Efficiencyb 1230 nm: S-Pol > 75%; P-Pol > 80%
1300 nm: S-Pol > 80%; P-Pol > 80%
1370 nm: S-Pol > 80%; P-Pol > 75%
BBAR Coatingc 1180 - 1420 nm
Ravg < 0.75%
Transmitted Wavefront Error (RMS) <λ/4 at 632.8 nm
Grating Film Dichromated Gelatin
Cover-Plate Substrate N-BK7 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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