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	100	Optimum Laser Wavelenght	10.6u
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	100	Optimum Laser Wavelenght	10.6u
Substrate	Pyrex	Size	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 Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	100	Optimum Laser Wavelenght	10.6u
Substrate	Pyrex	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 +200° C
Damage Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	100	Optimum Laser Wavelenght	10.6u
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	100	Optimum Laser Wavelenght	10.6u
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	120	Blaze	12.0μ
Groove Angle	46.05°	Dispersion @ Blaze (nm/mr)	5.78
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	120	Blaze	12.0μ
Groove Angle	46.05°	Dispersion @ Blaze (nm/mr)	5.78
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	120	Blaze	12.0μ
Groove Angle	46.05°	Dispersion @ Blaze (nm/mr)	5.78
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	120	Blaze	12.0μ
Groove Angle	46.05°	Dispersion @ Blaze (nm/mr)	5.78
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	120	Blaze	12.0μ
Groove Angle	46.05°	Dispersion @ Blaze (nm/mr)	5.78
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

Ruled Diffraction Gratings

Optometrics

High Quality Ruled Gratings

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Product SKUs

Product Listing

100 Groove, ML-302, 12.5 X 25 mm, 9.5 mm Thick, Replica

100 Groove, ML-302, 25 mm Sq., 9.5 mm Thick, Replica

100 Groove, ML-302, 25 X 50 mm, 9.5 mm Thick, Replica

100 Groove, ML-302, 30 mm Sq., 9.5 mm Thick, Replica

100 Groove, ML-302, 50 mm Sq., 9.5 mm Thick, Replica

120 Groove, 12.0μ Blaze, 12.5 X 25 mm, 6 mm Thick, CW Type

120 Groove, 12.0μ Blaze, 12.5 X 25 mm, 6 mm Thick, Standard

120 Groove, 12.0μ Blaze, 12.5 X 25 mm, 9.5 mm Thick, CW Type

120 Groove, 12.0μ Blaze, 12.5 X 25 mm, 9.5 mm Thick, Standard

120 Groove, 12.0μ Blaze, 12.7 mm Sq., 6 mm Thick, CW Type