Echelle Diffraction Gratings
Showing 31–36 of 36 results
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79 Groove, 75° Echelle, 12.7 mm Sq., 6 mm Thick, CW Type
Grooves Per mm
79
Groove Angle
75°
Dispersion @ 500 nm (nm/mr)
3.28
Substrate
Pyrex
Size (mm)
12.7 mm Sq.
Size Tolerance
±0.5 mm
Thickness
6 mm
Thickness Tolerance
±0.5 mm
Coating
Aluminum
Scratch/Dig
60/40
Clear Aperture
90%
Edge Angle
90° ±0.50°
Perpindicularity
90° ±0.50°
Operating Temperature Range
-50° C to +200° C
Damage Thresh. - Pulsed laser
3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW laser
250 watts/cm²
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79 Groove, 75° Echelle, 25 mm Sq., 6 mm Thick, CW Type
Grooves Per mm
79
Groove Angle
75°
Dispersion @ 500 nm (nm/mr)
3.28
Substrate
Pyrex
Size (mm)
25 mm Sq.
Size Tolerance
±0.5 mm
Thickness
6 mm
Thickness Tolerance
±0.5 mm
Coating
Aluminum
Scratch/Dig
60/40
Clear Aperture
90%
Edge Angle
90° ±0.50°
Perpindicularity
90° ±0.50°
Operating Temperature Range
-50° C to +200° C
Damage Thresh. - Pulsed laser
3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW laser
250 watts/cm²
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79 Groove, 75° Echelle, 25 mm Sq., 9.5 mm Thick, CW Type
Grooves Per mm
79
Groove Angle
75°
Dispersion @ 500 nm (nm/mr)
3.28
Substrate
Pyrex
Size (mm)
25 mm Sq.
Size Tolerance
±0.5 mm
Thickness
9.5 mm
Thickness Tolerance
±0.5 mm
Coating
Aluminum
Scratch/Dig
60/40
Clear Aperture
90%
Edge Angle
90° ±0.50°
Perpindicularity
90° ±0.50°
Operating Temperature Range
-50° C to +200° C
Damage Thresh. - Pulsed laser
3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW laser
250 watts/cm²
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79 Groove, 75° Echelle, 25 X 50 mm, 9.5 mm Thick, CW Type
Grooves Per mm
79
Groove Angle
75°
Dispersion @ 500 nm (nm/mr)
3.28
Substrate
Pyrex
Size (mm)
25 X 50 mm
Size Tolerance
±0.5 mm
Thickness
9.5 mm
Thickness Tolerance
±0.5 mm
Grooves Parallel
Short
Coating
Aluminum
Scratch/Dig
60/40
Clear Aperture
90%
Edge Angle
90° ±0.50°
Perpindicularity
90° ±0.50°
Operating Temperature Range
-50° C to +200° C
Damage Thresh. - Pulsed laser
3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW laser
250 watts/cm²
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79 Groove, 75° Echelle, 30 mm Sq., 9.5 mm Thick, CW Type
Grooves Per mm
79
Groove Angle
75°
Dispersion @ 500 nm (nm/mr)
3.28
Substrate
Pyrex
Size (mm)
30 mm Sq.
Size Tolerance
±0.5 mm
Thickness
9.5 mm
Thickness Tolerance
±0.5 mm
Coating
Aluminum
Scratch/Dig
60/40
Clear Aperture
90%
Edge Angle
90° ±0.50°
Perpindicularity
90° ±0.50°
Operating Temperature Range
-50° C to +200° C
Damage Thresh. - Pulsed laser
3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW laser
250 watts/cm²
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79 Groove, 75° Echelle, 50 mm Sq., 9.5 mm Thick, CW Type
Grooves Per mm
79
Groove Angle
75°
Dispersion @ 500 nm (nm/mr)
3.28
Substrate
Pyrex
Size (mm)
50 mm sq.
Size Tolerance
±0.5 mm
Thickness
9.5 mm
Thickness Tolerance
±0.5 mm
Coating
Aluminum
Scratch/Dig
60/40
Clear Aperture
90%
Edge Angle
90° ±0.50°
Perpindicularity
90° ±0.50°
Operating Temperature Range
-50° C to +200° C
Damage Thresh. - Pulsed laser
3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW laser
250 watts/cm²
