研究目的
To present a new evaluation factor, PIR (power in ring), that can evaluate how much the beam quality of high-energy lasers could be improved by adaptive optics (AO) systems.
研究成果
The PIR factor effectively evaluates the improvement potential of laser beams by AO systems, with beams having higher PIR values showing better improvement. The study demonstrates that as the number of DM actuators increases, the AO system can compensate for higher spatial frequency phase aberrations, improving beam quality even for beams with lower PIR values.
研究不足
The study assumes ideal conditions for the AO system's operation, ignoring temporal dynamics and other factors like responsive bandwidth, rectification error, reconstruction algorithm, and control law. The main focus is on the spatial resolution of the DM actuators.
1：Experimental Design and Method Selection:
The study involves analyzing the long-propagation light intensity distribution with different Zernike phase aberrations and defining a new factor, PIR, based on intensity analysis.
2：Sample Selection and Data Sources:
Beams with different PIR values are generated by adding different order Zernike polynomials to Gauss beams.
3：List of Experimental Equipment and Materials:
The model uses deformable mirrors (DMs) with different numbers of actuators for AO compensation.
4：Experimental Procedures and Operational Workflow:
The beams are compensated by AO systems with DMs of varying actuator numbers, and the compensation effects are evaluated.
5：Data Analysis Methods:
The improvement in beam quality is assessed using the β factor after AO compensation.
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