White PaperTest & Measurement
Destroy the Target, Not Everything Else: Beam Management in High-Power Directed Energy Laser Projects
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Using high power lasers to neutralize threats is a significant advance in weapons systems. Lasers are not affected by gravity, travel without sound at the speed of light, can be controlled at lethal and non-lethal doses, and provide unlimited ammunition. But these high-power laser systems present challenges, such as susceptibility to thermal effects and safety concerns. Understanding how these issues impact the laser’s system overall system’s performance is critical to ensuring success.
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Overview
This white paper discusses advancements in high-power directed energy laser systems, emphasizing their growing importance in military applications. It highlights the critical role of Power Density, defined as the laser power relative to its beam size, in determining the effectiveness of laser systems. An optimal Power Density is essential; too high can damage unintended targets, while too low can render the laser ineffective.
The paper addresses challenges in beam management, particularly the risks associated with unintended reflections during laser operation. It introduces solutions such as beam dumps made from absorbent materials, which prevent damage to surrounding objects. Recent innovations include high-power sensors from Ophir, capable of measuring laser powers up to 150 kW, enhancing safety and efficiency in beam management.
Additionally, the document emphasizes the importance of understanding the laser system's behavior, including the effects of environmental factors and component degradation on performance. Accurate measurement of laser power and beam profile is crucial for maintaining system effectiveness, especially in dynamic conditions.
Overall, the white paper underscores the necessity of continuous advancements in laser technology and measurement tools to ensure the reliability and safety of directed energy systems, ultimately aiming to protect military personnel and enhance operational capabilities.