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Grating: 1200 l/mm @ 840 nm CWL - Image 2
Grating: 1200 l/mm @ 840 nm CWL - Image 3

Grating: 1200 l/mm @ 840 nm CWL

  • AOI = 15.7° | Wavelength range: 700-960 nm
  • High 1st order diffraction efficiency over the full spectral band
  • Low scatter & AR coated to minimize stray light; low polarization dependence
  • Robust & durable, making it easy to clean, handle and align

Price range: $495.00 through $1,000.00

Size(s)
25.4 mm, 3 mm thick | 50.8 mm, 6 mm thick | 25 x 25 mm, 3 mm thick | 35 x 45 mm, 6 mm thick
Part #
WP-600/600-25.4 | WP-600/600-50.8 | WP-1200/840-25X25 | WP-1200/840-35X45
Wavelength Range
700-960 nm
Surface Quality
60-40 scratch-dig
Diffracted Wavefront
< λ/5 rms @ 633 nm over a 1" diameter
Spatial Frequency
600 l/mm +/- 0.5 l/mm
CWL
900 nm
Angle of Incidence (AOI)
15.7° @ 900 nm
Thickness Tolerance
+/- 0.25
Dimensional Tolerance
?
Chamfers
0.25-0.75 mm face width
AR Coating
Optimized for the specified wavelength range & AOI
Substrate & Cover Glass
1.5 mm BK7 (3 mm total thickness) | 3 mm BK7 (6 mm total thickness)
Dimensions
A=25.4 mm B=3 mm | A=50.8 mm B=6 mm
Clear Aperture
20 mm | 45 mm

The diffraction efficiency and the angle of diffraction as a function of wavelength for this online shop grating are:

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