Ruled Diffraction Gratings, P-Type, CW-Type, Low CTE

Ruled Diffraction Gratings

Optometrics

Ruled Diffraction Gratings

ruled-diffraction-grating-efficiency-curve — Sample Efficiency Curve – 120/12µ Ruled Diffraction Grating

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, they have a relatively sharp peak around their blaze wavelength.

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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Standard

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

P-Type

Pulsed 3.5 joules/ cm² @ 200 n sec.
CW 80 watts/cm²

CW-Type

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

For continuous high power applications.

Damage Thresholds

Available with either P-type or CW-type construction for higher damage threshold performance holographic 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.

Resources

Success Story

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Need Low CTE and P-type Holographic Gratings? Contact Optometrics.

Product SKUs

Ruled Diffraction Grating Specifications | G120R12.0QEAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0QGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0CEAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	12.7 mm Sq.	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0GEAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0GGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0TGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	25 X 50 mm	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0JGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	30 mm Sq.	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0MGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	50 mm sq.	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G1200R1.0QEAC

Optical Coating	Aluminum	Grooves Per mm	1200
Blaze	1.0μ	Groove Angle	36.87°
Dispersion @ Blaze (nm/mr)	0.67	Substrate	Pyrex
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +200° C
Damage Threshold: Pulsed	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW laser	250 watts/cm²

Ruled Diffraction Grating Specifications | G1200R1.0QEAS

Optical Coating	Aluminum	Grooves Per mm	1200
Blaze	1.0μ	Groove Angle	36.87°
Dispersion @ Blaze (nm/mr)	0.67	Substrate	Float Glass
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

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Ruled Diffraction Gratings

Optometrics