Wasatch Photonics VPH transmission gratings deliver high efficiency, low polarization dependence, and uniform performance over broad bandwidths and large clear apertures – all in a robust, field-tested package. We offer multiple patented design technologies, which gives us more flexibility to recommend the best transmission grating for your unique application. Choose from our in-stock gratings, or talk to us about designing a custom grating or grism for your next R&D project. Are you developing a new OEM product? We can optimize a transmission grating to your exact needs. As an experienced volume gratings supplier, we offer quality, performance, and consistency you can count on.
Learn the top 10 advantages of VPH gratings, click here.
Applications:
- Pulse compression
- OCT
- Hyperspectral imaging
- Astronomy
- Spectroscopy
- Grisms
Which grating do you need? These stock products are readily available. Need something else let us know too.
| Lines per mm | Center @ visible | Center @ 840nm | Center @ 1000+nm | Center @ 1200+nm | Center @ 1550nm |
|---|---|---|---|---|---|
| 250 | 1250nm | ||||
| 360 | 550nm | ||||
| 600 | 600nm | 1030nm | 1550nm | ||
| 800 | 1030nm | ||||
| 1145 | 1310nm | ||||
| 1200 | 840nm | ||||
| 1250 | 1030nm | ||||
| 1700 | 1030nm | ||||
| 1800 | 532nm | 840nm |
You can find more information about the specific gratings in the tabs below.
Applications:
- Hyperspectral Imaging
- Spectroscopy
General Specifications
- SIZE(S): 30 mm diax3
- PART #: WP-250/1250-30
- 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° @ 1250 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 1% Reflection; 900-1800 nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness
- CLEAR APERATURE: 24 mm
- DIMENSIONS: A =30 mm B = 3 mm
Applications:
- Optical Coherence Tomography
General Specifications
- SIZE(S): 30 mm diax3
- PART #: WP-360/550-30
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 360 l/mm +/- 0.5 l/mm
- CWL: 550 nm
- ANGLE OF INCIDENCE (AOI): 5.7° @ 550 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 400nm-700nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness
- CLEAR APERATURE: 24 mm
- DIMENSIONS: A =30 mm B = 3 mm
Applications:
- Optical Coherence Tomography
- Spectroscopy
General Specifications
- SIZE(S): 25.4 mm diax3 & 50.8 mm diax6
- PART #: WP-600/600-25.4, WP-600/600-50.8
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 600 l/mm +/- 0.5 l/mm
- CWL: 600 nm
- ANGLE OF INCIDENCE (AOI): 10.4° @ 600 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 450nm-750nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness, 3 mm BK7 6 mm total thickness
- CLEAR APERATURE: 20 mm, 45 mm
- DIMENSIONS: A =25.4 mm B = 3 mm, A = 50.8 mm B = 6 mm
Applications:
- Hyperspectral Imaging
- Spectroscopy
General Specifications
- SIZE(S): 25.4 x 25.4 mm, 6 mm thick
- PART #: WP-600/1030-25×25
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 600 l/mm +/- 0.5 l/mm
- CWL: 1030 nm
- ANGLE OF INCIDENCE (AOI): 18.0° @ 1030 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 980nm-1080nm
- SUBSTRATE AND COVER GLASS: 3 mm Fused Silica, 6 mm total thickness
- CLEAR APERATURE: 19 mm x 19 mm
- DIMENSIONS: A =25.4 mm B = 25.4 mm T = 6 mm
Applications:
- Optical Coherence Tomography
- Spectroscopy
General Specifications
- SIZE(S): 25.4 mm diax3 & 50.8 mm diax6
- PART #: WP-600/1550-25.4, WP-600/1550-50.8
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 600 l/mm +/- 0.5 l/mm
- CWL: 1550 nm
- ANGLE OF INCIDENCE (AOI): 27.7° @ 1550 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 740nm-940nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness, 3 mm BK7 6 mm total thickness
- CLEAR APERATURE: 20 mm, 45 mm
- DIMENSIONS: A =25.4 mm B = 3 mm, A = 50.8 mm B = 6 mm
Applications:
- Laser Pulse Compression
General Specifications
- SIZE(S): 30 mm x 45 mmx6
- PART #: WP-800/1030-25×35, WP-800/1030-30×45
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 800 l/mm +/- 0.5 l/mm
- CWL: 1030 nm
- ANGLE OF INCIDENCE (AOI): 24.3° @ 1030 nm
- THICKNESS TOLERANCE: +/- 0.25 (6 mm grating only)
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 980nm-1080nm
- SUBSTRATE AND COVER GLASS: 2 mm Fused Silica, 4 mm total thickness; 3 mm Fused Silica, 6 mm total thickness
- CLEAR APERATURE: 10 x 19 mm (25 x 35 mm grating); 24 x 39 mm (30 x 45 mm grating)
- DIMENSIONS: A =25 mm B = 35 mm T = 4 mm; A =30 mm B = 45 mm T = 6 mm
Applications:
- Optical Coherence Tomography
General Specifications
- SIZE(S): 25.4 mm diax3, 50.8 mm diax6, & 35 mm x 45 mmx6
- PART #: WP-HD1145/1310-25.4, WP-HD1145/1310-35X45, WP-HD1145/1310-50.8
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 1145 l/mm +/- 1 l/mm
- CWL: 1310 nm
- ANGLE OF INCIDENCE (AOI): 48.6° @ 1310 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 1220 nm – 1420 nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness, 3 mm BK7 6 mm total thickness, 3 mm BK7 6 mm total thickness
- CLEAR APERATURE: 20 mm, 45 mm, 30 mm x 40 mm
- DIMENSIONS: A =25.4 mm B = 3 mm, A = 50.8 mm B = 6 mm, A =35 mm B = 45 mm T = 6 mm
Applications:
- Optical Coherence Tomography
General Specifications
- SIZE(S): 25.4 mm diax3, 50.8 mm diax6, 35 mm x 45 mmx6
- PART #: WP-1200/840-25.4, WP-1200/840-50.8, WP-1200/840-35×45
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 1200 l/mm +/- 0.5 l/mm
- CWL: 840 nm
- ANGLE OF INCIDENCE (AOI): 30.3° @ 840 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 700 nm – 960 nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness, 3 mm BK7 6 mm total thickness, 3 mm BK7 6 mm total thickness
- CLEAR APERATURE: 20 mm, 45 mm, 30 mm x 40 mm
- DIMENSIONS: A =25.4 mm B = 3 mm, A = 50.8 mm B = 6 mm, A =35 mm B = 45 mm T = 6 mm
Applications:
- Laser Pulse Compression
General Specifications
- SIZE(S): 30 mm x 90 mm x 6
- PART #: WP-1250/1030-30X90
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 1250 l/mm +/- 0.5 l/mm
- CWL: 1030 nm
- ANGLE OF INCIDENCE (AOI): 40.1° @ 1030 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 1020nm-1040nm
- SUBSTRATE AND COVER GLASS: 3 mm Fused Silica 6 mm total thickness
- CLEAR APERATURE: 24 mm x 84 mm
- DIMENSIONS: A =30 mm B = 90 mm T = 6 mm
Applications:
- Laser Pulse Compression
General Specifications
- SIZE(S): 30 mm x 90 mmx6
- PART #: WP-1700/1030-30X90
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 1700 l/mm +/- 0.5 l/mm
- CWL: 1030 nm
- ANGLE OF INCIDENCE (AOI): 61.1° @ 1030 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 1026nm-1040nm
- SUBSTRATE AND COVER GLASS: 3 mm Fused Silica 6 mm total thickness
- CLEAR APERATURE: 24 mm x 84 mm
- DIMENSIONS: A =30 mm B = 90 mm T = 6 mm
Applications:
- Optical Coherence Tomography
- Spectroscopy
General Specifications
- SIZE(S): 25.4 mm diax3 & 50.8 mm diax6
- PART #: WP-1800/532-25.4, WP-1800/532-50.8
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 1800 l/mm +/- 0.5 l/mm
- CWL: 532 nm
- ANGLE OF INCIDENCE (AOI): 28.6° @ 532 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 450 nm – 650 nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness, 3 mm BK7 6 mm total thickness
- CLEAR APERATURE: 20 mm, 45 mm
- DIMENSIONS: A =25.4 mm B = 3 mm, A = 50.8 mm B = 6 mm
Applications:
- Optical Coherence Tomography
General Specifications
- SIZE(S): 25.4 mm diax3, 50.8 mm diax6, 30 mm diax6, 35 mm x 45 mmx6
- PART #: WP-HD1800/840-25.4, WP-HD1800/840-35X45, WP-HD1800/840-30, WP-HD1800/840-50.8
- SURFACE QUALITY: 60-40 scratch-dig
- DIFFRACTED WAVEFRONT: < λ/5 rms @ 632.8 nm
- SPATIAL FREQUENCY: 1800 l/mm +/- 1 l/mm
- CWL: 840 nm
- ANGLE OF INCIDENCE (AOI): 49.1° @ 840 nm
- THICKNESS TOLERANCE: +/- 0.25
- DIMENSIONAL TOLERANCE: 0 /-0.15
- CHAMFERS: 0.25-0.75 mm face width
- CHAMFERS ANGLE/TOLERANCE: 45° +/-15°
- AR COATING: < 0.5% Reflection; 790 nm – 890 nm
- SUBSTRATE AND COVER GLASS: 1.5 mm BK7 3 mm total thickness, 3 mm B270i 6 mm total thickness, 3 mm BK7 6 mm total thickness, 3 mm BK7 6 mm total thickness
- CLEAR APERATURE: 20 mm, 24 mm, 45 mm, 30 mm x 40 mm
- DIMENSIONS: A = 25.4 mm B = 3 mm, A = 30 mm B = 6 mm, A = 50.8 mm B = 6 mm, A =35 mm B = 45 mm T = 6 mm