VPH Laser Pulse Compression Gratings

High-efficiency, high-quality diffracted wavefront in a robust package

LPC Gratings for Ultrafast Lasers

Maximise efficiency, minimise distortions

Wasatch Photonics enhanced VPH transmission gratings are exceptional for laser pulse compression (LPC) of ultrafast lasers. Depending on the requirements, 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.

Online gratings are available, or we can collaborate on custom OEM designs from prototype to volume production.

Features & Benefits

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    Exceptional first-order diffraction efficiency, up to 98%
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    High transmission across the full spectral band
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    Low diffracted wavefront distortion and minimal scatter
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    Uniformity diffraction efficiency across the full clear aperture
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    Robust design for easy cleaning and handling
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    Maximum optical design flexibility 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 and AOI

Design Graphs

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.