The Lawrence Livermore National Laboratory is home to the world’s largest laser system, the National Ignition Facility (NIF). The NIF with its 192 beam lines and over 40,000 optics has been an engine of innovation for lasers and optics technologies for the last couple of decades. The Lasers and Optics intellectual property portfolio is the culmination of the many groundbreaking developments in high energy, high peak power and ultrashort pulse laser system design and operation, including technologies related to Laser Diodes, Fiber & Disk Lasers, Compact Telescopes, High Damage Threshold Gratings, High Power Optical Components and their Fabrication and Coating Techniques. The thrust of the research and development at the NIF has been to realize novel approaches for laser systems, optical components and their applications that are more compact and higher efficiency while reliably delivering ever higher energy and peak power capabilities required in the furtherance of LLNL’s missions in Stockpile Stewardship and High Energy Density Science.
Portfolio News and Multimedia
R&D World Magazine recently announced their 2022 award winners. LLNL researchers received three awards, which include Tailored Glass by Direct Ink Writing, novel compression gratings that enable a new class of high-energy laser systems and a 3D printing feedstock known as Energy Inks that can print a functioning battery.
NASA's funding will enable LLNL and Kentucky-based space life sciences company, Space Tango to mature prototypes of the “replicator” technology — a ultrafast 3D printer co-developed by LLNL and the University of California, Berkeley — for bioprinting in microgravity on the International Space Station.
Researchers at Lawrence Livermore National Laboratory and the University of California, Berkeley have demonstrated the ability to 3D-print microscopic objects in silica glass, part of an effort to produce delicate, layer-less optics that can be built in seconds
This invention works by imaging an ultrafast pulse diffracted from a large grating onto a spatial light modulator (SLM) thereby directly transcribing an arbitrary record on a pulse front tilted (PFT) ultrafast pulse. The grating generates PFT of the input pulse, and the SLM provides temporal control of the pulse through the space-to-time mapping of the tilted pulse. Coupling this patterned…
This invention exploits the non-linearities of optical Mach-Zehnder (MZ) electrooptic modulators to enhance small signal dynamic range at higher bandwidths. A linear photodiode (PD) converts the amplified optical signal output from the MZ back to an electrical signal completing an Electrical-Optical-Electrical (EOE) conversion cycle. The dynamic range can be further enhanced by daisy chaining…
LLNL researchers have developed a high average power Faraday rotator that is gas-cooled and uniquely designed to dissipate heat uniformly so that it does not build up in the optical component and affect its performance. The Faraday rotator material is sliced into smaller disks like a loaf of bread so that high speed helium gas can flow between the slices. With this highly efficient cooling…
This invention discloses a method to minimize transient variations in the wavelength- and/or pointing-behavior of an optic, without requiring a reduction in its thermal resistance, optical absorption, or operating irradiance. The invention employs a combination of a time-varying heat source and time-varying thermal resistance and/or heat sink temperature to achieve temperature stability of the…
This invention concerns a new type of optic: a transient gas or plasma volume grating produced indirectly by small secondary lasers or directly by nonlinear processes using the primary beams themselves. When used in conjunction with advantageously placed shielding it offers a means of protecting the final optical components of a high-repetition-rate IFE facility. These transmission optics are…
LLNL researchers in the NIF Directorate DoD Technologies RF Photonics Group explored phase modulation solutions to this signal processing challenge. Optical frequency combs offer phase noise characteristics that are orders of magnitude lower than available from commercial microwave references. The Photonics Group researchers recognized that by converting the intensity information into phase,…