This invention proposes achieving the same effect of a single, high intensity pulse through the use of a closely spaced burst of short duration pulses. By keeping the intensity of the individual pulses below the damage threshold the risk of catastrophic damage is greatly mitigated. Additionally, the pulses are directed to strike the target at locations temporally and spatially sufficiently…
Keywords
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- Substrate Engraved Meta-Surface (SEMS) (7)
- Compact Space Telescopes (5)
- Diode Lasers (4)
- Laser Materials Processing (4)
- Precision Optical Finishing (4)
- Optical Damage Mitigation (3)
- RF Photonics (3)
- Additively Manufactured (AM) Optics (2)
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- Optical Switches (1)
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- (-) Ultrashort Pulse Lasers (2)
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Technology Portfolios

This invention proposes the use of a nonlinear spectral broadening subsystem as a post-CPA pulse compression add-on for high energy laser systems. The proposed solution utilizes the beam profile of a high peak power laser as a reference to shape a highly transmissive nonlinear plastic (e.g., CR39) itself to ensure a spatially homogeneous nonlinear spectral broadening.

The LLNL method for optimizing as built optical designs uses insights from perturbed optical system theory and reformulates perturbation of optical performance in terms of double Zernikes, which can be calculated analytically rather than by tracing thousands of rays. A new theory of compensation is enabled by the use of double Zernikes which allows the performance degradation of a perturbed…