Established Industrial Laser Partner

Maximise efficiency, minimise distortions

Our efficiency & uniformity can take you to higher power. Wasatch Photonics’ enhanced VPH transmission gratings are exceptional for pulse compression and pulse stretching of high power ultrafast lasers. Depending on the requirments, our ultraclear transmissive gratings are available in efficiencies over 98%, with virtually no ghosting or scatter. Unlike surface relief gratings, our gratings can be easily cleaned and handled. Choose from our range of stock gratings, or contact us to discuss custom OEM designs and materials. We are your partner, from small quantity prototyping through to volume production.

Features & Benefits

  • Exceptional 1st order diffraction efficiency (up to 98%)
  • High transmission over the full spectral band
  • Low diffracted wavefront distortion, minimal scatter
  • Uniform over the full clear aperture for minimal beam distortion
  • Ideal for high pulse energy applications
  • Robust design allows easy cleaning & handling
  • Maximum optical design flexibility – ideal for folded designs

Wasatch Photonics' VPH transmission gratings provide over 98% efficiency for high-power ultrafast laser applications.

Typical LPC Grating Specifications

WP-800/1030-xx
WP-1250/1030-xx
WP-1800/1030-xx
Nominal Wavelength
980 – 1080 nm
1020 – 1040 nm
1020 – 1040 nm
Diffraction Efficiency *
96-98% *
94-96% *
94-96% *
Spatial Frequency
800 ± 0.5 lines/mm
1250 ± 0.5 lines/mm
1800 ± 0.5 lines/mm
Angle of Incidence
24.3° @ 1030 nm
40.1° @ 1030 nm
68.0° @ 1030 nm
Sizes Available (-xx)
25 x 35 x 4 mm
30 x 45 x 6 mm
30 x 90 x 6 mm
25 x 25 x 6 mm
Wavefront Distortion
< λ/5 rms @ 633 nm over a 25 mm diameter
Surface Quality
60-40 scratch-dig
AR Coating
Optimized for the specified wavelength range & AOI
* For custom gratings, the minimum efficiency required will determine unit price, and may be up to 98%.

Nominal Wavelength

980 – 1080 nm

Diffraction Efficiency *

96-98% *

Spatial Frequency

800 ± 0.5 lines/mm

Angle of Incidence

24.3° @ 1030 nm

Sizes Available (-xx)

25 x 35 x 4 mm
30 x 45 x 6 mm

Wavefront Distortion

< λ/5 rms @ 633 nm over a 25 mm diameter

Surface Quality
Optimized for the specified wavelength range & AOI

AR Coating

Optimized for the specified wavelength range & AOI

Nominal Wavelength

1020 – 1040 nm
Diffraction Efficiency *

96-98% *

Spatial Frequency

800 ± 0.5 lines/mm

Angle of Incidence

40.1° @ 1030 nm

Sizes Available (-xx)

25 x 35 x 4 mm
30 x 45 x 6 mm

Wavefront Distortion

< λ/5 rms @ 633 nm over a 25 mm diameter

Surface Quality
Optimized for the specified wavelength range & AOI

AR Coating

Optimized for the specified wavelength range & AOI

Nominal Wavelength

1020 – 1040 nm

Diffraction Efficiency *

94-96% *

Spatial Frequency

1800 ± 0.5 lines/mm

Angle of Incidence

68.0° @ 1030 nm

Sizes Available (-xx)

25 x 25 x 6 mm

Wavefront Distortion

< λ/5 rms @ 633 nm over a 25 mm diameter

Surface Quality
Optimized for the specified wavelength range & AOI

AR Coating

Optimized for the specified wavelength range & AOI

* For custom gratings, the minimum efficiency required will determine unit price, and may be up to 98%.

Design Graphs

Ready to Start Your Project?

Not sure where to start? Use our grating calculator, submit your parameters or custom design, and let our experts handle the rest.

Misty Johnson

Misty Johnson is responsible for taking care of our grating customers at the Logan, Utah, facility. She has been a member of the Wasatch Photonics team since 2009. By understanding her customers’ needs and goals, as well as the current grating market, Misty is able to provide a superior level of customer support. As Account Manager, she acts as a liaison between customers and Wasatch Photonics’ manufacturing department making sure that the lines of communication are always open.

Customer support is an integral part of Wasatch Photonics commitment to customers. Whether you are in the market to purchase a single grating, inquiring as a distributor, or purchasing large volume, Misty will guide you seamlessly through the custom design process. Misty strives to build trust and strong long term relationships with Wasatch Photonics customers. She brings 20 years’ experience as customer support manager from a number of manufacturing and service companies.