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Grating: 250 l/mm @ 1250 nm CWL - Image 2
Grating: 250 l/mm @ 1250 nm CWL - Image 3

Grating: 250 l/mm @ 1250 nm CWL

  • AOI = 9.0° | Wavelength range 900-1800 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

$695.00

Size(s)
30 mm, 3 mm thick
Part #
WP-250/1250-30
Wavelength Range
900-1800 nm
Surface Quality
60-40 scratch-dig
Diffracted Wavefront
< λ/5 rms @ 632.8 nm
Spatial Frequency
250 l/mm +/- 0.5 l/mm
CWL
1250 nm
Angle of Incidence (AOI)
9.0° @ 1250 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)
Dimensions
A=30 mm B=3 mm
Clear Aperture
24 mm

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

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