Ruled Diffraction Gratings

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Optometrics

High Quality Ruled Gratings

These replicated diffraction gratings are produced from high-quality ruled master gratings and are intended for use in spectrometers and monochromators where cost and high efficiency are of primary concern. Ruled diffraction gratings have a higher peak efficiency than holographic diffraction gratings and a sharper spectral response around their blaze wavelength, due to their “sawtooth” groove profile.

Applications like fluorescence excitation, analytical chemistry, life sciences, telecom, physics, education and space sciences – centered around a narrow wavelength range – benefit from a ruled diffraction grating blazed at that wavelength.

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Damage Thresholds

Available with standard or CW-type construction for higher damage threshold performance ruled diffraction gratings can also be produced on substrates with a lower coefficient of thermal expansion (CTE) for better stability. No damage threshold minimums apply to diffraction gratings with an overcoat.

Standard

Pulsed 350 milli-joules/ cm² @ 200 n sec.
CW 40 watts/cm²

CW-Type

Pulsed 3.5 joules/ cm² @ 200 n sec.
CW 250 watts/cm²

For continuous high power applications.

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Product SKUs

Product Listing

Grooves Per mm	1200	Blaze	500 nm
Groove Angle	17.46°	Dispersion @ Blaze (nm/mr)	0.8
Substrate	Float Glass	Size	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 +125° C
Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	500 nm
Groove Angle	17.46°	Dispersion @ Blaze (nm/mr)	0.8
Substrate	Pyrex	Size	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 Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	500 nm
Groove Angle	17.46°	Dispersion @ Blaze (nm/mr)	0.8
Substrate	Float Glass	Size	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 +125° C	Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	500 nm
Groove Angle	17.46°	Dispersion @ Blaze (nm/mr)	0.8
Substrate	Pyrex	Size	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 Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	500 nm
Groove Angle	17.46°	Dispersion @ Blaze (nm/mr)	0.8
Substrate	Float Glass	Size	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 +125° C	Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	750 nm
Groove Angle	26.74°	Dispersion @ Blaze (nm/mr)	0.74
Substrate	Pyrex	Size	12.5 X 25 mm
Size Tolerance	±0.5 mm	Thickness	6 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 Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	750 nm
Groove Angle	26.74°	Dispersion @ Blaze (nm/mr)	0.74
Substrate	Float Glass	Size	12.5 X 25 mm
Size Tolerance	±0.5 mm	Thickness	6 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 +125° C
Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	750 nm
Groove Angle	26.74°	Dispersion @ Blaze (nm/mr)	0.74
Substrate	Pyrex	Size	12.5 X 25 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 Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	750 nm
Groove Angle	26.74°	Dispersion @ Blaze (nm/mr)	0.74
Substrate	Float Glass	Size	12.5 X 25 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 +125° C
Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	750 nm
Groove Angle	26.74°	Dispersion @ Blaze (nm/mr)	0.74
Substrate	Pyrex	Size	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 Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Optometrics

High Quality Ruled Gratings

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Product SKUs

Product Listing

1200 Groove, 500 nm Blaze, 25 X 50 mm, 9.5 mm Thick, Standard

1200 Groove, 500 nm Blaze, 30 mm Sq., 9.5 mm Thick, CW Type

1200 Groove, 500 nm Blaze, 30 mm Sq., 9.5 mm Thick, Standard

1200 Groove, 500 nm Blaze, 50 mm Sq., 9.5 mm Thick, CW Type

1200 Groove, 500 nm Blaze, 50 mm Sq., 9.5 mm Thick, Standard

1200 Groove, 750 nm Blaze, 12.5 X 25 mm, 6 mm Thick, CW Type

1200 Groove, 750 nm Blaze, 12.5 X 25 mm, 6 mm Thick, Standard

1200 Groove, 750 nm Blaze, 12.5 X 25 mm, 9.5 mm Thick, CW Type

1200 Groove, 750 nm Blaze, 12.5 X 25 mm, 9.5 mm Thick, Standard

1200 Groove, 750 nm Blaze, 12.7 mm Sq., 6 mm Thick, CW Type