Plymouth Grating Laboratory, Inc.
Plymouth Grating Laboratory, Inc.
🇺🇸 United States, Massachusetts
200411-50 peopleManufacturerPlymouth Grating Laboratory, Inc. (PGL) is a premier manufacturer of high-performance diffraction gratings for the laser and optics industry. Founded in 2004 and headquartered in Carver, Massachusetts, the company operates from a specialized 20,000 sq. ft. facility dedicated to manufacturing, engineering, and optical metrology. PGL is recognized as a global leader in producing large-scale gratings, with capabilities extending to substrate sizes of 1 meter x 0.6 meters and the ongoing development of X-large gratings up to two meters for high-power laser systems.
The company's core competency lies in its proprietary Nanoruler technology, based on Scanning Beam Interference Lithography (SBIL) developed at MIT. This advanced manufacturing process allows PGL to deliver gratings with exceptional diffraction efficiency, high laser-induced damage thresholds (LIDT), and superior wavefront uniformity. Their extensive product portfolio includes Multi-layer Dielectric (MLD) gratings, Gold gratings, Hybrid metal-dielectric reflection gratings, Transmission gratings, and 2D gratings. These components are critical for demanding applications such as Chirped Pulse Amplification (CPA), Spectral Beam Combining (SBC), and Directed Energy systems.
As a contract manufacturer and OEM partner, PGL serves prestigious scientific and commercial clients, including the Laboratory for Laser Energetics (LLE) at the University of Rochester and Rutherford Appleton Laboratory. With a team of approximately 11 to 50 employees and annual revenues exceeding $4 million, the company provides comprehensive solutions ranging from design and modeling to reactive ion etching and thin-film coating, ensuring precision optics for the world's most powerful laser systems.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Product customizationOffers full customization for design and features.
Industry association memberMember of SPIE association.
Established brandFounded in 2004, with over 20 years of industry experience.
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Multilayer Dielectric (MLD)
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The combination of PGL’s grating and thin-film coating design and fabrication provide unbeaten diffraction efficiency, damage threshold, and wavefront error for the world’s largest ultrahigh-intensity lasers as well as rapidly expanding commercial lasers.
Hybrid
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Like MLDs, hybrids comprise an all-dielectric grating over a high-reflecting mirror, resulting in good laser damage thresholds, only the mirror is metal instead of dielectric, resulting in broad spectral bandwidths like metal on glass gratings.
Two-dimensional (2D)
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The SBIL process enables PGL to fabricate gratings with extreme linearity, or accuracy, as well as highly controlled diffraction efficiency in multiple dimensions and polarizations.
Gold
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PGL pioneered gold-on-etched-glass gratings for the most demanding broadband, femtosecond Ti:Sapphire and OPCPA lasers. These gratings offer the highest laser damage threshold and can even be refurbished at a relatively low cost if damaged.
Transmission
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Exceptionally uniform and deep etching processes enable repeatable, uniform, low-wavefront-error gratings with excellent diffraction efficiency into a single transmitted order.
High Energy Laser (HEL) Spectral Beam Combining (SBC)
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PGL is the leading commercial supplier of gratings that are proven to meet the performance requirements of Directed Energy HEL systems.Customers
M BIOLOGIX
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